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Commercial PCAField Guide #03•5 min read•Oct 08, 2026

ADA Title III & Texas Accessibility Standards (TAS): Avoiding Lawsuits in Commercial Acquisitions

Navigating federal ADA Title III accessibility mandates and Texas Department of Licensing and Regulation (TDLR) Architectural Barriers requirements in commercial due diligence.

Inspector Mack
Master Inspector MackTREC #23070
Commercial PCA Division (ASTM E2018) • TDLR MAC #1974 • TDA SPCS #089201
#ADA#TAS#curb ramps#1:48 slope
ADA Title III & Texas Accessibility Standards (TAS): Avoiding Lawsuits in Commercial Acquisitions
Secured Inspections® Field Documentation • Guide #03ADA • TAS • curb ramps
Primary DivisionCommercial PCA
Governing StandardASTM E2018-24 / NFPA
Report Turnaround24-Hr Debrief • 3–5 Day PCA

When acquiring commercial real estate in Texas—whether a suburban retail strip center, medical office building, or multi-tenant professional plaza—accessibility due diligence is paramount. Under Title III of the Americans with Disabilities Act (ADA) and the Texas Accessibility Standards (TAS) administered by the Texas Department of Licensing and Regulation (TDLR), property owners face strict legal liability for architectural barriers that impede individuals with disabilities.

1. Understanding the ASTM E2018 Visual Accessibility Scope

In a standard baseline Property Condition Assessment conforming to ASTM E2018-24 Section 11, the accessibility audit is classified as an "Abbreviated Visual Survey." This survey identifies conspicuous physical barriers along the primary path of travel, accessible parking inventory, building entrances, public restrooms, and drinking fountains. Secured Inspections expands on this baseline by utilizing digital inclinometers, laser distance meters, and force-pull gauges to deliver defensible geometric data for commercial investors.

2. Accessible Parking & Path of Travel Deficiencies

The accessible route begins at the public vehicular entrance and sidewalk boundary. Common civil liabilities uncovered during our Texas commercial surveys include:

  • Inadequate Accessible Stall Counts: A parking facility with 1 to 25 total stalls must feature at least 1 accessible stall; 26 to 50 stalls require 2; 51 to 75 require 3. For every six accessible stalls, at least one must be designated "Van Accessible."
  • Cross-Slope Violations: Accessible parking spaces and access aisles must be virtually level, not exceeding a maximum slope of 1:48 (2.08%) in all directions to prevent wheelchairs from rolling away during transfers.
  • Curb Ramp Flared Sides: Where pedestrian circulation crosses a curb ramp, flared sides must not exceed a 1:10 slope unless guarded by handrails or landscaped planting buffers.

3. Main Entrance and Interior Door Clearances

Exterior doors must provide a minimum 32-inch clear opening width measured between the face of the door and the stop with the door opened to 90 degrees. Thresholds must not exceed 1/2 inch in height, be beveled at a slope not steeper than 1:2, and feature lever-operated or push-plate door hardware requiring no tight grasping, pinching, or twisting of the wrist. Maximum operating force must not exceed 5 pounds-force for interior hinged doors.

4. Restroom Compliance: Clear Floor Space and Grab Bars

Public and employee restrooms represent the most expensive retrofit area when accessibility deficiencies are contested. A compliant single-user commercial restroom requires:

  • A continuous 60-inch circular turning radius or T-shaped turning space clear of door swings.
  • Water closet centerline positioned precisely 16 to 18 inches from the adjacent side wall.
  • Horizontal grab bars mounted 33 to 36 inches above the finished floor (minimum 42-inch length on side wall, 36-inch length on rear wall).
  • Lavatory rim height not exceeding 34 inches with insulated hot water and drain piping to protect wheelchair users from scald burns.
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