How to Compare Floor Plans for Circulation, Storage, and Accessibility

Compare preliminary plans on the same scaled drawings by tracing real household routes, checking what each route carries, testing storage handoffs, and marking privacy conflicts. Then test current and future mobility scenarios without treating voluntary accessibility features as code. Use the worksheet below to expose tradeoffs, run a sensitivity check, and send the architect a recorded change list plus questions for the actual local authority having jurisdiction (AHJ).

This guide is for a homeowner in the United States comparing two or more preliminary new-home plans during the brief-to-schematic-design stage. It does not approve a plan, interpret a local code, size structure, determine multifamily compliance, or replace an architect, accessibility specialist, engineer, building official, or other qualified professional. No city, county, state, tribal, or other local rule is asserted here because no project jurisdiction was supplied. For your project, name the actual city or county building department, state agency, tribal authority, or other AHJ responsible for the site and ask that authority what it has adopted.

Set up a fair comparison before you choose a winner #

The fairest comparison uses the same scaled plan version, the same household scenarios, the same furniture and carried-item assumptions, and the same decision weights for every plan. Do not let one plan win because it is shown in color, has more attractive furniture, or includes dimensions that the other plan omits. First create a comparison packet, freeze the inputs, and identify which questions belong to the homeowner, architect, specialist and AHJ.

What decision are you actually making?

The decision is not “Which plan looks most open?” It is: “Which plan gives this household the most reliable routes, storage handoffs, privacy and present or future mobility options, subject to the changes we can still afford and verify?” That wording matters because a plan can be efficient for one route and poor for another. A short kitchen-to-dining path may coexist with an exposed bedroom door. A compact plan may save corridor area but leave no place to turn while carrying a laundry basket. A generous foyer may improve arrival while wasting floor area that the household needs for pantry storage.

Write the decision in one sentence on the first page of your packet. Add a date, plan names, revision numbers, scale, north arrow if available, stated square footage, and the people who will review it. If Plan A is “A-102, Revision 3, dated May 12” and Plan B is “B-102, Revision 1, dated May 15,” ask the architect to issue comparable revisions before scoring. Comparing a dimensioned schematic against an undimensioned concept creates false precision.

Inputs to collect from the household

Collect these inputs before tracing. If an input is unknown, record “unknown” instead of silently guessing.

Measure the items that matter. You do not need a laboratory inventory. A tape measure, a note in inches or millimeters, and a photograph of an item with a ruler can be enough for the brief. Record whether the dimension includes handles, wheels, doors, lids or a person holding the item. For a trash bin, record the widest body dimension and the clearance needed to pull it past the wall. For a stroller or wheelchair, record the actual device model if known; do not substitute a generic rectangle and then claim universal access.

The U.S. Access Board explains that clear floor space at accessible elements has specific dimensions in the ADA Standards, including a 30-by-48-inch minimum for many forward or side approaches, with different conditions for confined alcoves. That is useful source material for a scenario test, but it is not a universal private-home rule. Keep the source's scope attached to the note instead of copying “30 by 48” into a score sheet labelled “code.” The Access Board guide to clear floor and turning space is a reference for the planning conversation; the architect and the actual AHJ must establish which requirements apply.

Who owns each answer?

Assign responsibility before the meeting. The homeowner owns the truth of the routine: who carries what, where it starts, how often it happens, and which privacy failures are unacceptable. The architect or qualified designer owns drawing interpretation, dimensional coordination, alternatives and the professional design response. A mobility or occupational-therapy professional may help define a user's actual device, transfer pattern or assistance needs. The AHJ owns interpretation of the adopted requirements it administers. A structural engineer, civil engineer, builder, surveyor or other specialist owns answers inside their discipline. No one should infer another person's approval from a sketch.

Use a responsibility table like this:

Originality brief: what this worksheet adds

Current answers generally split the problem into separate checklists: one discusses hallways and doors, another discusses storage, an accessibility authority discusses clearances and turning, and research studies circulation or user preferences under their own methods. The missing decision is how a homeowner should compare two live preliminary plans when routes, storage, privacy and future mobility compete.

The original contribution in this guide is The Floor-Plan Decision Surface, a worksheet and decision matrix. Its method is inspectable: Trace the same named origin-destination routes on scaled plan PDFs, record storage handoffs and obstacles, test specified mobility scenarios, then apply an illustrative weighted score and sensitivity cases. In practice, that means using the same scaled plans; naming the route; marking the origin, destination, turns and handoffs; recording item dimensions and storage locations; testing a defined mobility scenario; assigning weights; calculating a weighted result; and running sensitivity cases that change the uncertain assumptions. The source inputs are the Access Board's route and turning principles, HUD/DOJ's limited multifamily scope, University of Kentucky accessibility guidance, the University of Illinois adaptable-home concept, and the cited layout studies.

Its limitations are equally important. It is not a code review, permit approval, measured performance study, universal clearance rule, accessibility certification or prediction of construction cost. The weighted score is an illustrative decision aid, not a population study. The plan PDFs may omit furniture, trim, door hardware, built-in depth, structure, mechanical equipment, finished-floor transitions and site grades. The worksheet disappears as a reliable tool if the plans are not at the same scale, if a mobility device is guessed, if weights are chosen after seeing the result, or if a professional does not verify the next revision. It is not a code review, permit approval, measured performance study or universal clearance rule; dimensions, local requirements and final design decisions must be verified by the architect and the applicable authority having jurisdiction.

