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Department of Buildings

In observance of the Memorial Day holiday, DOB will be closed on Monday, May 27, 2024; no construction will be allowed on this day without an after-hours permit. You may report illegal construction by submitting an Illegal Construction Inspection Request Form during normal business hours or by calling 311.

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Welcome to the Department of Buildings

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Overview of Permitting Process

Getting a permit in the District involves numerous steps. Depending on the project, you may be required to get approvals or services from agencies besides DOB.

The development standards outlined in Title 12 of the District of Columbia Municipal Regulations (DCMR) regulate the use of land, the height and size of buildings, the size of lots, provision of yards, parking requirements, and more. 

Before you submit your permit application
Find out if development restrictions apply to your project. Learn your zoning district and if you are in a zoning overlay. Overlay districts set forth additional zoning regulations that are combined with the underlying zoning district. Additional development restrictions are administered by other agencies, such as Historic Preservation, the National Capital Planning Commission, the US Commission of Fine Arts or other preliminary reviewing organizations. For more information and a complete list of overlays, visit the DC Office of Zoning website.

DOB's Building Permit Fee Schedule provides information on the costs associated with permitting your project, so be sure to consult that as you are planning your project. You may also view DOB's Plan Review and Permitting Timelines to get a feel for how long the anticipated review time is for your plan review and permitting process from start to finish.

Learn if you need to get Office of the Surveyor documents to submit with your permit application. These may include plats, subdivisions or street and alley closing forms. Plats are required for all exterior work and must show all existing structures drawn to scale. Plats are not required for jobs that only consist of interior work (e.g. bathroom remodeling). A building plat is a scaled drawing of a lot, showing lot lines and record dimensions. The plat must be certified by the DC Surveyor and is usually used to get a building permit. To get a building plat, you must place the order in person at the Office of the Surveyor. To place the order, you will need the Square, Suffix and Lot (SSL) number for each property. The cost of a regular plat is $30.

Find out if you need issuance of a new address. If you do, submit a completed application to the online through our Kustomer portal. Schedule a Preliminary Design Review Meeting (PDRM) if you are submitting a large-scale project, such as construction of a new residential or office building. The meeting provides applicants with a preliminary review of their building plans prior to filing.

Set up other pre-application meetings with the DC Water, DC Department of Transportation (DDOT) and the Department of Health (DOH). These meetings can help eliminate unforeseen obstacles during review of permit applications, particularly on large-scale projects.

Environmental Review Process
DC Public Law 8-36, the Environmental Policy Act of 1989, requires that all District of Columbia agencies consider the environmental impact of all proposed major actions before issuing any approvals for them.
Building permit applicants are required to submit an Environmental Intake Form (EIF) with their application to determine if an Environmental Impact Screening (EIS) is required. If an Environmental Impact Screening is required, an interagency review team will look over the applicants' Environmental Impact Screening Form (EISF) and make a determination. This process takes approximately 30 days.

All forms, regulations and maps relevant to the Environmental Review Process are on this website. Please take the time to read and understand these materials. Remember, no permit will be issued until the environmental review process has been completed.

Preparing Your Permit Application
When preparing your permit application:

  • Make sure all required information is provided and all applicable boxes are checked
  • Include a valid address
  • Collect and submit the required supporting documentation

Intake/Completeness Check
All applications are reviewed electronically once submitted through the Citizens Access portal.

Plan Submittal
When you have completed your application, you will receive an email with a link to our ProjectDox ePlan review system, which you will be able to upload all plans and supporting documents for plan review. A Plan Review Coordinator will review your application and plans to determine if you have met the minimum requirement for plan review based on the complexity of the project scope. Once approved at the pre-screening, your project will be assigned to the required plan review disciplines for review.

Plan Review
After you file your building permit application, it must be reviewed by all of the relevant disciplines. Each discipline will review the plans and approve them — or put a hold on the application so you can make corrections in response to the plan reviewer’s comments. Final building permit approval will not be given to any project until all disciplines and external agencies have approved and stamped the plans.

Typically, plans are routed through:

  • Zoning review
  • Mechanical/Plumbing review
  • Electrical review
  • Fire review
  • Structural review
  • Green
  • Energy

For certain projects such as restaurants, excavation, work in historic districts, or work in public space, these agencies may also participate in the review process:

  • Office of Planning (Historic Preservation)
  • District Department of Transportation (Public Space)
  • Department of Health (Community Hygiene)
  • Department of the Environment (Soil Erosion and Storm Water Management)
  • Water and Sewer Authority

Permit Issuance
After all disciplines and external agencies approve the application, you will receive a notification to pay any outstanding permit fees. During issuance, if you have not entered the contractor’s information or indicated as the property owner that you will be acting as the contractor, we will notify that this information is missing. At this time, you must update this information by selecting the permit record under your citizens access account and you will have an edit option to complete this step. The contractor’s information (license number and mailing address) is required for issuance of the permit. (Note: If you are a homeowner completing the work on your own, you can list yourself as the contractor during your submission of the permit application)

There are two categories of DOB inspections related to permits:

  • Building inspections, which include plumbing, electrical, fire and construction inspections, assure the building has been constructed in accordance with the building code and approved plans.
  • Certificate of Occupancy (C of O) inspections, related to the use of the building, are required for occupancy of all buildings except single-family dwellings. To schedule a plumbing, electrical, fire, construction, elevator or boiler inspection, call the Building Inspections Scheduling unit at (202) 671-3500. You can now schedule construction inspections 24/7 from any phone.

If you intend to use a Third Party Inspection agency, please review the guidelines online.

Certificates of Occupancy
A Certificate of Occupancy (C of O) is a document that certifies that the use of a building complies with Zoning regulations and Building Codes.

A new Certificate of Occupancy is required when new construction or alteration has occurred—or there have been changes in:

  • Ownership
  • Occupancy Load
  • Use

You must get a Certificate of Occupancy before occupation and use of the building. The certificate must be posted onsite.

Please note that single-family homes, individual units in an apartment building and individual suites in an office building do not require Certificates of Occupancy. Please view the Certificate of Occupancy process to begin your application.