Seattle Permitting Note: Seattle is in a high seismic zone — structural work must meet enhanced earthquake-resistance standards. Seattle also has one of the nation's strictest tree ordinances; check tree removal requirements before any excavation.
Seattle building permits are handled by the Seattle Department of Construction & Inspections (SDCI). The city's seismic zone and strict tree ordinances affect many projects.
Seattle Permitting Note: Seattle is in a high seismic zone — structural work must meet enhanced earthquake-resistance standards. Seattle also has one of the nation's strictest tree ordinances; check tree removal requirements before any excavation.