Prepare the plan set

Use one PDF for each plan with the same drawing convention. If one plan is at 1/4 inch equals 1 foot and another is at 1/8 inch equals 1 foot, either print or digitally scale both to a common working scale or trace them into a common grid. Do not compare pixels, visual room size or screenshots without scale. Ask for the wall thickness, door swings, window locations, stairs, built-in cabinets, plumbing fixtures, mechanical closets and any fixed equipment that will affect the route.

Create five layers:

1. Base plan: walls, doors, stairs, fixtures and fixed cabinetry.
2. Movement layer: one color for each household route.
3. Item layer: the footprint or swept path of what is carried, pushed or stored.
4. Mobility layer: the defined device or assistance scenario.
5. Decision layer: pass, concern, question, change request and owner.

Keep a clean copy. Work on a duplicate so the architect can see both the original and the marked version. Number every mark. “C-04: garage-to-pantry route crosses guest arrival” is actionable; “awkward” is not.

What a fair comparison excludes

Do not let finishes, staging furniture, exterior elevations, trend labels or resale guesses dominate this decision unless they are explicit household criteria. Do not assume a plan with fewer hallways is automatically better. Do not call an open plan accessible merely because a wheelchair icon fits in one room. Do not call a plan noncompliant from a remote PDF. Do not use federal multifamily guidance as a single-family permit rule.

HUD and DOJ describe Fair Housing Act design-and-construction requirements for covered multifamily housing, including accessible routes, sufficiently wide doors, reachable controls, bathroom wall reinforcement and usable kitchens and bathrooms. That federal guidance is important when its covered housing scope applies, but it is not a general requirement that decides a detached home in every American jurisdiction. HUD's release on the HUD/DOJ guidance names the multifamily scope. In your packet, write the project type and actual jurisdiction before asking whether that guidance or another rule applies.

The next decision is whether the plans are comparable enough to trace. If not, ask the architect for matching dimensioned PDFs and a revision note. If yes, begin with the routes that occur most often and have the highest consequence when they fail.

Turn household routines into route tests #

A route test compares the complete movement from origin to destination, including doors, turns, carried objects, stopping points and return trips. Start with frequency and consequence, not with corridor length. A two-minute route used twenty times a day may deserve more attention than a five-minute route used once a month, while a rare emergency or care route may deserve a separate high-consequence test.

Build the origin-destination list

List at least twelve routes for a typical new home. Select routes that cross different zones and expose different conflicts. Good starting routes include:

• driveway or garage to entry;
• garage to pantry or kitchen;
• garage to mudroom and laundry;
• entry to coat, shoe and bag storage;
• kitchen to dining table;
• kitchen to outdoor eating or terrace;
• bedroom to bathroom at night;
• bedroom to laundry;
• nursery or child bedroom to caregiver location;
• guest entry to powder room without crossing private rooms;
• home office to coffee, bathroom and exit;
• kitchen to trash, recycling and compost;
• mechanical or utility room to exterior service access;
• primary living level to sleeping or outdoor level;
• bedroom to the safest exit route;
• parking or drop-off to the most frequently used entry.

Do not list only room pairs. Name the task: “Two adults return from a grocery trip, enter from the garage, carry four bags and one bulky package, put refrigerated items away, and return empty bags to a storage point.” The plan is being tested against a sequence, not a line.

For every route, record frequency per day or week, time pressure, carried item, users, privacy sensitivity, consequence of failure and whether a return path is needed. A route can be short and still score poorly if it passes a sleeping child's door at 6 a.m., requires a door to be held open while carrying a bin, or forces a caregiver to stand between a user and the bathroom.

Trace the route in a repeatable order

Trace each route on Plan A and Plan B in the same order:

1. Mark the exact origin and destination.
2. Draw the preferred path with no shortcuts through furniture or closed doors.
3. Mark every door and indicate whether it is opened toward, away from or across the path.
4. Mark every turn, pinch point, dead end, threshold, stair, level change and likely stopping point.
5. Add the carried item or mobility device at the point where it matters most.
6. Add the return route if the task involves a bin, laundry, plate, package or tool.
7. Count distance, turns, doors, stairs, crossings and privacy exposures.
8. Record what is unknown and who must verify it.

Use a route log rather than relying on the drawing. This makes the comparison auditable:

The numbers in this table are illustrative placeholders for the method, not measurements of an actual house. Replace them with your plan's measurements. The point is to compare like with like. If a route's endpoint moves between plans, state that explicitly; otherwise the shorter number may reflect a different task.

Measure distance without overclaiming precision

At schematic stage, record route distance to the nearest foot or half meter unless the plan supports more precise measurement. A line along the center of a hallway is only a proxy for effort. It does not include opening a heavy door, yielding to another person, lifting a bag, stopping at a counter, turning a stroller or recovering from a stair. Use distance as one input, never as the verdict.

A useful route burden worksheet is:

route burden = normalized distance + turn penalty + door penalty + level-change penalty + task penalty + privacy penalty

Set the penalties before looking at the winner. For example, you might use 1 point per normalized 10 feet, 2 points per 90-degree turn, 3 points per door that must be operated while carrying, 8 points per stair flight, 4 points for a privacy exposure, and 5 points for a route that requires setting an item down. These are homeowner-defined values, not research findings or code values. If a family chooses different values, the result should change transparently.

