Marin County, CA Swimming Pools & Spas: Pool Permits (2026)
Swimming pool permit rules in Marin County, CA, also covering above-ground pools, in-ground pools, and spa installations, set fencing, barrier, alarm, and inspection requirements.
Key Facts
- Code Section
- MCC §§ 19.04.010, 19.04.020, 19.04.050, 19.04.055
- Permit Application Validity
- 1 year from planning approval
- Permit Validity After Issuance
- Must commence work within 1 year; complete within 2 years
- Adopted Code Edition
- 2013 California Building Standards Code (Title 24)
- Issuing Authority
- Marin County Community Development Agency, Building and Safety Division
Summary
Construction of a swimming pool in unincorporated Marin County requires a building permit issued by the Community Development Agency Building and Safety Division, which enforces the adopted California Building, Plumbing, Electrical, and Energy Codes.
Every permit issued by the building official under the provisions of this chapter shall expire by limitation and become null and void, if the building or work authorized by such permit has not substantially commenced within one year from the date of such permit. All permits shall expire... if the building or work authorized by such permit is not completed within two years from the date of such permit issuance.
Full Breakdown
Under MCC § 19.04.010, Marin County has adopted the California Building Code, California Residential Code, California Plumbing Code, California Electrical Code, California Mechanical Code, California Energy Code, and California Green Building Standards Code (all in their 2013 editions, as amended). The Building and Safety Division (MCC § 19.04.020) is responsible for plan review, permit issuance, and inspections. Permit application expirations are governed by MCC § 19.04.050: applications expire if a permit is not issued within one year of planning approval. Permits expire under MCC § 19.04.055 if work has not substantially commenced within one year of issuance, or if work is not completed within two years. Permit fees are set by the master fee and service schedule adopted by the Board of Supervisors (MCC § 19.04.032), with a 5% technology enhancement surcharge.
Violations & Fines
Performing pool construction without a permit triggers MCC § 19.04.029 penalties: fines of 2 to 4 times the permit fee, with each day a separate offense. The Chief Building Official may record a notice of violation and lien against the property under MCC § 19.04.033, and may withhold further permits or utility connections under MCC § 19.04.034.
Frequently Asked Questions
Who issues my pool permit if I live in unincorporated Marin?
How long does my pool permit stay valid?
What happens if I build a pool without a permit?
Sources & Official References
Other rules in Marin County
California rules heatmap·Compare Marin County to another location·View the California swimming pools & spas overview
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