Seattle commercial building permits, December 2025

Seattle building permits in December 2025: key facts

• In December 2025, Seattle issued 1,305 building permits on commercial and multifamily properties, on 308 projects, declaring $273M of work.
• The busiest trade was electrical (755 permits), then HVAC/mechanical (215).
• The most active contractor was cochran inc, with 44 permits.
• The largest project was at 14322 30th Ave Ne, with $50M declared.
• Half of the month’s permits were issued within 17 days of application.

Source: building permit records from official city open-data portals, checked daily. Data through October 28, 2026. How we count