Federal Way, WA Accessory Structures: Carport Rules (2026)

Federal Way treats carports as accessory structures subject to FWRC Chapter 19.200 (single-family zones) and related zoning chapters. A carport is a roofed structure, typically open on at least two sides, providing vehicle shelter. Building permits are required when the projected floor area exceeds 200 sq ft under WAC 51-16-080 (mirroring the 200 sq ft accessory-structure exemption). Attached carports off a primary residence must observe primary-structure setbacks (typically 20 ft front, 5 ft side, 10 ft rear in RS zones, varying by zone). Detached carports observe accessory-structure setbacks (typically 5 ft side and rear). Height is generally capped at 12 to 15 feet for accessory structures depending on specific zone. Temporary fabric or pop-up carports placed in front yards are frequently restricted as they violate aesthetic and setback rules. Most HOAs impose additional limits on carport materials, colors, and placement. Large permanent carports may count toward lot coverage and impervious-surface calculations. Contact the Planner on Duty at (253) 835-2655.