Permit guides
Search the published guide library. Check the conditions, confirm the jurisdiction, then follow the official application path.
A new or converted District accessory apartment requires site-specific zoning and building review, construction and trade permits, and final inspections before occupancy.
A residential panel or service upgrade requires a District electrical permit; a qualifying heavy-up to no more than 200 amps can use the licensed-contractor instant path.
District DOB uses a fence permit for private-property fence repair, replacement and new installation, with simplified evidence for small in-kind work.
District DOB requires the applicable mechanical or supplemental trade permit for regulated residential HVAC installation, repair or replacement.
District DOB routes residential roof repair and replacement through its permit process, with added review when the scope is structural, historic or otherwise complex.
A qualifying residential rooftop PV system uses the District's Solar Instant Permit path and also needs an electrical permit and approved inspection.
District DOB requires the applicable plumbing, gas and electrical trade permits for regulated residential water-heater installation or replacement.