What Work Requires a Permit?
Several types of permits are required for construction and improvements:
Building permits
Public space permits
Raze permits
Water and sewer excavation permits
Supplemental systems installation permits
There is a fee for each permit – and an additional fee for any work in a public space.

The following are types of work that require building permits:
New construction
Additions
Demolition
Construction of retaining walls, decks, fences, sheds, garages, and vaults
Erection of signs and awnings


You need a public space permit for the following:
Dumpsters in public space
Sidewalk construction and repair
Flag poles, planter boxes, retaining walls and fences in public space


You need a raze permit for demolition of buildings and structures. To raze structures larger than 500 square feet, you must show a certificate of insurance for $500,000 in coverage.


The following work requires a water or sewer excavation permit:
Water or sewer pipe installation
Connections to water and sewer mains in the street
Excavation for water meters and meter vaults in public space
Only licensed DC contractors within the specific trade may apply for these permits


The following work requires a supplemental systems installation permit:
Air conditioning installation
Refrigeration system installation
Plumbing fixture installation
Electrical installation
Gas appliance installation
Only licensed DC contractors within the specific trade may apply for these permits.

