New construction · Costa Mesa
Can I tear down and rebuild my house in Costa Mesa?
Tear-down and rebuild is allowed in Costa Mesa on most legally conforming parcels, but the path depends on the parcel's zoning, lot conformance, and any historic / hillside / coastal overlays. R1 envelope set by FAR, side-yard setbacks, and a 27-foot height limit; small-lot rules allow narrower lots in eligible zones.
What changes the answer in Costa Mesa.
Costa Mesa uses R1, R2-MD, R2-HD, R3, and PDR districts; small-lot subdivision rules apply citywide and have driven much of the recent infill multifamily. Most R1 SFRs are ministerial; small-lot subdivisions and projects exceeding base FAR/height trigger Planning Commission review.
- R1 envelope set by FAR, side-yard setbacks, and a 27-foot height limit; small-lot rules allow narrower lots in eligible zones.
- Most R1 SFRs are ministerial; small-lot subdivisions and projects exceeding base FAR/height trigger Planning Commission review.
Source-backed note
Demolition + new construction are reviewed by City of Costa Mesa Development Services Department — Building & Safety Division alongside any required planning / coastal / hillside review.
Local authority: City of Costa Mesa Development Services Department — Building & Safety Division
Get a Costa Mesa-specific answer for your parcel.
Send us the address and we'll respond with a feasibility note that cites City of Costa Mesa Development Services Department — Building & Safety Division and the parcel's actual constraints — not a generic checklist.
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