If you manage commercial property in Metro Atlanta, ADA parking lot compliance is something you’ve likely already dealt with—or something you’re about to. Whether you received a formal notice, a complaint triggered a review, or you’re assessing a property ahead of renovation, the requirements are more interconnected than most property managers expect. This guide covers what compliance actually requires, what gets missed, and what to do when your lot isn’t meeting the standard.
ADA Parking Lot Compliance Covers More Than a Ramp and a Sign
Most property managers who call about ADA work are focused on one element, usually a ramp or a faded accessible parking sign. The reality is that ADA parking lot compliance is a system. It involves the number and layout of accessible stalls, the accessible parking stall dimensions, the van-accessible space, the grade of the access aisle, the curb ramp, and the path of travel connecting the stall to the building entrance. Each element has its own standard. Correcting one without addressing the others doesn’t satisfy compliance, and it doesn’t reduce your legal exposure.
Accessible Parking Stall Requirements: What the Numbers Actually Mean
There are two distinct standards your accessible spaces need to meet: one for quantity and configuration, and one for the surface itself.
Space Counts and Van-Accessible Spaces
The ADA sets a minimum number of accessible parking spaces based on total lot size. A lot with 1 to 25 spaces requires at least one accessible stall, and that ratio scales up from there. Van-accessible parking space requirements are layered on top: for every six accessible spaces, at least one must be van-accessible. A van-accessible space requires either an 11-foot-wide stall with a 5-foot access aisle, or an 8-foot stall with a full 8-foot access aisle.
Grade and Surface Standards
Accessible parking stall dimensions aren’t the only consideration. The surface of each stall and its access aisle can’t exceed a 2% slope in any direction. That’s a stricter tolerance than most older lots were built to, and it’s not something you can evaluate by eye. Properties that were paved before accessible parking requirements tightened frequently have grade issues even when the spaces are properly striped. An accurate assessment checks slope with a level or digital gauge, not just a visual review of the paint.
ADA Curb Ramp Requirements: Slope, Material, and Truncated Domes
Curb ramp compliance involves three elements that each have to be right: the slope, the material, and the detectable warning surface at the base.
Slope Tolerances
ADA curb ramp requirements are where the technical standards get precise. The ADA caps the running slope of a curb ramp at 1:12, or 8.33%, with a maximum cross-slope of 1:48. Holding those tolerances consistently across the full ramp length is what separates a compliant installation from one that looks close but still fails a review.
Why Concrete Is the Standard Material
ADA ramp slope requirements demand tight grade tolerances that asphalt can’t maintain reliably. Asphalt can shift and settle over time in ways that gradually move a ramp out of compliance, even if it was installed correctly. Concrete can be formed and finished to meet grade specifications precisely, and it holds those tolerances over the long term. When ramp work is part of a remediation project, concrete is the right material, full stop.
Truncated Dome Requirements
Every compliant curb ramp requires truncated dome detectable warning surfaces at the base of the ramp where it meets the roadway or lot surface. These raised dome patterns allow pedestrians with visual impairments to identify the transition point between the ramp and the travel lane. Missing or worn truncated domes are a common citation item and part of every compliant ramp installation.
ADA Signage Requirements for Accessible Parking
ADA signage requirements are frequently treated as the easiest part of the compliance picture, but non-compliant signage is one of the most common findings in a property review. Every accessible parking space must have a sign mounted at least 60 inches above the ground, measured from the bottom of the sign to the surface. Van-accessible spaces require additional signs that identify them as such. Signs mounted too low, positioned where vehicles block them, faded past legibility, or simply missing don’t satisfy compliance even if the stall itself is correctly marked.
Properties that have been resurfaced or sealcoated without a corresponding signage review often have this gap. The lot may look fresh, but if the signs weren’t assessed and updated as part of that project, you can still receive a citation on signage alone.
Your lot may have more gaps than a single citation reflects. Ace Paving & Maintenance coordinates full ADA remediation across Metro Atlanta, with one point of contact managing the scope from assessment through completion
Are Older Properties Exempt from ADA Requirements?
The short answer is: not in the way most people assume. There are two standards worth understanding here.
The “Readily Achievable” Standard
The ADA includes a barrier removal standard that requires property owners to remove accessibility barriers when doing so is reasonably achievable given the property’s resources. That’s not a permanent exemption. It’s a shifting standard that changes as properties change hands, as enforcement activity increases, and as renovation projects create new compliance obligations. Age alone doesn’t protect a property.
The Substantial Alteration Trigger
The more significant exposure point is substantial alteration. If you repave or resurface a section of your parking lot, the ADA requires that any accessible elements in the affected path of travel also be brought into compliance as part of that work. A resurfacing project that touches the area near your accessible spaces can create an ADA obligation you didn’t plan for. Knowing that before you schedule paving work helps you scope the project accurately and avoid getting caught off guard mid-project.
What Triggers a Compliance Review
Most ADA remediation projects don’t start proactively. They start because something forced the issue.
Citations and Inspections
Inspectors have flagged commercial properties for accessible spaces that don’t meet current grade or dimension standards, missing or non-compliant signage, ramps built to outdated specifications, and accessible routes that don’t connect properly to building entrances.
Complaints and Legal Pressure
Complaints from visitors with disabilities can also initiate a review, and properties with unresolved citations can face increasing pressure from legal counsel to remediate before the exposure escalates. Metro Atlanta saw a significant wave of ADA enforcement activity in recent years that has since leveled off. The requirements, however, haven’t changed. Properties that haven’t been formally assessed in several years may have compliance gaps that simply haven’t been flagged yet.
What a Full Remediation Scope Actually Includes
A complete ADA parking lot remediation project covers more than one element. Typical scope for a commercial property includes all of the following:
- Accessible stall reconstruction to meet current grade requirements
- Curb ramp removal and replacement built to ADA curb ramp requirements
- Truncated dome installation at every ramp transition
- Access aisle and accessible space striping
- Van-accessible designation signage
- Path of travel work from the accessible parking area to the building entrance
Ace Paving & Maintenance coordinates that full scope for commercial property managers across Metro Atlanta, with one point of contact managing the project from initial assessment through completion.
Start Getting Your Lot Into ADA Compliance Today
Ace Paving & Maintenance coordinates full ADA remediation for commercial property managers across Metro Atlanta. Asphalt work is handled by Ace crews directly, and concrete ramp work is coordinated through vetted subcontractors that Ace manages. Either way, you get one point of contact and one accountable party from assessment through completion. Reach out today and we’ll walk your property, document what’s out of compliance, and give you a clear scope and timeline before anything is scheduled.