The Sage study on indoor walkability demonstrates why explicit inputs are useful: its BIM-enabled method considers metric distances between rooms, number of turns, spatial depth and vertical access when comparing design alternatives for elderly housing. The peer-reviewed walkability study supports the idea of recording these variables; it does not supply a universal weighting formula for your home.

Test two-way and shared routes

A route that works for one person may fail when two household members meet. Mark the kitchen-to-dining route during meal service, the entry-to-laundry route during a departure rush, and the hall outside a bathroom when someone is waiting. Note whether one person can step aside without entering a private room, opening a closet, blocking a stair or moving a hot pan.

Test the plan with realistic objects. A basket, a grocery bag, a child, a dog, a walker and a vacuum are not infinitely thin dots. Mark their approximate footprint and the direction in which they are carried. If furniture is not yet selected, use the largest dimension the household expects and mark it as an assumption. A drawing can show a clear centerline while the real action happens near wall edges, cabinet handles and door swings.

Interpret route failures

Classify a failure before proposing a fix:

Do not convert every concern into “make the hall wider.” Sometimes the better answer is to move the destination, rotate a door, add a second route, relocate storage or eliminate a stair-dependent task. A route is a relationship among spaces and actions.

The next decision is whether the route problem is caused by movement itself or by the storage handoff. Trace storage next, because a good corridor can still produce a bad home if every item is put away in the wrong place.

Compare storage as a sequence of handoffs #

Storage is best compared as a handoff from arrival or purchase to use, cleaning, replenishment and return—not as a total number of closets or a square-footage contest. Record where an item enters, where it is used, where it is cleaned or charged, where its waste goes, and where it is put back. A smaller plan can outperform a larger one if its storage sits on the routes the household actually uses.

Make a storage inventory

Create one line per item group. Group only items that share a real storage behavior. “Kitchen things” is too broad; “daily plates,” “large serving pieces,” “small appliances,” “bulk beverages,” and “recycling containers” are better groups.

Add “who puts it away” and “what happens when the usual storage is full.” Storage failure often comes from the exception: the wet coat, the dirty sports kit, the box waiting for recycling, the stroller that cannot be folded, or the mobility device that needs charging. If the plan has no place for the exception, the object migrates into circulation space.

Score the storage handoff, not the closet count

For each item group, trace five points:

1. Arrival: where the item enters the home.
2. Staging: where it can safely wait while hands are occupied.
3. Use: where it is opened, worn, prepared, charged or consumed.
4. Reset: where it is cleaned, folded, packed, repaired or reloaded.
5. Return: where it goes after use, including trash, laundry, recycling or seasonal storage.

Plan A may have a larger pantry but force groceries through the living room. Plan B may have a smaller pantry adjacent to the garage, with a second everyday shelf near the cooking surface. The better plan depends on the household's inventory, frequency and willingness to make two trips. Record both routes and the number of handoffs.

Use this simple storage score for each item group:

storage burden = arrival distance + use distance + reset distance + return distance + access penalty

The access penalty can reflect high shelves, narrow reach, a door that must be held open, a stair, a threshold or a storage point that blocks a route when open. Choose the penalty scale in advance. For a low-risk item stored once per season, a high shelf may be acceptable. For daily plates or medication, the same shelf may be a poor fit. A score is not a determination of a person's capability; ask the person who will use it.

University of Kentucky Cooperative Extension lists easy-access kitchen storage such as pull-out shelves and adjustable-height cupboards, and bedroom closets with rods reachable from standing or sitting positions. Its home-accessibility guide is useful for generating questions about reach and access. It does not require a particular cabinet type in every home, and it does not tell you whether a specific plan has enough storage.

Check storage at the point of use

Mark the items that should be reachable without crossing a room or opening a second door. Examples include:

• everyday dishes near the dishwasher and dining route;
• coats, shoes, bags and keys at the arrival route;
• towels and toiletries near the bathroom's actual use zone;
• linens near the bedrooms they serve;
• cleaning supplies near the rooms they clean, with child and hazard controls;
• laundry baskets where clothes are removed and where clean clothes are returned;
• charging space near the entry for mobility devices, phones or tools;
• bins where food is prepared but without narrowing the work route;
• tools and maintenance supplies near a serviceable access point;
• guest items accessible without exposing private rooms.

“Near” is not enough. Put a route arrow from the point of use to the storage location, then a second arrow for replenishment. A pantry behind a door may be near the kitchen on paper and inconvenient while the door is open, another person is cooking, and both hands are occupied. A linen closet in a hall may serve two bathrooms efficiently or may create a collision point at night. Record the open-door condition.

Check reach, visibility and sequence

Storage has a vertical dimension. Record whether the household must bend, kneel, climb, reach over a counter, reach across a deep shelf, or use a step stool. If future mobility is part of the brief, identify which items need seated access, which can be moved lower later, and which storage geometry would make that change possible.

The University of Illinois Aging in Place House is a conceptual design that intentionally avoids hard-to-reach storage and describes a home that can be adapted as bodies and household needs change. The Illinois design project is not a code standard or proof that a particular storage layout performs well. Use it to ask: “Which storage depends on a reach or balance ability we may not always have, and can the plan change without rebuilding a wall?”

Visibility matters too. A storage space that exists but is hidden behind a closed door may be underused. On the other hand, visual openness can conflict with privacy or clutter control. Include the household's real behavior in the brief. If a family will leave school bags at the first landing, design and score a safe landing zone rather than pretending the bags will always reach a remote closet.

