Flood Zones: Federal Way vs Redmond
How do flood zones rules compare between Federal Way, WA and Redmond, WA?
Federal Way and Redmond have similar restriction levels.
Federal Way, WA
King County
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.
View full Federal Way rules →Redmond, WA
King County
Redmond participates in the NFIP and regulates construction in FEMA Special Flood Hazard Areas along Bear Creek, Evans Creek, and the Sammamish River. Critical areas code adds 1-2 ft freeboard.
View full Redmond rules →Key Facts Comparison
| Fact | Federal Way | Redmond |
|---|---|---|
| Freeboard | 1 ft above BFE | 1-2 ft above BFE |
| Zones | AE along creeks and Dumas Bay | - |
| Floodway fill | Prohibited | - |
| Substantial improvement | >50% value triggers compliance | 50% rule applies |
| Program | - | NFIP participant |
| Main floodplains | - | Bear Creek and Sammamish River |
Highlighted rows indicate differences between cities.
Federal Way FAQ
Is Federal Way in a flood zone?
Parts of the city are, mainly along Hylebos Creek, Lakota Creek, and the Dumas Bay shoreline; most interior neighborhoods are outside the SFHA.
Do I need flood insurance in Federal Way?
Federally-backed mortgages in Zone AE require it, and it is wise for properties near creeks or Puget Sound even outside the SFHA.
Redmond FAQ
Is my Redmond property in a flood zone?
Properties along the Sammamish River, Bear Creek, and Evans Creek may be in a FEMA SFHA; check the FIRM or call Redmond Planning.
Do I need flood insurance in Redmond?
Mortgage lenders require it for any federally backed loan on property inside a Special Flood Hazard Area; outside the SFHA it is optional.
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