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When you apply for a building permit to do exterior work on your property such as building an addition or adding a deck, you must include a building plat.
This permit is required if nothing remains at the site except for a party wall and/or a foundation.
IMPORTANT NOTE: To continue working as third-party agencies in the District, third-party agencies must re-certify and create a Tertius profile by January 1, 2026.
This is information on how to appeal a Stop Work Order including a step-by-step process and Stop Work Order Compliance Review Request Form.
Installation, repair or replacement of a refrigeration and/or air conditioning system.
Construction of an entirely new structure that has not been previously occupied.
DOB continues to improve online services for our customers with the Permit Expediter Form. All filing representatives are required to register using this form when filing a permit application on behalf of a property owner. The process is quick, simple
Any person or group may submit a petition to the Construction Codes Coordinating Board (CCCB) to amend the DC Construction Codes (Title 12 of the DCMR).
The CCCB may refer a code change petition to one of the Technical Advisory Groups (TAGs) for review and comment.
Repair, replacement or installation of a plumbing or gas system.
ProjectDox is DOB's online platform for the electronic submission of building plans and supporting documentation to be reviewed by DOB's plan reviewers. Following are the steps to use the platform.
Our mission is to provide the residents of the District of Columbia with the highest quality records center.
DOB determines that a building is blighted if it is unsafe, unsanitary, or otherwise determined to threaten the health, safety, or general welfare of the community.
In making the determination, we consider the following factors: