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Department of Buildings

In observance of the Indigenous Peoples' Day holiday, DOB will be closed and no construction will be allowed on Monday, October 9, 2023 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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Energy and Green Building Solar

Solar Energy Permitting

The DC Department of Buildings (DOB) is dedicated to completing Solar Plan Reviews within ten (10) business days.

For an overview of the District's permitting process, please visit our Permitting Overview page.

Solar Code Compliance

  • Residential permit applications are reviewed using the District of Columbia Residential Code, 2017.

  • Multi-family and Commercial permit applications are reviewed using the District of Columbia Building Code, 2017.

Solar Permitting Application

  • Submit Residential one and two-family permit applications through the Permit Wizard.
  • Submit Multi-family and Commercial permit applications through the Citizen Access Portal.

Solar Plan Review Resources

Solar Self-Certification: One- and two-family residential buildings may qualify for expediated zoning plan review using our solar self-certification process. Roof mounted systems not more than two feet (2’) above the roof or parapet-mounted panels not more than one foot (1’) above the top of the side wall parapet qualify for the solar self-certification process.

The District of Columbia has laws and regulations to protect neighboring properties from damage. To learn more about your responsibilities as a permit applicant, visit our Neighbor Notification webpage.

Solar Inspections

Go to Tertius, our one-stop shop that serves as a marketplace for District inspections.

Additional Information and Resources

DC Intersection with office buildings and a church