Accessory Structure permits · District of Columbia

Where District of Columbia builds garages and sheds, permit by permit.

Garages, sheds, and accessory dwellings are property expansion, filed as their own permits and often followed by service work. Tradewinds observes them in county permit records.

Book a call
What an accessory structure filing shows.
🏚️

Detached garages

A garage build is a large outbuilding spend that usually pulls its own electrical service run.

🏘️

Accessory dwellings

An accessory dwelling is a second full set of mechanical, electrical, and plumbing work on one parcel.

🧰

Sheds and outbuildings

Smaller structures still mark a homeowner investing in the property, and they cluster with outdoor living work.

Service that follows

Powering a new structure means a separate electrical filing, often weeks after the structure permit.

8193
accessory structure permits observed in District of Columbia, since January 2009

By county

Washington DC 8193

By year

2009 230
2010 393
2011 366
2012 435
2013 390
2014 377
2015 438
2016 503
2017 495
2018 548
2019 671
2020 607
2021 567
2022 507
2023 438
2024 471
2025 491
2026 266

Other trades in District of Columbia

Accessory Structure in other states

See last week's activity, free

Every Monday we publish last week's accessory structure permits for every county we cover. Browse this week's activity.

Working in District of Columbia?

Tell us your territory and we will bring the data to the first call. See the counties and trades we cover on the coverage page, or the firms doing this work in the contractor registry.

Book a call

Built from county permit filings. Not every filing names a trade cleanly, and counties differ in what they publish, so these counts reflect our coverage as much as the work happening on the ground.