Pacifica, CA Building Setbacks & Zoning: Lot Coverage Limits (2026)
Key Facts
- Max lot coverage
- 40% of building site (R-1)
- Min landscaped area
- 20% of site
- Min lot size
- 5,000 square feet
- ADU coverage exemption
- Detached ADUs 800 sq ft or less
- Reviewed via
- Site development permit, Article 32
Summary
In Pacifica's R-1 Single-Family Residential District, all structures on a lot together cannot cover more than forty percent of the building site. The Planning Division enforces this cap alongside a twenty percent minimum landscaped area requirement whenever it reviews a building permit or site development permit for a single-family lot.
(h)Maximum lot coverage by all structures: forty (40%) percent;
Full Breakdown
402 sets the development regulations for the R-1 District, and subsection (h) fixes maximum lot coverage by all structures, meaning the house, garage, and any accessory buildings combined, at forty percent of the building site. The same section pairs that cap with a landscaping floor: subsection (i) requires at least twenty percent of the site to be landscaped, with the front yard setback specifically required to be landscaped and maintained, and it limits concrete and asphalt paving to driveways and pathways only. Because the R-1 District's minimum building site is 5,000 square feet under subsection (a), the coverage cap works out to a floor area footprint of no more than 2,000 square feet on a minimum-size lot, before accounting for the required setbacks.
Site development permits, addressed in Article 32 of the zoning chapter and referenced in subsection (m), are the mechanism the Planning Division uses to confirm a proposed house, addition, or accessory structure keeps the combined building footprint within the forty percent cap. 453(c)(5), while larger detached units must still fit within the underlying district's coverage standard. 3002 rather than assume an exception applies automatically.
Violations & Fines
Building or expanding a structure so total lot coverage exceeds the forty percent cap without an approved variance is a zoning violation. Under the Municipal Code's general penalty at Section 1-2.01, it is punishable as a misdemeanor carrying up to a $1,000 fine and six months in county jail, or as an infraction with escalating fines of $100, $200, and $500 for repeat violations within a year, and each day the excess coverage remains is a separate offense. Code Enforcement can also require the property owner to remove or modify the offending structure to bring the site back into compliance.
Frequently Asked Questions
What is the maximum lot coverage allowed on an R-1 lot in Pacifica?
Does a detached accessory dwelling unit count toward the lot coverage cap?
Is there a landscaping requirement tied to the coverage limit?
What happens if my house design exceeds the forty percent coverage cap?
Sources & Official References
Other rules in Pacifica
California rules heatmap·Compare Pacifica to another location·View the California building setbacks & zoning overview
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Lot Coverage Limits in Nearby Cities
How other cities in San Mateo County handle lot coverage limits.