Test overflow and maintenance

New plans often show storage at move-in, not storage after ownership begins. Reserve space for filters, replacement lamps, cleaning equipment, seasonal items, spare bedding, tools, waste sorting, packages, sports gear and future equipment. Keep maintenance access separate from decorative storage when systems need professional service. A tight utility closet can make an otherwise good plan difficult to own, but its final access depends on equipment selections and service clearances that the relevant designers must coordinate.

Do not use this guide to specify electrical outlets, ventilation, structural supports or mechanical clearances. Mark the need and hand it to the architect and relevant trade. A homeowner can identify “the vacuum has no safe home” or “the heat-pump filter route crosses the bedroom,” while a qualified professional determines the design and installation requirements.

Interpret storage tradeoffs

Use these questions when Plan A has more total storage and Plan B has better handoffs:

• Is the extra storage genuinely accessible, or is it over stairs, behind a collision point or at an impractical reach?
• Does the compact plan put everyday items closer while leaving seasonal items farther away?
• Does a pantry door open into the main work route?
• Does the mudroom absorb arrival clutter without becoming the only path to the garage?
• Can a person carrying laundry reach the hamper, washer, folding surface and bedroom route without stairs?
• Can a guest use a coat hook and bathroom without entering a private zone?
• Can a mobility device park or charge without narrowing an exit or blocking a route?
• Is the storage change architectural, cabinetry-specific, equipment-specific or behavioral?

The next decision is whether the preferred plan continues to work under defined mobility scenarios. Do not wait until a medical event or construction change to discover that a route depended on one person's current strength, balance, reach or speed.

Test accessibility and future mobility without claiming code #

Treat accessibility as a set of household scenarios and professional questions, not as a binary label that can be awarded from a floor-plan screenshot. Test the routes and rooms against the actual person, device, transfer, assistance pattern and site approach; then ask the architect and the actual AHJ which rules apply. Voluntary adaptable design may improve future options, but it does not become an approval merely because it resembles an accessibility standard.

Separate three different questions

Ask these separately:

1. Could this household use the plan today? This is a household-fit question.
2. Could the plan be adapted later without disproportionate demolition? This is an adaptability question.
3. Does a federal, state, county, city, tribal or other requirement apply? This is a jurisdiction and project-type question.

The answers can differ. A plan may be comfortable today but difficult to adapt because the only bedroom is upstairs. A plan may have a main-floor bedroom but a steep site approach. A multifamily project may be subject to federal Fair Housing design-and-construction requirements while a detached single-family project is governed by a different combination of state and local requirements. Because your project's location and housing type are not supplied, this guide does not state a local rule.

The Access Board's ADA Standards state that residential dwelling units required to provide mobility features have an accessible route connecting spaces and elements, and that where only one route is provided it cannot pass through a bathroom, closet or similar space. The cited standard also addresses turning space in rooms on that route. Read the residential dwelling-unit provisions in Chapter 8. Keep that condition in every note: “when required to provide mobility features.” It is not permission to label every preliminary detached-home plan “ADA-compliant” or “noncompliant.”

Choose scenarios before looking at results

Define at least four scenarios. Include the current household and only future scenarios that are plausible enough to affect design. A scenario is not a diagnosis and should not predict a person's health. It is a design test.

Ask the person who will use the route what “works” means. One person may need a straight approach to a seat; another may need a turning space for a scooter; another may prioritize a private route that avoids the living room. Do not force one mobility scenario to stand for everyone.

Use clearances as prompts, not universal rules

The Access Board describes clear floor spaces and turning spaces as building blocks in the ADA Standards. Its guide says turning space can be circular or T-shaped, notes a 60-inch minimum dimension for the circular form in the cited standard, and explains that maneuvering varies by mobility aid; it also recommends turning space in some small or dead-end conditions to reduce backing. See the Access Board turning-space guidance.

Use these principles to mark questions:

• Where would the device need to turn, not merely pass?
• Does a cabinet, sink, toilet, appliance or open door occupy the turning area?
• Is the apparent turning area actually blocked by a wall, trim, radiator, furniture, handrail or equipment?
• Does the device need a three-point turn rather than a pivot?
• Is backing into a dead end unavoidable?
• Can another person assist without standing in the path?
• Does the door swing remove the place where the user would wait?
• Can the user approach the fixture from the needed side?

The Access Board guide says turning space may overlap some other clearances, but the shape and overlap conditions matter. Do not redraw a generous circle over every object and call the room tested. Mark the object, the approach and the user's direction of travel. The architect should coordinate final dimensions, hardware, fixtures and details.

University of Kentucky guidance describes three-foot-wide passageways connecting main-floor rooms, 36-inch entry doors, 34- to 36-inch interior doors and 42- to 48-inch hallways as accessibility-oriented home guidance. The University of Kentucky extension publication can help a homeowner create a question list, but those figures are not a universal single-family code and do not substitute for the dimensions adopted by the project's jurisdiction. Put the source, scope and verification owner beside any number you use.

Test rooms, not just halls

Common comparison errors happen inside rooms:

Bedroom. Mark the bed at the intended size, nightstand, closet door, dresser, window operation and route to the bathroom. Test both sides of the bed if that matters to the household. A bedroom can have a wide entry and still fail because the bed blocks the only approach to the closet or because a caregiver cannot stand on the required side.

