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Department of Buildings

In observance of the Emancipation Day holiday, DOB will be closed on Tuesday, April 16, 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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Surveyor Services

Get a Building Plat

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 – a plat map that includes drawings of all existing and proposed property improvements such as the house, the driveway, the deck you want to build, etc.

Get a Building Plat


Get a Subdivision Plat

Applicants must provide the lot and square number(s) and a sketch of the provided layout of the lot(s) for the location where the subdivision is needed. If the subdivision involves a tax (for example: 800 series numbers) then a deed will be required.

Get a Subdivision Plat


Get a Wall Check

Are you in compliance with District wall check requirements? Failure to comply with District wall check requirements may result in DOB stopping the work on your project.

Get a Wall Check


View Land Records (SurDocs)

SurDocs is an online research tool that enables the public to search all digital land surveys. This tool is used to view all field survey records and surveyor plats.

View Land Records


Get Street, Alley Closure/Dedication Approval, or Elimination of Building Restriction Line

Chapter 1400 of Title 24, District of Columbia Municipal Regulations (DCMR) sets forth regulations related to the process of closing streets and alleys.

Get Street or Alley Closure



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