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San Luis Obispo County, CA Property Maintenance: Property Blight (2026)

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

Key Facts

Nuisance test
Section 108.1.5, 11 conditions
Abatement methods
Repair, rehabilitation, demolition or removal
County self-help
County can abate if owner defaults
Confirmation hearing
15+ days after notice served
Payment grace period
15 days before lien recorded
Lien priority
Parity with property tax liens
Interference
Separate violation, Sec. 19.80.050

Summary

San Luis Obispo County declares any building meeting the Dangerous Building Code's eleven-part test in IPMC Section 108.1.5 a public nuisance outright, then orders it repaired, rehabilitated, demolished or removed under Section 19.80.030. If the owner defaults, the County can do the work itself and bill the parcel.

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

A building defined as a dangerous building in Section 108.1.5 of the Dangerous Building Code is declared to be a public nuisance and shall be abated by repair, rehabilitation, demolition or removal in accordance with the procedure specified in the Dangerous Building Code. ... The cost of any demolition or repair carried out under the Dangerous Building Code, including the entire cost of the services rendered by the County, shall be charged against the real property which is the site of the structure, except as provided in this section. ... The board of supervisors may, at such hearing, order that the cost of abatement be specially assessed against the parcel, if the record owner does not pay the costs of abatement within fifteen days after the confirmation hearing and that a notice of abatement lien be recorded if payment is not made within that time.

Full Breakdown

5 if it shows any one of eleven conditions: fire, earthquake, wind or flood damage likely to cause partial or complete collapse; a foundation likely to fail; egress that is unsafe, blocked or non-conforming; construction so unsound it cannot resist one and one-half times its designed load; a dwelling made unsanitary or unfit for habitation by inadequate maintenance, light, ventilation or plumbing; or an abandoned structure that has become an attractive nuisance to children. 030 converts any of those findings into a declared public nuisance, abated by the Dangerous Building Code's own procedure rather than a generic nuisance action.

020(6). 020(8) lets the code official ask the Board of Supervisors for an order allowing the County to vacate, repair or demolish the building itself, sell salvage, and clean the lot, returning any surplus sale proceeds to the rightful owner. 040 then recovers cost: the code official keeps an itemized account, serves notice of the proposed assessment at least fifteen days before a Board confirmation hearing, and if the owner has not paid within fifteen days after that hearing, the Board can specially assess the parcel and record a notice of abatement lien with the County Recorder, at parity with property tax liens under Government Code Section 25845.

Violations & Fines

Ignoring a correction order lets the County itself vacate, repair or demolish the structure and charge every dollar of that work to the property. Unpaid abatement costs become a special assessment collected on the regular tax roll, carrying the same delinquency penalties, interest and foreclosure exposure as ordinary property taxes once recorded as a lien. Separately, Section 19.80.050 makes it a violation to hinder or interfere with the code official's enforcement work.

Frequently Asked Questions

What makes a building "dangerous" under San Luis Obispo County's code?
Section 108.1.5 of the Dangerous Building Code lists eleven qualifying conditions, including fire, earthquake or flood damage likely to cause collapse, unsafe or non-conforming means of egress, a foundation likely to fail, and a dwelling made unfit for human habitation by neglect, decay or bad plumbing. Meeting any one condition triggers a nuisance declaration under Section 19.80.030.
Who pays if the County ends up fixing or demolishing the building?
The property owner does. Section 19.80.040 charges the entire cost of county-performed repair or demolition against the real property, and if the owner has not paid within fifteen days of the Board of Supervisors' confirmation hearing, the County records a notice of abatement lien that collects on the tax roll like ordinary property taxes.
Can an owner appeal a dangerous-building notice?
Yes. Section 19.80.020(5) requires every notice to disclose the right to appeal, and where the county orders vacation and repair or demolition, the owner has ten days in writing to choose which option to pursue before the code official can act further under the order.
Does an abatement lien beat a mortgage on the property?
It can. Section 19.80.040(4) gives a recorded abatement lien parity with state and county property tax liens under Government Code Section 25845, and it carries the same priority as a recorded money judgment lien, continuing in effect until the County releases it.

Sources & Official References

Other rules in San Luis Obispo County

All San Luis Obispo County rules

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