In unincorporated Whatcom County, a business run from home is a home occupation, an accessory use that must stay clearly secondary to the residence. The county zoning code sets the conditions, and Washington's B&O tax applies to the income.
Whatcom County's zoning code lets residents operate a home occupation in residential and rural zones as long as it stays incidental to living there. Typical conditions keep the business inside the dwelling, cap the floor area used, limit outside employees, and prevent noise, odor, or traffic beyond normal residential levels. Washington has no income tax, but every business owes the state Business and Occupation (B&O) tax through the Department of Revenue. Inside Bellingham, Lynden, Ferndale, or Blaine, that city's zoning and business license apply instead. Recorded HOA covenants add a separate private layer.
Running a home occupation that outgrows its accessory limits, or without required approval, exposes you to county zoning enforcement and orders to stop. HOA covenants are enforced separately in civil court.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
Whatcom County, WA
Whatcom County and its cities let homeowners put up holiday decorations without a permit. Keep displays clear of sidewalks and sight lines, use outdoor-rated...
Whatcom County, WA
Whatcom County communities allow temporary garage-sale signs on private property, but keep them out of the public right-of-way and off utility poles. Take ev...
Whatcom County, WA
Whatcom County and Bellingham broadly allow political and temporary signs on private property as protected speech. Only official traffic signs belong in the ...
Whatcom County, WA
Bellingham requires every residential rental to register and pass a periodic safety inspection under its Rental Registration and Safety Inspection Program (B...
Whatcom County, WA
Washington has statewide just-cause eviction under RCW 59.18.650. A Whatcom County landlord cannot end a tenancy or refuse to renew except for a legally list...
Whatcom County, WA
Washington no longer leaves rent to the open market. Since HB 1217 took effect in May 2025, annual residential rent increases are capped statewide. For 2026 ...
See how Whatcom County's zoning restrictions rules stack up against other locations.
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