A continuous, unobstructed accessible route must connect the accessible entrance (and accessible parking) to and through the altered space — with compliant width, turning spaces, door maneuvering clearances, and limits on protruding objects and changes in level.
Accessible toilet rooms require clear floor space, specific fixture clearances (at the water closet and lavatory), grab bars, compliant mounting heights, and accessible door approach. Enlarged restroom plans with these dimensions are expected on the set. See also our commercial restroom guide.
Switches, thermostats, dispensers, and other operable parts must be within the accessible reach ranges and operable without tight grasping/twisting. Mounting heights are a common detail comment.
This is the TI-specific catch: when you alter an area, accessibility rules can require the path of travel serving it — entrance, route, restrooms, drinking fountains, telephones — to be made accessible too (subject to defined limits). Designing only the altered room and ignoring the path of travel is a frequent and costly miss. See our TI checklist and change of occupancy guide.
Catch accessibility issues before you submit
Run a Free Pre-Review →Model IBC Chapter 11 / A117.1 / ADA framing; the adopted edition, state accessibility code (e.g., CBC in California), and ADA Standards govern. Verify against your codes of record.