When does a shed need a building permit in Washington?

DC exempts only a single garden shed of 50 sq ft or less and under 10 ft tall, and only outside historic districts. A single garden storage shed of 50 sq ft or less, under 10 ft tall and outside a historic district, needs no building permit.

How far from the property line can a shed go in Washington?

Side setback: 3 ft from a side lot line shared with another lot (since July 2026). Setbacks vary by zoning district; check your exact lot for the district that applies.

Where do I apply for a shed permit in Washington?

Apply through Department of Buildings, or call (202) 671-3500.

Do you need a permit for a shed in Washington, DC?

It depends on size and placement.

Only a single garden shed of 50 sq ft or less, under 10 ft tall, skips the building permit.

In a historic district even that small shed needs a permit.

Sheds, unlike garages, may sit in DC's required rear yard.

Rules last checked by a person on October 20, 2026. Guidance only; confirm with Washington before you build.

Check your exact lot

Setbacks depend on your zoning district, and a flood zone can change the permit answer. Enter your address to see both.

Permits a shed can need in Washington

Permit	When it applies
Building permit	DC exempts only a single garden shed of 50 sq ft or less and under 10 ft tall, and only outside historic districts.
Floodplain development permit	If the lot is in a FEMA special flood hazard area, communities in the flood insurance program must permit all development there, sheds included.
Electrical permit	Running power to the shed needs an electrical permit even when the shed itself is exempt.Confidence: medium

R-1 (R-1-A, R-1-B) detached houses

Shed standards in R-1 (R-1-A, R-1-B) detached houses
Location	Not in front of the house. A shed may sit in the required rear or side yardConfidence: medium
Side setback	3 ft from a side lot line shared with another lot (since July 2026)Confidence: medium
Rear setback	5 ft from a rear lot line shared with another lot; none along an alley, but 7.5 ft from the alley centerlineConfidence: medium
Height	22 ft and 2 stories
Footprint	650 sq ft or 30% of the required rear yard, whichever is greater
Lot occupancy	40% for all buildings on the lot, accessory buildings included

All rules for R-1 (R-1-A, R-1-B) detached houses

R-2 and R-3 semi-detached and row houses

Shed standards in R-2 and R-3 semi-detached and row houses
Location	Not in front of the house. A shed may sit in the required rear or side yardConfidence: medium
Side setback	3 ft from a side lot line shared with another lot (since July 2026)Confidence: medium
Rear setback	5 ft from a rear lot line shared with another lot; 7.5 ft from any alley centerlineConfidence: medium
Height	22 ft and 2 stories
Footprint	650 sq ft in R-2, 550 sq ft in R-3, or 30% of the required rear yard if greater

All rules for R-2 and R-3 semi-detached and row houses

RF rowhouse zones (RF-1 to RF-5)

Shed standards in RF rowhouse zones (RF-1 to RF-5)
Location	Not in front of the house. Sheds may sit in the required rear or side yard
Alley setback	7.5 ft from the centerline of any alley
Height	22 ft and 2 stories
Lot occupancy	Counts toward the 60% cap for row houses (70% by special exception)

All rules for RF rowhouse zones (RF-1 to RF-5)

Local details

No permit doesn't mean no rules: the shed still has to meet the zoning placement and height limits for your zone.
Call 811 at least a few days before you dig footings or post holes. Utility locating is free.
HOA covenants and deed restrictions can be stricter than city rules. Check yours before you build.

How to apply

Questions people ask

When does a shed need a building permit in Washington?: DC exempts only a single garden shed of 50 sq ft or less and under 10 ft tall, and only outside historic districts. A single garden storage shed of 50 sq ft or less, under 10 ft tall and outside a historic district, needs no building permit.
How far from the property line can a shed go in Washington?: Side setback: 3 ft from a side lot line shared with another lot (since July 2026). Setbacks vary by zoning district; check your exact lot for the district that applies.
Where do I apply for a shed permit in Washington?: Apply through Department of Buildings, or call (202) 671-3500.

Sources

DC Department of Buildings, How to get a permit. Checked 2026-10-20.
Unless you are in a historic district, the following work does not require a building permit: ... Single garden storage shed that does not exceed 50 square feet (4.65 m2) in area and is less than 10 feet (3048 mm) in overall height ... Repair of existing fe…
44 CFR 59.1, definition of development (NFIP). Checked 2026-10-19.
Development means any man-made change to improved or unimproved real estate, including but not limited to buildings or other structures...
44 CFR 60.3, floodplain management criteria. Checked 2026-10-19.
Require permits for all proposed construction or other development in the community...
2024 IRC R105.2, Work exempt from permit (text published by the City of Benson, AZ). Checked 2026-10-19.
One-story detached accessory structures, provided that the floor area does not exceed 200 square feet. Fences not over 7 feet high. Decks not exceeding 200 square feet in area, that are not more than 30 inches above grade at any point, are not attached to a…