Industrial Noise: Redmond vs Seattle
How do industrial noise rules compare between Redmond, WA and Seattle, WA?
Redmond and Seattle have similar restriction levels.
Redmond, WA
King County
Industrial-source noise received in Redmond residential areas may not exceed 60 dBA daytime and 50 dBA nighttime under RMC 6.32 and WAC 173-60. Overlake and SE Redmond industrial zones are monitored.
View full Redmond rules →Seattle, WA
King County
Industrial noise in unincorporated King County follows WAC 173-60 EDNA classes adopted via KCC 12.86. Class C industrial to Class A residential limits are 60 dBA day and 50 dBA night at the boundary.
View full Seattle rules →Key Facts Comparison
| Fact | Redmond | Seattle |
|---|---|---|
| Day Limit | 60 dBA at residential | - |
| Night Limit | 50 dBA at residential | - |
| Tonal Penalty | 5 dBA added | - |
| Code | RMC 6.32 / WAC 173-60 | KCC 12.86, WAC 173-60-040 |
| C to A Day | - | 60 dBA max |
| C to A Night | - | 50 dBA max |
| B to A Day | - | 57 dBA max |
| Measurement | - | Receiving property line |
Highlighted rows indicate differences between cities.
Redmond FAQ
What is the industrial noise limit in Redmond?
60 dBA during the day and 50 dBA at night, measured at the nearest residential property line. Tonal or impulsive noise has a 5 dBA penalty.
Who investigates industrial noise complaints?
Redmond Code Enforcement at (425) 556-2900 handles RMC 6.32 violations; Puget Sound Clean Air Agency handles combined air and noise issues.
Seattle FAQ
Where is industrial zoning located in King County?
Major industrial districts include the Duwamish corridor, Kent Valley, Tukwila, and SeaTac airport-area industrial zones. Check King County iMap for zoning classifications.
How do I file an industrial noise complaint?
Contact King County Code Enforcement at 206-296-6680 or use eCitations online. For air quality plus noise, contact Puget Sound Clean Air Agency (PSCAA).
Compare other topics
See how Redmond and Seattle compare on other ordinance categories.
Want to add a third city?
Use our full comparison tool to compare up to three cities.
Open Comparison Tool