Home Business in Thurston County, WA (2026)
4 rules for unincorporated Thurston County, Washington.
Verified from official government sources
Zoning & Home Occupation Permits
Thurston County allows home occupations by right in any residential district, but bars exterior alterations, outdoor storage, signage, and outside employees: stricter setups need site plan review or a special use permit.
Thurston County Home Occupation Zoning Rules
Some RestrictionsThurston County Code § 21.69.040(A)
A.Home occupations are permitted as a matter of right in any residential district provided that: 1.No exterior structural alterations are made to accommodate the occupation; 2.No merchandise or stock in trade is sold or displayed on any exterior portion of the premises; 3.No equipment or material is stored, altered or repaired on any exterior portion of the premises; 4.No person or persons othe...
Signage Rules
A home occupation sign in unincorporated Thurston County is capped at two square feet under Code Section 21.75.180(B)(2), must be flush-mounted against the building rather than freestanding, and cannot be illuminated internally or at night. Off-premises advertising for a home business is banned outright, and any sign that does not meet these limits can be cited as a misdemeanor under Section 21.75.250.
Thurston County Home Occupation Sign Limit
Some RestrictionsThurston County Code § 21.75.180(B)(2), § 21.75.250
B.Size and Type. ... 2.Home Occupations. Home occupation signs relate to home occupation as defined in the Zoning Ordinance. The sign shall be flush-mounted and shall not exceed two square feet in area, and cannot be internally illuminated, nor illuminated at night. Off-premises signs are prohibited. ... 21.75.190 - Variances. Variances from provisions of this chapter may be granted by the hear...
Customer Traffic Restrictions
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.
Thurston County Home Business Customer Traffic Rules
Significant RestrictionsThurston County Code § 21.69.040(C)(3)-(4)
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...
Home Daycare
Family day care homes are a permitted use in every residential-allowing zone of the Lacey UGA, no special permit needed.
Thurston County Family Day Care Homes
Few RestrictionsThurston County Code § 21.65.020
A family day care home shall be permitted in all zoning districts of the Lacey UGA wherein residential structures are permitted, subject to the following conditions: A. Such homes shall comply with all building, fire safety and health codes; B. The lot size, building size, setback and lot coverage shall conform to the standards of the zoning district in which it is located unless such structure...
All Thurston County ordinances
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