ABA Accessibility Standard for GSA Facilities Pocket Guide

F233.3.2 Additions.

Where an addition to an existing building results in an increase in the number of residential dwelling units, the requirements of F233.3.1 shall apply only to the residential dwelling units that are added until the total number of residential dwelling units complies with the minimum number required by F233.3.1. Residential dwelling units required to comply with F233.3.1.1 shall be on an accessible route as required by F206.