Deck Permit in Washington, DC (2026)

Everything you need to know about getting a deck permit in Washington: fees, requirements, exemptions, and direct links to the DC Department of Buildings.

Verified from official Washington sources — Last checked April 2026

Quick Facts for Washington

Permit Fees

$30.00 + (2% of construction value from $1,001-$1,000,000) + 10% surcharge. Range: $55-$22,033.

A $10,000 deck project: approximately $230 ($30 + $180 value fee + $21 surcharge).

Processing Time

1-2 business days (application processed within 24 hours of full submission).

Apply Online

Yes — via DC Permit Wizard

Building Code

2017 DC Construction Code (based on 2015 IBC/IRC with DC amendments)

Do You Need a Deck Permit in Washington?

Permit Exemption

Decks 500 sq ft or less on single/two-family dwellings can use simplified Deck Permit application (no design professional required). No full exemption from permit.

If your deck does NOT meet all exemption criteria, you must obtain a permit before construction. Building without a required permit can result in fines, stop-work orders, and required demolition.

Washington-Specific Deck Rules

Deck Permit specifically for single-family and two-family dwellings only
Decks over 500 sq ft, two-story decks, or occupied roof decks require separate permit types
Decks with plumbing, mechanical, or electrical work need additional Supplemental Systems Installation permits
Trade permits can only be procured by a DC-licensed contractor
Historic district review may apply — many DC neighborhoods are historic districts

How to Get a Deck Permit in Washington

1

Check if your deck needs a permit

Review the exemption criteria above. If your deck exceeds any threshold, a permit is required.

2

Prepare your plans

You'll need a site plan, deck dimensions, framing details, and footing specifications. Check Washington's specific documentation requirements.

3

Submit your application

Apply through DC Permit Wizard . Pay the permit fee at submission.

4

Build and schedule inspections

Once approved, post your permit visibly and schedule required inspections (typically footing, framing, and final).

Official Washington Resources

DC Permit Wizard — Apply for Permits Online
Transparency note: The following items could not be verified from official city sources and should be confirmed directly: Specific setback requirements for decks.

Estimate Your Deck Cost

Get an instant cost estimate for your deck project in Washington.

Deck Cost Calculator

Sources

https://dob.dc.gov/node/1615961https://dob.dc.gov/node/1620346https://dob.dc.gov/page/permitting-faqs

Data verified April 2026. Fees, processing times, and requirements are subject to change. Always confirm current information with Washington's DC Department of Buildings.