Lake County, CA Property Maintenance: Property Blight (2026)
Key Facts
- Governing article
- Ch. 5, Art. VII, Sec. 5-30 et seq.
- Boarding permit deadline
- Within 30 days of vacancy
- Securing deadline
- Within 10 days of permit
- Initial permit term
- 6 months, renewable once
- Board material spec
- 5/8-inch exterior plywood
- Cost recovery
- Lien under Ch. 13, Art. VI
- Enforcing officer
- County Building Official
Summary
Lake County's Vacant Structures Ordinance declares unsecured vacant buildings a public nuisance and blight. Owners must obtain a Building Official boarding permit within 30 days of vacancy, secure the structure within 10 days, and clear debris and vegetation, or face a Notice of Nuisance and county abatement with costs billed back as a lien.
The Board of Supervisors declares that vacant structures attract vagrants and criminals as prime locations to conduct illegal activities; that vacant and improperly secured structures are vulnerable to arson; that vacant structures are open to unauthorized entry; that vacant structures are a blight and cause deterioration and instability in neighborhoods; that vacant structures invite the dumping of garbage and trash; and that vacant structures pose serious threats to the public's health and safety and therefore constitute public nuisances.
Full Breakdown
Lake County Code Article VII of Chapter 5, the Vacant Structures Ordinance, finds that vacant structures "attract vagrants and criminals," invite arson and dumping, and "are a blight and cause deterioration and instability in neighborhoods" (Sec. 5-30). It applies countywide in the unincorporated area. Under Sec. 5-34 it is unlawful to maintain a vacant structure that is not boarded per Sec. 5-35, that contains waste, rubbish or debris inside, or whose premises hold waste, rubbish, debris or excessive vegetation. Securing standards in Sec. 5 and 616.
The County Building Official may instead require a security fence. A boarding permit under Sec. 5-37 is mandatory before boarding: the owner applies within 30 days of vacancy, supplies a vacancy timeline and maintenance plan, then must complete boarding within 10 days of permit issuance. The permit runs 6 months, is renewable once for up to 6 more months, and beyond that only on a documented showing of "good cause" for an additional 3 months. If the Building Official finds a violation, Sec. 5-38 authorizes a Notice of Nuisance by mail or personal service under Sec.
13-6, giving the owner a chance to respond before the county secures the structure itself, erects a fence, and pursues administrative penalties or abatement under Chapter 13. Sec. 5-39 lets the county recover abatement costs, labor, materials and administrative costs as a lien against the property, plus permit and reinspection fees set in the Building and Safety Division fee schedule under Sec. 5-9.
Violations & Fines
Entering or occupying a posted structure, or removing/defacing the required notice, is unlawful under Sec. 5-36 until repairs, demolition or a certificate of occupancy are complete. Failure to secure a vacant structure or obtain a boarding permit triggers a Notice of Nuisance; if uncorrected, the county may secure the property, erect a fence, and pursue administrative penalties or abatement under Chapter 13, recovering all costs as a lien against the property under Sec. 5-39.
Frequently Asked Questions
How long can I leave a boarded vacant structure permitted in Lake County?
What must I do to legally board up a vacant house in unincorporated Lake County?
What happens if I don't secure my vacant building after a county notice?
Does this rule apply inside Clearlake or Lakeport?
Sources & Official References
Other rules in Lake County
California rules heatmap·Compare Lake County to another location·View the California property maintenance overview
See something wrong?
Help us keep this page accurate. If you notice an error or outdated information, let us know.