The Department of Licenses and Inspections (L&I) issues permits for construction, demolition, and excavation work in the city. Certain types of projects that impact an adjacent property must meet additional requirements in order to protect residents and their property.

The documents on this page are required for projects that include any of the following kinds of work:

• Excavation work more than five feet below the adjacent grade and within 10 feet of an adjacent building or structure
• Excavation, demolition, or construction work within 90 feet of a historic structure on the same or adjacent parcel
• Modifying a party wall, including demolition, joist replacement of more than 10%, and additions
• Severing a structural roof or wall covering spanning properties