Thurston County, WA Home Business: Customer Traffic Restrictions (2026)
Key Facts
- By-right tier
- No exterior signage, no non-resident employees
- Special use trigger
- Regular customer visits require Chapter 21.87 permit
- Traffic rule
- No nuisance traffic; drive-through service is banned
- Customer parking
- Extra off-street space plus 1 per non-resident employee
- Employee cap
- No more than 2 non-resident employees at special-use tier
- Citation
- Thurston County Code § 21.69.040(C)(3)-(4)
Summary
Thurston County lets home-based businesses see customers on-site, but the traffic that brings creates the tightest tier of its home occupation rules. Once a business fails the by-right or administrative-review standards, County Code Section 21.69.040(C) requires a special use permit, and subsections 3 and 4 specifically cap the traffic and parking a customer-facing home occupation can generate.
C.A home occupation which fails to comply with all of the preceding provisions shall require a special use permit in accordance with Chapter 21.87, subject to the following conditions:1.Employment of more than two persons who are not bona fide residents of the premises is prohibited....3.Traffic generated by home occupations shall not cause a nuisance to neighbors. No business may provide drive-through services.4.Any business requiring customers to visit the site shall provide adequate off-street parking in addition to one (1) parking space per employee who resides off the subject property. These parking requirements are in addition to the minimum parking required for the primary residence by the district.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 77).
Full Breakdown
69 regulates home occupations in three tiers. 040(A) allows a home occupation as a matter of right only if it has no signage, no exterior storage, and employs no one but residents of the dwelling. 040(B) opens a wider administrative site plan review tier that still caps total business floor area at five hundred square feet and bars more than one non-resident employee. 87. Subsection (C)(3) is the traffic rule itself: it commands that traffic generated by home occupations shall not cause a nuisance to neighbors and flatly bars drive-through service of any kind.
Subsection (C)(4) then sets the parking that customer traffic must be paired with: any business that requires customers to visit the site must supply off-street parking beyond the home's own parking, plus one additional parking space for every employee who does not live at the property. All of this is layered on top of, not instead of, the home's normal residential parking requirement. Subsection (C)(1) reinforces the traffic limit indirectly by capping outside employment at two people who are not residents of the premises, since more employees generally means more vehicle trips to the site.
Violations & Fines
A home business that brings in customer traffic without first obtaining a special use permit under Section 21.69.040(C), or that fails to meet the parking that subsection (C)(4) requires, is not a lawful home occupation under Thurston County Code. Because the special use permit is issued under Chapter 21.87, the county's hearing examiner can attach conditions to it, and a homeowner who ignores the permit's approved traffic or parking terms is subject to code enforcement the same as any other zoning violation.
Frequently Asked Questions
Can a home-based business in Thurston County have customers visit in person?
Does Thurston County allow a drive-through at a home business?
How much extra parking does a customer-facing home business need in Thurston County?
Sources & Official References
Other rules in Thurston County
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