Local jurisdiction · San Mateo County
Half Moon Bay Zoning, Planning & Building Codes
What you can build in Half Moon Bay depends on its local zoning and planning code, layered on the California Building Standards Code. Ask GoCodebook about any Half Moon Bay address.
Key points
Half Moon Bay is a city in San Mateo County, California. Like every California jurisdiction, Half Moon Bay regulates development through a local zoning and planning code (often Title 18 Zoning) — the rules that determine allowed uses, setbacks, height limits, FAR, density and parking — on top of the statewide California Building Standards Code (Title 24).
Those local rules change at the city line, so a remodel, ADU or use that is allowed nearby may be restricted in Half Moon Bay. GoCodebook reads the Half Moon Bay ordinance with state code and answers your zoning, planning or permit question with the controlling citation.
Zoning & planning in Half Moon Bay
Half Moon Bay's zoning code (often Title 18 Zoning) assigns each parcel to a district (residential, commercial, industrial, mixed-use and overlays) that sets the allowed uses, setbacks, height, FAR, lot coverage and density. Conditional uses, variances and design review may require discretionary planning approval.
Ask GoCodebook "what's the zoning for [address] in Half Moon Bay?", "what setback / FAR applies?", or "can I build an ADU or addition here?" and get a cited answer. See coverage.
Building permits & remodeling in Half Moon Bay
Construction and remodeling in Half Moon Bay must comply with the adopted Building, Residential, Electrical, Plumbing, Energy and Fire codes, plus any Half Moon Bay local amendments — and most work needs a building permit.
Additions, remodels and change-of-use can trigger extra requirements (accessibility, energy upgrades, fire). GoCodebook flags what applies to your Half Moon Bay project before you apply.
Where to read the Half Moon Bay code
The Half Moon Bay municipal and zoning code is published on eCode360 — view the official Half Moon Bay code library. That lets you read the ordinance section by section.
GoCodebook goes beyond browsing eCode360 (see how they compare): it reads the Half Moon Bay ordinance together with the California Building Standards Code and answers your question — zoning, setbacks, FAR, height, ADUs, permits — with the controlling citation for your parcel.
ADUs, housing & tenant rules in Half Moon Bay
California's statewide ADU laws override many local restrictions, so Half Moon Bay must allow accessory dwelling units that meet state size, setback and parking standards. Rentals may also be subject to rent control and AB 1482 protections.
Whether a specific Half Moon Bay property is covered depends on its zoning, age and ownership — exactly the kind of question GoCodebook answers with a citation.
Who this affects
Frequently asked questions
What is the zoning code for Half Moon Bay?
Half Moon Bay adopts a local zoning ordinance (often Title 18 Zoning) that sets allowed uses, setbacks, height, FAR and density by district, published on eCode360, alongside the California Building Standards Code. Ask GoCodebook for your parcel's zoning and what it allows.
What are the setback and FAR rules in Half Moon Bay?
Setbacks, floor-area ratio (FAR), height and lot coverage in Half Moon Bay are set by your parcel's zoning district. GoCodebook returns the exact standards for your address with a citation.
Do I need a permit to remodel or build in Half Moon Bay?
Most new construction, additions and many remodels in Half Moon Bay require a building permit and must meet the adopted Title 24 codes plus local amendments. GoCodebook tells you what applies before you apply.
Can I build an ADU in Half Moon Bay?
Generally yes — California's statewide ADU law requires Half Moon Bay to permit ADUs that meet state standards, even where local rules are stricter.
Ask about any Half Moon Bay property
Get a cited, plain-English answer on Half Moon Bay zoning, setbacks, FAR, ADUs, remodels and permits — for any address.
Start Free Trial