Who needs a certificate of occupancy or home occupation permit in District of Columbia?

Issued by Department of Buildings (DOB), Permit Operations and Zoning Administrator, at step 3 of 6 in the opening sequence: approve the space.

Every kind of business in District of Columbia

The District of Columbia table lists this for every kind of business.

A new tenant in a space already approved for the same use files a change of business certificate of occupancy; converting a space to a new use (retail to restaurant, for example) needs a building permit and a use change certificate after the inspections. The occupant load printed on the certificate sets the liquor license tier and the restaurant fee. A business run from home files for a home occupation permit instead, and DLCP will not issue the BBL without one or the other.

Checked Oct 21, 2026 against the agency’s page.

Step 3 of 6: Approve the space

  1. Set up the business
  2. Register for tax
  3. Approve the space
  4. Get the permits for your kind of business
  5. Alcohol permits
  6. Before the first hire

Issued by Department of Buildings (DOB), Permit Operations and Zoning Administrator.

Sources and dates

Department of Buildings certificate of occupancy pages (use change, new business and occupant load change guides); DOB home occupation permit page. Checked against the agency’s page on the date shown; cities add their own fees.

Questions about opening here.