FEMA flood zone rules in Federal Way, WA — also called floodplain regulations or special flood hazard area (SFHA) rules — determine flood insurance requirements and elevation standards for new construction.
Federal Way is a FEMA-participating community with floodplain along Hylebos Creek, Lakota Creek, and Puget Sound shoreline. New construction in mapped AE zones requires elevation 1 foot above base flood.
Federal Way covers floodplain areas mapped by FEMA as Special Flood Hazard Area (Zone AE) primarily along Hylebos Creek, Lakota Creek, Joe's Creek, and the Puget Sound coastline at Dumas Bay. FWRC Title 15 implements the National Flood Insurance Program and requires residential lowest floors to be elevated at least 1 foot above the base flood elevation (freeboard). Fill in the floodway is prohibited, and substantial improvements (over 50 percent of structure value) trigger full compliance. Non-residential buildings can dry-floodproof to the same elevation. Any grading, filling, or building in the mapped floodplain requires a floodplain development permit. Coastal AE zones along Dumas Bay also face tidal and storm-surge risk. Flood insurance is required by most lenders in Zone AE. After recent FEMA map updates, some areas gained or lost SFHA status, so property owners should pull a current FIRMette from the FEMA Map Service Center before starting work.
Contact your local code enforcement office for specific penalty information.
Federal Way, WA
Federal Way permits construction under WAC 173-60.050 exemptions between 7 AM and 10 PM. Sunday work near homes is typically restricted. Work outside the win...
Federal Way, WA
Federal Way prohibits dogs that bark or howl continuously and disturb neighbors under FWRC Title 9. Typical threshold is 20 minutes of continuous noise. Comp...
Federal Way, WA
Outdoor music events in Federal Way need a special event permit on public property or when amplified beyond neighborhood levels. Receiving limits at residenc...
Federal Way, WA
Federal Way limits on-street RV and boat trailer parking to 72 hours. In residential zones, RVs on private property must be parked on a paved or gravel surfa...
Federal Way, WA
Federal Way follows Washington State Building Code EV-ready requirements for new multifamily and commercial buildings. Public chargers exist at the Transit C...
Federal Way, WA
Under RCW 46.55, Federal Way police can tag and tow a vehicle left on a public street for more than 72 hours. On private property, owners follow state impoun...
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