Federal Way vs Redmond
How do rainwater harvesting rules compare between Federal Way, WA and Redmond, WA?
Federal Way and Redmond have similar restriction levels.
Federal Way, WA
King County
Rainwater harvesting is legal and encouraged in Federal Way under RCW 36.89.080. Rain barrels and cisterns need no permit; indoor/plumbed systems require a permit under FWRC 13.22.
View full Federal Way rules →Redmond, WA
King County
Rainwater collection is legal and encouraged in Redmond per Washington Department of Ecology 2009 guidance; systems for non-potable outdoor use require no permit, while plumbed indoor uses require building permits.
View full Redmond rules →Key Facts Comparison
| Fact | Federal Way | Redmond |
|---|---|---|
| Legal | Yes (RCW 36.89.080) | - |
| Rain Barrel Permit | Not required | - |
| Indoor System | Permit required | - |
| LID Credit | Available | - |
| Contact | SWM (253) 835-2700 | - |
| Legal Status | - | Permitted statewide |
| Rain Barrel Permits | - | Not required |
| Ecology Policy | - | 2009 guidance |
| Plumbed System Permit | - | Required |
| Rebate Program | - | Stewardship Partners |
Highlighted rows indicate differences between cities.
Federal Way FAQ
Can I set up a rain barrel in Federal Way?
Yes. Simple rooftop rain barrels for garden use are legal without a permit under RCW 36.89.080 and are actively encouraged by the city.
Do I need a permit to plumb a rainwater system into my house?
Yes. Potable or indoor plumbed systems must comply with FWRC 13.22 and the Uniform Plumbing Code, including backflow prevention. Apply through the Federal Way Permit Center.
Redmond FAQ
Can I collect rainwater in Redmond?
Yes. Washington Ecology confirmed rooftop rainwater collection is legal with no permit required for outdoor non-potable use.
Do I need a permit for a large cistern?
Yes, if plumbed into a structure or used indoors. A building/plumbing permit from Redmond Development Services is required.
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