Grading & Drainage: Bellevue vs Redmond
How do grading & drainage rules compare between Bellevue, WA and Redmond, WA?
Redmond has fewer restrictions than Bellevue.
Bellevue, WA
King County
Bellevue requires grading permits for moving over 50 cubic yards of earth or disturbing over 2,000 sq ft. Drainage must meet the 2022 Stormwater Management Manual for Western Washington.
View full Bellevue rules →Redmond, WA
King County
Redmond requires a grading permit for earthwork over 50 cubic yards or grading in critical areas under RMC Title 15, with drainage review by Public Works based on the DOE Stormwater Manual.
View full Redmond rules →Key Facts Comparison
| Fact | Bellevue | Redmond |
|---|---|---|
| - | - | |
| Permit trigger | - | 50 cubic yards cut or fill |
| Critical area | - | Any grading needs review |
| Wall engineering | - | Over 4 ft exposed |
| Drainage | - | DOE manual standards |
Highlighted rows indicate differences between cities.
Bellevue FAQ
Redmond FAQ
Do I need a permit to regrade my Redmond yard?
Yes if cut or fill exceeds 50 cubic yards, if it is on a steep slope, or if it is inside a critical area like a stream buffer.
Can I divert drainage onto my neighbor's lot?
No, Redmond requires grading designs that keep runoff on the originating property or into an approved drainage system.
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