Bathroom. Mark the actual fixture arrangement, door swing, transfer side, towel storage, vanity depth and route from the bedroom. Do not assume a larger bathroom is more usable; the fixture arrangement and approach may matter more. Ask a qualified professional about bathing, grab-bar reinforcement, waterproofing, electrical and plumbing coordination. Do not remove walls, move fixtures or install supports based on a remote article.

Kitchen. Trace refrigerator-to-prep, prep-to-cook, cook-to-dining, dishwasher-to-storage and trash routes. Include an open dishwasher, oven, refrigerator door and pantry door. The Access Board's residential provisions reference kitchen requirements when mobility features are required, including clear floor space at appliances and storage provisions in the cited standard. The Access Board's Chapter 8 kitchen and residential provisions are a source to discuss with the designer, not an automatic detached-home specification.

Laundry. Test dirty-clothes arrival, machine loading, folding, hanging and return to bedrooms. A laundry room located near bedrooms may reduce distance but increase noise; a remote laundry may improve privacy or service access but create a stair-dependent task. Record the tradeoff rather than choosing a universal answer.

Entry. Test the weather path, threshold, coat storage, package staging, seating, lighting, keys, shoes, mobility device and visitor interaction. If the primary entry is reached over a slope or stairs, an interior route score cannot answer the whole accessibility question. The civil designer, architect and AHJ must address site approach and local requirements.

Test adaptability as an option value

Adaptability is the value of preserving a future choice. Mark rooms and routes that can change without moving the structure, wet walls, major stairs or only bedroom. The University of Illinois concept describes a fully accessible house that can be adapted over a lifetime, avoids hard-to-reach storage and minimizes flooring transitions. The Illinois Aging in Place House is a concept, not proof of performance, but it suggests practical prompts:

• Could a main-floor room become a bedroom or office without losing the only living space?
• Is a nearby bathroom arranged so future equipment or assistance can be considered by the designer?
• Can storage be lowered, opened or reorganized without demolishing a wall?
• Can a route remain continuous if furniture, a walker or a caregiver is added?
• Are thresholds, floor transitions and doors documented early enough to coordinate?
• Does the plan preserve an alternate route if one room changes use?

A peer-reviewed study of adaptable apartment layouts examined rearrangements by end users and included cases where kitchen changes altered the apartment's layout or circulation. The Journal of Housing and the Built Environment study supports documenting adaptability as a real design concern, but it does not establish that one U.S. custom plan will adapt successfully. Treat adaptability as a scenario and ask the architect which future changes are physically and financially plausible.

Safety boundary for remote comparison

The homeowner can trace, measure household items, identify a route, and list a concern. A qualified professional should determine structural changes, stair geometry, ramps, guardrails, electrical work, plumbing relocation, wet-area construction, wall reinforcement, load-bearing changes, equipment clearances and code compliance. Do not climb onto roofs, open electrical panels, enter confined spaces, remove finishes, test stairs with a device, or modify a plan based only on this article. If a household member has an immediate mobility or fall risk, use the relevant clinician or qualified home-assessment professional for the person's situation.

The next decision is how to balance route, storage, privacy and adaptability when no plan wins every category. Use weights that are written before the result and then challenge the result with sensitivity.

Score the plans with an illustrative weighted matrix #

Use a weighted matrix only after the route, storage and mobility observations are recorded. The matrix makes priorities visible; it does not make a subjective design decision objective or produce a code result. Score each plan against the same criteria, record evidence for every score, and test whether a reasonable change in weights reverses the result.

Define criteria and weights

Start with five or six criteria that map to the reader's decision:

These weights are illustrative. A household with a current wheelchair user may assign future mobility and current usability far more weight. A multigenerational household may assign caregiver routes and privacy more weight. A small urban lot may assign storage handoffs more weight because exterior or garage storage is limited. Write the rationale beside each weight before entering scores.

Score on an evidence scale

Use a 0-to-5 scale:

• 0: fails a non-negotiable requirement or cannot be made workable within the stated brief;
• 1: major unresolved failure, with a high-impact change likely;
• 2: several material concerns or unknowns;
• 3: workable with ordinary coordination or a documented compromise;
• 4: strong fit with limited concerns;
• 5: strong fit supported by the recorded route, item and scenario tests.

Do not award a 5 for a plan that has not been dimensioned or checked. Use “unknown” before score if the missing information is material. If the spreadsheet requires a number, use the conservative score and mark it provisional rather than treating unknown as neutral.

Calculate:

weighted points = (criterion score ÷ 5) × criterion weight

total plan score = sum of weighted points

The weights sum to 100, so the total is out of 100. This is a communication device, not a measure of home quality. Preserve the raw scores and evidence notes so someone can challenge the inputs.

Worked illustrative example

Assume a fictional household is comparing Plan A and Plan B. It has two adults, one child, frequent garage entry, a full laundry basket, a guest who should reach the powder room without crossing bedrooms, and a plausible future walker scenario. The plan PDFs are both scaled, but Plan B's pantry depth and Plan A's bedroom furniture are not yet coordinated. The example below is modeled and illustrative; it is not a measured result, quote, professional opinion or prediction.

Plan B leads 70 to 58, but the result is not “Plan B is best.” It says the stated weights and provisional scores favor B. Plan A's shorter daily routes could still matter more if storage can be moved cheaply and privacy is less important. Plan B may lose if the alleged main-floor route depends on a step, a tight bathroom or an unverified door swing.

