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Compliance January 27, 2026 7 min read

ADA Parking Lot Compliance For Arizona Properties

Stall counts, access aisles, slope tolerances, signage heights, and the details that draw complaints. What Arizona commercial property owners need to verify before their next restriping or resurfacing project.

ADA parking compliance is one of the few pavement issues that carries legal exposure rather than just a maintenance cost. Most Arizona properties that receive complaints are not ignoring the law. They restriped over an old layout, resurfaced without rechecking slopes, or added a tenant that changed the required stall count.

In This Article

01

Counts And Layout

Required accessible stalls scale with total parking count, and at least one in every six accessible stalls must be van accessible with a wider access aisle.

02

The Slope Problem Nobody Checks

Accessible stalls and access aisles must not exceed a two percent slope in any direction.

03

Signage, Ramps, And Detectable Warnings

Each accessible stall needs a sign mounted so the bottom edge is at least sixty inches above the finished surface, with van accessible stalls identified as such.

04

When To Review Compliance

Review before any restriping, before any resurfacing, when a tenant mix changes the parking count, and any time a complaint arrives.

Counts And Layout

Required accessible stalls scale with total parking count, and at least one in every six accessible stalls must be van accessible with a wider access aisle. Accessible stalls must sit on the shortest accessible route to the entrance they serve, and where a lot serves multiple entrances the stalls have to be distributed rather than clustered at one door.

Access aisles must be marked, must connect to an accessible route without requiring travel behind parked vehicles, and cannot be blocked by cart corrals, bollards, or landscape islands added after the original build.

The Slope Problem Nobody Checks

Accessible stalls and access aisles must not exceed a two percent slope in any direction. This is the single most common failure we find in the Valley, and it is usually created by a resurfacing project that added material without regard for the resulting cross slope, or by settlement around a drain.

Slope is measured, not estimated. A lot that looks flat can fail. When we resurface an area that includes accessible parking, verifying the finished slope is part of the scope rather than an extra.

Signage, Ramps, And Detectable Warnings

Each accessible stall needs a sign mounted so the bottom edge is at least sixty inches above the finished surface, with van accessible stalls identified as such. Curb ramps serving the accessible route need compliant running slope, flared sides where pedestrians cross them, and detectable warning surfaces at the transition to the drive aisle.

American Asphalt handles pavement side compliance end to end, from handicap ramps and ADA access through striping, signage, and ADA compliance layout.

When To Review Compliance

Review before any restriping, before any resurfacing, when a tenant mix changes the parking count, and any time a complaint arrives. Restriping is the cheapest moment to correct a layout, because the alternative later is saw cutting and reconstruction to fix slope.

Our two year workmanship warranty applies to ADA work the same as everything else we build.

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