Contact the Development Services Office

Development Services Office

Seattle Municipal Tower
700 Fifth Ave, 27th floor
Seattle, WA 98124
(206) 684-3333
spu_dso@seattle.gov

Hours

Monday, Wednesday - Friday: 8:00 a.m. - 5:00 p.m.
Tuesday: 10:30 a.m. - 5:00 p.m.

Other questions

Waterline inspections: (206) 684-5803
Billing questions: (206) 684-3000

Utility System Improvement Disputes