Show the formula and unit conversions

For a route comparison, keep units consistent. If Plan A is 44 feet and Plan B is 14 meters, convert before comparing. One foot equals 0.3048 meters exactly for this calculation, so 14 meters is approximately 45.9 feet. Do not mix the units in a spreadsheet. For a storage footprint, record width × depth in inches or millimeters, and keep the same unit in both plans.

For the example above, the daily-circulation score could be built from four subtests:

daily circulation score = 5 − (normalized route burden ÷ maximum allowed burden × 5)

That formula is only useful if “maximum allowed burden” is defined by the household before scoring and the result is bounded between 0 and 5. A simpler approach is to score the observed evidence directly. Avoid false mathematical precision such as 3.714 when the underlying route count and door assumptions are approximate.

Run sensitivity cases

Sensitivity asks whether the decision survives plausible changes. Run at least three cases:

Case 1: current-routine emphasis. Increase daily circulation and current usability; reduce future mobility if no one currently needs it. If Plan A wins, record that the decision is priority-sensitive.

Case 2: future-mobility emphasis. Increase future mobility, current usability and changeability; test the actual scenario rather than an icon. If Plan B still wins, its advantage is more robust under that assumption.

Case 3: unknowns resolved against each plan. Give each plan the conservative score for dimensions not yet verified. If the result reverses, do not choose; request the missing dimensions.

Example sensitivity table:

The numbers are illustrative and intentionally show that the winner can change. A close score is not a failure of the worksheet. It is a signal that the household has an unresolved priority, a high-impact unknown, or a change that should be priced and drawn.

Use vetoes for non-negotiables

Weighted scores can hide a deal-breaking failure. Define vetoes before scoring, such as:

• a necessary daily route requires stairs with no acceptable alternative;
• the only guest bathroom route crosses a private bedroom and the household rejects that;
• the mobility scenario cannot reach the essential bedroom, bathroom or exit after the architect's first test;
• required storage for a safety-sensitive item has no workable location;
• the plan requires a structural or site change that exceeds the project brief;
• the plan cannot be verified because the source drawings are inconsistent.

A veto is not a code conclusion. It is the household saying “this plan is not acceptable for our brief unless the following change is made.” Record the reason and who must verify any technical consequence.

Check for scoring errors

Before believing the result, ask:

• Were the same destinations used on both plans?
• Were furniture and item sizes equivalent?
• Were stairs, doors, thresholds and open-door conditions counted on both plans?
• Did a score rely on an unverified dimension?
• Were weights written before the totals were visible?
• Did one person score both plans without a second review?
• Did total square footage or visual appeal sneak into a criterion?
• Are the cited accessibility numbers being treated as local code?
• Did the score ignore the site entry, grade, exterior route or service access?

The next decision is whether the numerical result reflects a real household preference or hides a privacy conflict. Compare public, private, service and quiet zones before asking the architect for revisions.

Resolve privacy, noise, and room relationships #

The preferred plan must work socially as well as geometrically: residents should be able to move between rooms, receive visitors, sleep, work, care for others and service the house without unwanted crossings. Privacy is not a decorative preference; it changes whether people will use the route the plan appears to provide.

Map the zones

Color the plan into four zones:

• Public: entry, living, dining, guest powder room and outdoor entertaining;
• Private: bedrooms, personal baths, dressing, retreat and quiet work;
• Service: garage, pantry, laundry, mudroom, mechanical, waste and maintenance access;
• Flexible: office, playroom, guest room or room that may change over time.

Then draw the routes that connect zones. Ask whether guests can reach a bathroom without entering private rooms, whether deliveries can reach a staging point without crossing the living room, whether laundry can serve the bedrooms without crossing a quiet work zone, and whether a caregiver can reach a bedroom and bathroom without exposing the resident to unnecessary traffic.

A study comparing floor-plan preferences among architects and non-architects found different evaluation lenses in a Czech apartment sample. The study reported that non-architects paid substantial attention to practical access and privacy, while architects more often evaluated functional zoning, proportions and spatial relationships. The floor-plan preference study does not predict your household or American preferences, but it is a useful warning: a professional and a homeowner can look at the same plan and value different relationships.

Test sight lines and sound paths

On the plan, mark what a visitor sees from the entry, dining table and main seating position. Mark bedroom doors, bathroom entries, laundry, dishes, bins and work surfaces. Then note sound paths: entry to bedroom, kitchen to office, laundry to sleeping rooms, bathroom to living room and mechanical equipment to quiet rooms. A line of sight is not an acoustic test, and a wall is not a guarantee of privacy. The point is to identify questions for the architect and acoustic or building professionals where needed.

Compare door positions and the direction of travel. A bedroom at the end of a public hall may be private once the door is closed but exposed whenever it opens. A bedroom accessed through a living space may be physically short and socially uncomfortable. A powder room beside a dining table may be convenient but may need a different door relationship or acoustic treatment. Record the household's threshold, not a generic rule.

Compare directness with separation

Direct access is not always the same as good access. In the preference study, non-architect participants rejected some walk-through relationships and prioritized direct access from the entry hall to rooms, while architects in that case preferred stronger functional zoning and a separated private zone. The conflict is instructive but not universal. Ask the household to rank these tradeoffs:

1. Direct route from entry to every essential room.
2. Separation of private rooms from visitor traffic.
3. Central living space connected to daily activities.
4. Short service route from garage or delivery point.
5. Quiet separation for sleep and focused work.
6. Visibility for caregiving, supervision or household connection.

