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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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Welcome to the Department of Buildings

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Energy and Green Building

The Office of Construction and Building Standards' Green Building division is responsible for regulating construction in the District that falls under the regulations of the Green Building Act, Green Construction Code, and Energy Conservation Code. The division is responsible for plan reviews, building inspections, certificate of occupancy review, training, and education. The Green Building division collaborates with sister agencies, the building industry, and the community to further efforts to build a more sustainable DC.

Our Work

The District adopted the 2012 International Green Construction Code (IGCC) and the 2012 International Energy Conservation Code (IECC) as amended by the 2013 DC Construction Codes Supplement (12 DCMR) in March 2014. With these actions, the District leads the nation as the first jurisdiction in the country to adopt both the 2012 IgCC and 2012 IECC as mandatory codes, applicable to both public and private sector buildings.
These codes reflect the most modern, sustainable, energy- and water-efficient building practices, and extend the green building practices legislated by the District of Columbia Green Building Act of 2006 (the Green Building Act, or GBA). The adoption of these codes will greatly expand the work already being done under the Green Building Act and the Sustainable DC Plan.

The Green Building division is responsible for regulating construction in the District that falls under the regulations of sustainable codes including the Green Building Act, Green Construction Code, and Energy Conservation Code.

Contact Us

Email us at [email protected].


To assist in the permitting and inspection process, the Energy Verification Worksheet and Green & Energy Compliance System (GECS) have been replaced. An interactive workbook for the 2013 and 2017 DC Energy and Green Construction Codes has been created. The Energy and Green Worksheets workbook is unique to your project and, unlike prior forms, eliminates the requirement to create a pdf of the Energy Verification Sheets (EVS) for project review,

Using the Energy and Green Worksheets Workbook

  • Energy and Green Worksheets workbook
  • Once you select the link you will be prompted to make a copy of the workbook for your current project.
  • With each new project, visit this site and make a copy of the workbook to ensure that you are working with the most recent version.
  • In the workbook, instructions for its use are included on the Introduction Tab under, “How to use this document.” There are additional instructions on each of the required tabs.

Uploading Your Energy and Green Worksheets

Prior to uploading your drawings to DOB's Project Dox, create a document such as a Word document that can be saved as a PDF file. In the document, include:

  • Permit Number
  • Building Address
  • The link to your copy of the workbook containing your Energy and Green Worksheets.

Save the document as a PDF and upload to ProjectDox under Supporting Documents with the page labeled, “Energy and Green Worksheets.” DO NOT UPLOAD AN EXCEL VERSION OF THE WORKSHEETS.

Commercial and Residential Energy Conservation Code Training

Please note, the training slides provided below were developed under the auspices of DCRA which ceased operations on September 30, 2022. Should you need more information, please contact the Department of Buildings. 

Commercial Energy Conservation Code Training - Slides

Residential Energy Conservation Code Training - Slides

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