Flood Zones: Kent vs Redmond
How do flood zones rules compare between Kent, WA and Redmond, WA?
Kent and Redmond have similar restriction levels.
Kent, WA
King County
Kent is a FEMA-participating community with significant Green River and Mill Creek floodplain. New construction in mapped AE zones requires elevation 1 foot above base flood and a floodplain permit.
View full Kent 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 | Kent | Redmond |
|---|---|---|
| Freeboard | 1 ft above BFE | 1-2 ft above BFE |
| Zones | AE on valley floor | - |
| 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.
Kent FAQ
Is Kent in a flood zone?
Yes, much of the valley floor and Green River corridor is FEMA Zone AE; East Hill and West Hill are mostly outside the SFHA.
Do I need flood insurance in Kent?
Federally-backed mortgages in Zone AE require it, and even outside SFHA insurance is wise given historical Green River events.
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.
Compare other topics
See how Kent and Redmond compare on other ordinance categories.
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