If two people rank them differently, do not average away the disagreement. Put both priorities into the matrix and see where the plan needs a design solution. A half wall, a shifted door, a second circulation path, a small vestibule, a change in room adjacency or a different storage location may resolve a conflict more efficiently than adding square footage.

Consider guests and care together

Many plans have a normal-day route and a care route. Test a guest using the powder room, a delivery person leaving a package, a child seeking a caregiver, and a caregiver bringing clothing or medication. Ask which users should share a route and which should not. A plan that hides every bedroom can make caregiving difficult; a plan that exposes every bedroom can reduce dignity. The right answer belongs to the household and may change over time.

When the household may include a caregiver, define the task rather than the label. “Caregiver access” could mean bringing a meal, helping with bathing, transferring someone, checking a child at night, or moving equipment. Each has different route, privacy, turning and storage implications. Do not infer clinical suitability from a floor plan. Bring the actual task to the relevant professional.

Record acceptable compromises

No plan avoids every crossing. Record a compromise with an owner and a trigger:

The next decision is not simply “A or B.” It is which plan, or which hybrid revision, resolves the highest-consequence conflict with the least uncertain redesign. Prepare the professional handoff with that question.

Hand off a documented decision to the architect and AHJ #

The best comparison ends with a short, traceable design brief: preferred plan or hybrid direction, non-negotiables, route evidence, storage inventory, mobility scenarios, privacy constraints, unresolved dimensions, proposed changes, and questions for the actual AHJ. Do not send only a screenshot with circles; send a record that lets the architect respond line by line.

Create the decision record

Use this one-page opening summary before the detailed markups:

Project and jurisdiction

• Project address or parcel identifier: ____________________
• State: ____________________
• County: ____________________
• City, town, township or tribal authority: ____________________
• Building department or other AHJ contact: ____________________
• Housing type and expected occupancy: ____________________
• Current plan revisions compared: ____________________

Decision

• Preferred direction today: Plan A / Plan B / hybrid / unresolved
• Reason in one sentence: ____________________
• Non-negotiable route or privacy requirement: ____________________
• Highest-impact unknown: ____________________
• Next decision date or design milestone: ____________________

People and routines

• Residents and likely future users: ____________________
• Essential daily routes: ____________________
• Carried or pushed items: ____________________
• Storage groups and point-of-use needs: ____________________
• Mobility scenarios tested: ____________________
• Privacy and quiet requirements: ____________________

This is a homeowner worksheet, not an official inspection, legal document, permit submittal, or accessibility certification. Do not represent it as one when sending it to a professional.

Send line-by-line change requests

Phrase each request as observation, consequence, question and owner:

1. Observation: “R03, laundry-to-bedroom route crosses one stair in Plan A.”
2. Consequence: “The route carries a full hamper and is a concern under the temporary walker and future mobility scenarios.”
3. Question: “Can the laundry move to the bedroom level, or can the main-floor room be planned as a future laundry/bedroom option? Please show alternatives and identify any structure, plumbing, ventilation or cost effects.”
4. Owner: “Architect to propose; engineer or trade to verify discipline-specific impacts; homeowner to choose after comparison.”

For storage: “S04, daily dishes are stored across the main cooking route in Plan A; please test a point-of-use cabinet or alternate pantry handoff and show the open-door condition.” For privacy: “P06, guests reach the powder room through the bedroom threshold; please test a shifted door or public-zone route without claiming compliance.” For mobility: “M02, the main-floor bathroom is the only candidate for the future scenario; please add coordinated fixture, door and turning dimensions and identify what the AHJ must confirm.”

Ask the architect for the right deliverables

Request these at the next design review, scaled to the stage:

• revised plan PDFs with revision date and scale;
• dimensions of the routes and rooms that control the decision;
• furniture and equipment blocks for the actual household items;
• door swings, clear openings and thresholds where they affect a test;
• storage elevations or cabinet assumptions where reach matters;
• a main-floor or alternate-level scenario if future mobility is a stated priority;
• a list of open design, structural, mechanical, electrical, plumbing and site questions;
• a change-impact note for each proposed revision;
• the professional's statement of what is still schematic and what has been verified.

Do not ask the architect to certify “accessible” based on a generic label. Ask which scenario was tested, what dimensions were used, which requirements were considered and what remains for the AHJ. If the project requires a specialist, ask that person to review the actual user and device needs rather than a stock symbol.

Ask the actual AHJ focused questions

Because no project jurisdiction is supplied, the relevant AHJ must be named by the homeowner. Ask:

• Which state, county, city, township, tribal or other authority reviews this project?
• Which building, residential, accessibility, zoning, life-safety and site requirements has that authority adopted for this project type?
• Does the project have a multifamily, public, assisted-living, mixed-use, funding or other classification that changes the applicable accessibility review?
• Are there local site, grade, entrance, egress, parking, flood, historic-district or zoning conditions that affect the route?
• At what submission stage will the authority review the relevant dimensions or features?
• What documents, interpretations or pre-application meetings should be retained?

Use the answer only for the named jurisdiction and project classification. Do not turn a building official's answer into a national rule. A state accessibility requirement may differ from a city adoption or from a federal program condition; the professional team must reconcile them for the actual project.

