Washington DC Deck Permit Guide

Washington DC has a specific deck permit path for one- and two-family dwellings, with special treatment for one-level residential decks under 500 square feet when the DOB Deck Guide applies.

Permit takeaway

A DC deck permit is intended for single-family and two-family dwellings, and DOB allows the Deck Permit service type for a one-level deck under 500 square feet.

Zoning and placement

Deck location, lot conditions, rowhouse context, historic status, and public space issues can change the review path even when the deck is small.

Building and trade review

If the project uses the DOB Deck Guide for an eligible one-level deck, a design professional does not need to be identified in the permit application.

Call before applying when

Call before applying if the deck is multi-level, over 500 square feet, attached to a multi-unit building, includes an occupied roof deck, sits in a historic district, or changes public space access.

Documents to prepare

• Deck dimensions
• Site or surveyor plat
• Deck construction details
• Stair and guardrail information
• Historic status if applicable

Inspection planning

• Select Deck Permit when eligible
• Upload deck documents
• Complete plan review
• Keep approved plans available
• Schedule inspections before concealing structural work

Official sources

• DC DOB Deck Permit
• DC DOB Permitting FAQs
• DC DOB Homeowner's Center

This guide is a planning summary. Always verify the current requirements with the local office before starting work.