ADA Parking Lot Striping
In Fairfax, VA

ADA Parking Lot Striping in Fairfax, VA

Accessible parking carries a lot’s clearest legal exposure, because almost every element is specified as a number rather than left to judgment. Space count, stall and aisle width, running slope, and sign height are all fixed. When they bind depends on the work: new construction and alterations must meet the standards outright, while an untouched existing lot owes readily achievable barrier removal.

Two layers apply in Fairfax. The federal layer is the 2010 ADA Standards for Accessible Design, which sets the counts and the dimensions. The Virginia layer sits on top of it and is where most out-of-state guidance stops being reliable for a property here.

We install and restripe accessible spaces, access aisles, ISA symbols, and the required signage across Northern Virginia, and on every job the count and the dimensions are verified against the standards before any paint is applied rather than copied from what happens to be on the ground.

How Many Accessible Spaces Your Lot Needs

The required number comes from a scoping table keyed to the lot’s total spaces, not from a flat percentage. Two tables can apply to a Fairfax property and they are not identical, so read this section twice.

The federal table, from the 2010 ADA Standards, is the floor:

Total spaces in lot	Minimum accessible spaces (federal)
1 to 25	1
26 to 50	2
51 to 75	3
76 to 100	4
101 to 150	5
151 to 200	6
201 to 300	7
301 to 400	8
401 to 500	9
501 to 1,000	2 percent of the total
1,001 and over	20, plus 1 for each 100, or fraction thereof, over 1,000

Virginia Construction Code Chapter 11 then splits the requirement into two tables by occupancy group, and for most commercial property it asks for more. Assembly, business, educational, mercantile, hotel, multifamily, and institutional occupancies — retail centers, office parks, schools, hotels, apartment communities — use Table 1106.2(1):

Total spaces in lot	Virginia Table 1106.2(1)	Federal
126 to 150	6	5
151 to 200	7	6
201 to 300	8	7
301 to 400	9	8
401 to 500	10	9
501 to 1,000	2.33 percent	2 percent
1,001 and over	23, plus 1 per 100	20, plus 1 per 100

Factory, storage, high-hazard, and utility occupancies use Table 1106.2(2), which tracks the federal numbers — so a warehouse and the retail center next door can owe different counts on identical stall totals.

On top of whichever count applies, at least one of every 6 accessible spaces, or fraction of 6, must be van-accessible. A lot with 4 accessible spaces needs 1 van-accessible space; a lot with 7 needs 2.

Two more things. Where a site has more than one parking facility, the count is calculated separately for each — both the federal standards and the Virginia code say so explicitly — which usually raises the total. And medical, rehabilitation, and outpatient facilities are scoped higher than the general table.

Accessible Stall and Access Aisle Dimensions

An accessible space is a car space plus an access aisle, and the aisle is not optional decoration — it is the space someone needs to deploy a ramp or open a door fully and transfer.

A standard accessible car space is a minimum of 96 inches wide. The access aisle beside it is a minimum of 60 inches wide and must run the full length of the space it serves.

Van-accessible spaces can be built two ways. Either the space is 132 inches wide with a 60-inch access aisle, or the space is 96 inches wide with a 96-inch access aisle. Both satisfy the standard, and the choice usually comes down to the geometry available.

Two access-aisle rules save a great deal of space in practice. Two accessible spaces may share a single access aisle between them. And the aisle must be marked so that it is visibly not a parking space — hatching is the conventional treatment, and its purpose is to stop the aisle being parked in, which is one way a compliant lot quietly stops functioning as one.

Surface slope is the requirement easiest to miss, because it is invisible in a photograph. Accessible spaces and their access aisles must not slope more than 1:48 in any direction, and the aisle must be at the same level as the space it serves.

Signage and Vertical Clearance

Every accessible space needs a sign bearing the International Symbol of Accessibility, and the mounting height is specified: the bottom of the sign must be at least 60 inches above the finished floor or ground surface. That figure is measured to the bottom edge, and it exists so the sign remains visible when a vehicle is parked in the space — a sign mounted at car-bumper height disappears the moment the space is occupied.

Virginia narrows that further: it sets a ceiling on sign height as well as a floor, and it requires specific wording on the sign. Both are set out under Virginia-Specific Accessibility Requirements below, and a sign built to the federal minimum alone can still fail on them.

Van-accessible spaces additionally require the designation “van accessible” on the sign.

Vertical clearance matters wherever van-accessible spaces sit under a structure. A van with a raised roof or a deployed rear lift needs genuine headroom, and the clearance has to be continuous along the whole route the van takes — entrance, drive aisle, space, and exit — not just at the space. A garage that provides a compliant space but has a low beam at the entry has not provided a usable one.

Virginia-Specific Accessibility Requirements

This is the layer that out-of-state guidance misses, and it is the reason a page written for another state is not safe to rely on here.

Accessibility in Virginia is enforced through the building code rather than only through federal law. The Virginia Construction Code, Chapter 11 carries the accessibility provisions that a Fairfax County building official actually applies, and it is the instrument that puts local enforcement behind the federal standards.

It does more than enforce them, though, and this is the part most out-of-state guidance gets wrong. Chapter 11 substitutes its own scoping tables, and for most commercial occupancies it asks for more accessible spaces than the federal table does — the tier-by-tier comparison is set out above. A lot striped to the federal minimum is not automatically compliant in Virginia. That is a count difference rather than a paperwork one, and it is worth settling before a plan review rather than after.

Separately, the Code of Virginia § 36-99.11 governs how accessible spaces are identified. It requires above-grade signs and states expressly that a symbol painted on the pavement does not constitute one, so a lot that has painted an ISA symbol on the asphalt and stopped there has not met the requirement, however clear the paint is. It also fixes the sign’s bottom edge between four and seven feet above the parking surface and requires the state’s penalty and tow-away wording. The symbol on the ground and the sign on the post do different jobs, and Virginia requires the sign.

The practical consequence is that a property can be fully compliant on federal dimensions and counts and still be deficient on both the Virginia count and the signage. Both are findings we report on lots we assess.