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Mason County, WA Home Business: Home Daycare (2026)

Light Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Shelton UGA NR district
Permitted use outright, §17.07.120(F)
Allyn UGA R-1 district
Permitted accessory use, §17.11.130(4)
State license required
WAC 388-150 (family child care)
Local permit
None beyond zoning use listing
Definition source
Mason County Code §17.06.010
Max civil fine
$1,000/day per violation, §15.13.050

Summary

Unincorporated Mason County allows a family child care center, in-home care for children by a resident of the dwelling and licensed under WAC 388-150, as a listed use in its own zoning code. The Shelton urban growth area's Neighborhood Residential district names it a permitted use outright at Mason County Code § 17.07.120(F); the Allyn UGA residential district lists it as a permitted accessory use to a single-family home at § 17.11.130(4).

These county ordinances apply to unincorporated areas of Mason County. Incorporated cities within the county may have their own rules that take precedence over county-level regulations.

"Child care center, family." "Family child care center" means an establishment providing for regularly-scheduled care, supervision and protection of children for periods less than twenty-four hours, in a dwelling, where such care and supervision is provided by a resident of the dwelling, and where no nonresident is regularly employed. Such establishment shall be subject to licensing and regulation requirements pursuant to WAC 388-150. ... F.Family Day Care Provider; ... (1)Home occupations, also known as cottage industries, require a special use permit unless they meet the standards as adopted in Section 17.03.021 of the Mason County Code.(2)Accessory structures including shops and detached garages (total square footage not exceeding the square footage of the primary residential structure);(3)Accessory dwelling unit (as specifically defined in this code);(4)Family child care center;(5)Group homes and adult day care facilities (up to six residents plus staff).

Full Breakdown

Mason County Code § 17.06.010 defines a family child care center as an establishment providing regularly-scheduled care, supervision and protection of children for periods less than twenty-four hours, in a dwelling, where such care and supervision is provided by a resident of the dwelling, and where no nonresident is regularly employed, and states the use shall be subject to licensing and regulation requirements pursuant to WAC 388-150. That state license, not a county land-use permit, is what actually authorizes the business of caring for children; the county's role is limited to confirming the use fits the zoning district.

In the Shelton UGA's Neighborhood Residential (NR) district, § 17.07.120(F) lists 'Family Day Care Provider' directly among the district's permitted uses, alongside single-family dwellings and duplexes, with no special use permit required. In the Allyn UGA's R-1 single-family district, § 17.11.130(4) lists 'Family child care center' as an accessory use permitted alongside home occupations, accessory dwelling units, and group homes; the same accessory-use listing recurs in the Allyn UGA's other residential districts and the Belfair UGA's equivalent districts. By contrast, a commercial child care center, one not run out of a resident's home, is a special-permit use in most rural residential districts. Operators still need whatever building, fire, and business-license approvals the county requires of any home-based use.

Violations & Fines

A family child care use that exceeds what its zoning district allows, or that operates without the state license required by WAC 388-150, is a Title 17 zoning violation. Mason County enforces Title 17 uses under Title 15, Chapter 15.13: the review authority can issue a notice of civil violation and assess a civil fine of up to $1,000 per day per violation under § 15.13.050(b), and a willful violation is a misdemeanor punishable by up to $500 and 90 days in jail under § 15.13.020(c).

Frequently Asked Questions

Can I run a licensed home daycare in unincorporated Mason County?
Yes. A family child care center, in-home care licensed under WAC 388-150, is a permitted use in the Shelton UGA's Neighborhood Residential district under § 17.07.120(F) and a permitted accessory use in the Allyn UGA residential districts under § 17.11.130(4). No special county land-use permit is required beyond the state license.
What's the difference between a family and a commercial child care center under county zoning?
Mason County Code § 17.06.010 defines a family child care center as care by a resident, in the resident's dwelling, with no nonresident regularly employed. A commercial child care center is a separate use category that most rural residential districts only allow with a special use permit, while family child care is listed as a permitted or accessory use in the county's urban growth area residential districts.
Does the county require a separate zoning permit for a home daycare?
No separate county land-use permit is required where family child care is a listed permitted or accessory use; the operator still needs the state family child care license under WAC 388-150 and any building or fire approvals that apply to the home.

Sources & Official References

Other rules in Mason County

All Mason County rules

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