Skip to content
SetbackIQ

Construction hours and noise in Washington, DC

Construction is allowed Monday through Saturday, 7 a.m. to 7 p.m., without a special permit. Construction noise is barred on Sundays and legal holidays. Other hours need an after-hours permit.

A person last checked these rules on October 20, 2026. This is guidance only, so confirm with Washington before you build.

The details

  • Monday to Saturday, 7 a.m. to 7 p.m.. Anything else needs a DOB after-hours permit, and some holidays are excluded.High confidence
  • During allowed hours construction noise is limited to 80 dB(A) (one-hour average) unless DOB grants a variance. Small power tools for minor home improvements are exempt from the hours rule.High confidence

Check a project at your address

SetbackIQ reads the zoning, flood zone, historic district, and environmental maps for your lot. Then it applies these rules.

What are you building?

Open the checker

Common questions

What hours can construction happen, and how loud can equipment be in Washington?
Construction is allowed Monday through Saturday, 7 a.m. to 7 p.m., without a special permit. Construction noise is barred on Sundays and legal holidays. Other hours need an after-hours permit.

Sources

  1. DC DOB, Construction hours and after-hours permits. Checked 2026-10-21
    Construction is allowed Monday through Saturday from 7 am to 7 pm without any special permits. Construction outside of those hours requires an after-hours permit.
  2. DC Noise Regulation Handbook (20 DCMR §§ 2701, 2801, 2802, 2803). Checked 2026-10-21
    [Residential zones, at the property line] Daytime (7 a.m. to 9 p.m.): 60 dB(A); Nighttime (9 p.m. to 7 a.m.): 55 dB(A)... [Noise from] air conditioners, refrigerators, heat pumps, fans... shall be prohibited in excess of sixty (60) dB(A) when measured at th…

Disclaimer: This is general information, not legal or professional advice for any one property. Codes change. SetbackIQ is not a zoning determination, a permit, or a survey, and it does not replace an architect, engineer, or lawyer. Confirm with your building and zoning offices before you build, buy, or sign a contract.