Home Business in Walla Walla County, WA (2026)
4 rules for unincorporated Walla Walla County, Washington.
Verified from official government sources
Zoning & Home Occupation Permits
Unincorporated Walla Walla County treats a home business as a Type I or Type II 'home occupation,' each capped in size and confined to one operation per lot. A Type I permit tops out at 400 square feet of the residence or accessory structure; Type II allows up to 800 square feet plus a defined outdoor activity area. Both go through Community Development's administrative review under Walla Walla County Code Section 14.09.045.
Walla Walla County Home Occupation Zoning Rules
Some RestrictionsWalla Walla County Code § 17.08.260(A), (C)-(D), (I)
"Home occupation" means an occupation customarily conducted entirely within a dwelling or out building and carried on by the inhabitants thereof, which use is clearly incidental and secondary to the dwelling for dwelling purposes and does not change the character thereof. Home occupations are subject to the following conditions: ... C.Legal lots of record are only allowed one home occupation, m...
Signage Rules
Unincorporated Walla Walla County bans exterior signage for any home occupation outright. Walla Walla County Code Section 17.08.260(B) requires that a permitted home business have no exterior display, no exterior sign, and no exterior storage of materials beyond one occupation-related vehicle, so a home-based business cannot advertise itself with yard signs, window signs, or any other outdoor marker.
Walla Walla County Home Business Sign Ban
Heavy RestrictionsWalla Walla County Code § 17.08.260(B)
B.There shall be no exterior display, no exterior sign, no exterior storage of materials or equipment (excluding one occupation related vehicle) and no variation from the residential character of the principal building. No special equipment different from the normal residential equipment shall be installed to the exterior, and no offensive noise, vibration, smoke, dust, odors, heat or glare sha...
Customer Traffic Restrictions
In unincorporated Walla Walla County, a home occupation may see customers on-site only under strict caps written into the permit itself. A Type I permit allows just one customer per hour; a Type II permit raises that to two customers per hour. Both tiers confine visits to Monday through Friday, 8 a.m. to 5 p.m., under Walla Walla County Code Sections 17.08.260(F) and 17.08.261(E), with no customer traffic allowed at any other time.
Walla Walla County Home Occupation Customer Limits
Some RestrictionsWalla Walla County Code §§ 17.08.260(F), 17.08.261(E)
F.No more than one customer per hour is allowed on-site. Monday—Friday. 8 a.m.—5 p.m., subject to applicable requirements of the International Building Code and International Fire Code adopted by Walla Walla County and the State of Washington. No customers are allowed outside of those hours. ... E.A maximum of two customers per hour are permitted on-site Monday—Friday, 8 a.m.—5 p.m., subject to...
Home Daycare
A licensed family day care home in unincorporated Walla Walla County can serve up to twelve children in a 24-hour period, must run out of the principal residence, fully enclose any outdoor play area, and keep outdoor play equipment at least fifteen feet from side property lines, under WWCC 17.08.179.
Walla Walla County Home Daycare Zoning Rules
Some RestrictionsWalla Walla County Code § 17.08.179
17.08.179 - Day care, family. "Day care, family" means a child day care facility that provides child day care and early learning services in the family living quarters of the provider's home for not more than twelve children in a 24-hour period; provided, any such family day care is licensed by the state or county and conducted in accordance with state and county requirements. Services can be p...
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