Verify the decision at the next revision

Verification is a loop, not a final glance:

1. The homeowner submits the marked routes, item sizes, storage inventory, scenarios, weights and non-negotiables.
2. The architect issues a revised plan or explains why a requested change cannot be made.
3. The homeowner retraces every affected route on the new revision.
4. The architect or relevant specialist verifies dimensions, details and discipline interfaces.
5. The homeowner reruns the matrix and sensitivity cases, preserving prior results.
6. The team sends scoped questions to the actual AHJ where a rule, classification or site condition is uncertain.
7. The homeowner records the selected direction, unresolved risks, next owner and next review date.

Never mark a route “verified” just because a designer agreed it felt better. Define verification: dimension checked on the named revision; item footprint shown; door and fixture conditions coordinated; scenario tested; professional question answered; AHJ response retained if applicable. If none of those occurred, write “observed concern” or “open question.”

Common failure cases and recoveries

Failure: comparing different revisions. Recover by obtaining a coordinated set and preserving the old versions for reference.

Failure: tracing a centerline only. Recover by adding door swings, furniture, carried-item footprints, open appliances and two-person conditions.

Failure: counting closets. Recover by tracing arrival, staging, use, reset and return for each important item group.

Failure: treating every number as code. Recover by labeling the source scope, identifying the actual jurisdiction and asking the architect/AHJ which requirements apply.

Failure: using a generic wheelchair symbol. Recover by recording the actual device or scenario and requesting a professional test of the relevant rooms and routes.

Failure: optimizing only for distance. Recover by adding privacy, door operation, level changes, carrying, stopping and return trips.

Failure: choosing weights after seeing the score. Recover by rerunning the matrix with weights written before totals, then show the sensitivity range.

Failure: treating adaptability as a future promise. Recover by naming the specific future change, location, route, demolition risk and professional check needed.

Failure: asking the builder to solve a schematic route issue in the field. Recover by resolving the brief and plan with the architect before construction documents and pricing. Structural, electrical, plumbing, stair, ramp and wet-area changes belong to qualified professionals.

Failure: overlooking the site approach. Recover by extending the route from parking, sidewalk, driveway or drop-off to the actual entry and asking the civil designer, architect and AHJ about grade and site requirements.

Make the final choice explicit

At the end of the comparison, write one of four outcomes:

• Choose Plan A with changes: list the three highest-priority revisions and their owners.
• Choose Plan B with changes: list the same.
• Create a hybrid: identify the source of each borrowed relationship and ask the architect to test whether the combination creates new conflicts.
• Do not choose yet: list the missing dimensions, site facts, user information or authority answers that block the decision.

Do not choose “Plan B because it scored higher” without naming the evidence and sensitivity. The decision record should let a future reader understand what mattered and what could change the choice. That protects the homeowner from restarting the comparison after every new drawing and helps the architect spend the next design hour on the highest-value uncertainty.

Use the Floor-Plan Decision Surface as your repeatable worksheet #

The Floor-Plan Decision Surface is complete when it links a household routine to a route, a route to a storage or mobility condition, a condition to evidence, and evidence to a next action. Use it for every serious plan revision, but preserve the original inputs so the comparison remains reproducible.

Surface A: plan and household inputs

Surface B: route record

Repeat the table for every plan. If a field cannot be measured, write “not shown” and identify the person who must resolve it. Never carry a measured value from Plan A into Plan B unless the feature is demonstrably identical.

Surface C: storage-handoff record

If a storage location is shared, note the competing uses. A mudroom cabinet may hold coats, cleaning supplies, packages and a mobility device; the plan needs a sequence that does not block the entry when all four occur.

Surface D: scenario verification

Keep “result” descriptive. Write “turn not demonstrated at bathroom entry” rather than “fails accessibility.” Write “bedside approach not shown” rather than “not compliant.” The first wording identifies a design task; the second claims a conclusion you may not be authorized to make.

Surface E: score and sensitivity

Write the formula beside the table: (score ÷ 5) × weight. Then repeat under at least three weight scenarios. Attach a veto list for non-negotiables so a high score cannot conceal a deal-breaking route or privacy failure.

Surface F: handoff and next decision

Your final page should answer: “What do we want the architect to draw next, what must the AHJ or specialist clarify, and what would make us change the preferred plan?” If it cannot answer those questions, the worksheet is not finished.

What this method can and cannot establish

It can establish that one plan has fewer traced turns for a named route, that a storage group is farther from its point of use, that a privacy crossing exists on the marked revision, or that a weighted result changes when the household's priorities change. It can expose missing dimensions and make a professional meeting more efficient.

It cannot establish that a home is accessible to every person, that a plan complies with a local rule, that a future device will fit, that a route is safe under all conditions, that a wall can be moved, that a builder can price a change, or that an adaptation will be affordable. The Access Board, HUD/DOJ, university sources and research studies each have a defined scope; none converts a homeowner worksheet into a permit or certification.

If the result is close, that is useful. Ask the architect to develop the smallest set of revisions that could change the outcome, then retrace those revisions. If the result is decisive but rests on unknown dimensions, the next decision is verification, not commitment. If one plan wins across the base and sensitivity cases and its high-priority routes are professionally checked, record the choice and move into coordinated schematic design.

The handoff is complete when the homeowner, architect, relevant specialists and actual AHJ know which questions belong to them, what evidence supports the current direction, what remains uncertain, and when the next decision will be made.