King County, WA Building Safety: Childcare Center Rules (2026)
Key Facts
- Governing section
- K.C.C. § 16.02.152
- Family day care homes
- Build under residential code (IRC)
- Commercial child care centers
- Must meet full commercial IBC
- Applies to
- Unincorporated King County only
- Enforcement
- K.C.C. Title 23 civil violations
Summary
Unincorporated King County lets state-licensed family day care homes build to the residential code instead of the commercial code; larger stand-alone child care centers still must meet the full commercial International Building Code.
The provisions of the International Residential Code apply to the following: The construction, alteration, movement, enlargement, replacement, repair, equipment, use and occupancy, location, removal and demolition of detached one- and two-family dwellings and townhouses, not more than three stories in height above grade plane with a separate means of egress and their accessory structures, including adult family homes, foster family care homes and family day care homes licensed by the Washington state Department of Social and Health Services
Full Breakdown
King County Code § 16.02.152 replaces IBC Section 101.2's scope with a county-specific version. Exception 1.1 lets adult family homes, foster family care homes, and family day care homes licensed by the Washington State Department of Social and Health Services build under the International Residential Code instead of the full International Building Code, so long as they're detached one- or two-family dwellings or townhouses of three stories or less with a separate exit. A child care center that isn't a licensed family day care home, a stand-alone commercial facility, gets no such carve-out and must meet the full commercial IBC, including its occupancy classification and life-safety requirements.
Violations & Fines
Building without permit or code compliance triggers a stop-work order and correction notice from the King County building official, enforced through civil code violations under K.C.C. Title 23.
Frequently Asked Questions
Does Seattle follow this same rule for child care centers?
Can I build a small in-home daycare under the residential code?
What code applies to a stand-alone commercial child care center?
Sources & Official References
Other rules in King County
Compare King County to another location·View the Washington building safety overview
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