How many accessible spaces your lot needs
The 2010 ADA Standards (Table 208.2) set the minimum per lot: 1 accessible space for lots up to 25 total spaces, 2 for 26–50, 3 for 51–75, 4 for 76–100, 5 for 101–150, and 6 for 151–200. At least one of every six accessible spaces must be van-accessible (Section 208.2.4), counted separately for each parking facility on a site.
