The purpose of a Certificate of Occupancy (“COO” or “C of O”) is to ensure that the use of a building, structure or land in the District of Columbia conforms to the Zoning Regulations (DCMR Title 11) provisions of the DC Construction Codes, and the Green Building Act.
In most cases, no person can use a building, structure or land in the District of Columbia for any purpose other than a single-family dwelling, until a valid Certificate of Occupancy has been issued.
- Certificate of Occupancy Types
- Ownership Change
- Use Change
- Occupant Load Change
- Temporary Occupancy
- New Building (there are three subsets)
- Completion of core and shell
- Establishment of a new occupancy
For more information about the types of Certificate of Occupancy Applications and instructions for completing an application, view Zoning FAQs.
Application Process - Change of Ownership
Application Process - All Other Types
Resources and Information:
- Certificate of Occupancy Application
- Certificate of Occupancy Supporting Documents
- Issuance of Conditional Certificates of Occupancy Guidelines
- Certificate of Occupancy FAQs
- Certificate of Occupancy Authorization Form