Build cost breakdown · Half Moon Bay, CA Verified August 2026
Prefab Homes in Half Moon Bay, CA: 2026 Cost & Permit Guide
What manufactured and modular homes actually cost on the San Mateo Coast — from active MLS data, coastal permit requirements, and recent project records.
Manufactured homes in Half Moon Bay are listed at $399,000–$549,000
Based on six active MLS listings tracked on Zillow as of mid-2024; does not include new-construction site and permit costs.
- $399,000 Active listing low Oceanview Ave & Sunset Ter listings, mid-2024
- $549,000 Active listing high Creekside Dr #143, mid-2024
- $424,500 Approximate median Across 6 active Half Moon Bay listings
- 360 Canada Cove sites 55+ manufactured home community, Half Moon Bay coast
Half Moon Bay Prefab Due-Diligence Checklist
- Confirm whether the parcel falls within the California Coastal Commission's coastal zone before budgeting permit timelines
- Verify whether a Coastal Development Permit (CDP) or Emergency CDP will be required through the City of Half Moon Bay Planning Department
- Determine if the site is near Pilarcitos Creek floodplain — a dedicated floodplain study may be required before permits advance
- Check whether CEQA review (Initial Study / Mitigated Negative Declaration) applies to the proposed development scope
- Confirm NPDES C3 stormwater compliance requirements with San Mateo County / Regional Water Quality Control Board
- If subdividing land for a manufactured home community, initiate Tentative Parcel Map process with the City early in planning
- Assess material specs for coastal fog and marine layer exposure — moisture resistance affects long-term maintenance costs
What Prefab Homes Cost in Half Moon Bay Right Now
Based on active MLS listings tracked on Zillow as of mid-2024, there were six manufactured and mobile homes for sale in Half Moon Bay, priced from $399,000 to $549,000. Specific recorded transactions include a 2BD/2BA unit at 54 Oceanview Ave listed at $399,000, a comparable unit at 6 Sunset Ter #6 also at $399,000, and a unit at Creekside Dr #143 listed at $549,000 — the top of the current local range. Mid-range examples cluster between $420,000 (77 Creekside Dr #77) and $499,000 (12 Dolphin Ct #12). The median across the active range works out to roughly $424,500 per home. These figures reflect manufactured homes in existing communities, not turnkey new construction on raw land, which would carry additional site and permit costs.
- Entry price point: $399,000 (Oceanview Ave and Sunset Ter listings)
- Top of active range: $549,000 (Creekside Dr #143)
- Rough midpoint of the six-listing sample: ~$424,500
- All active listings are 2BD/2BA units in established Half Moon Bay communities
Coastal Permit Requirements: What New Development Actually Triggers
Any manufactured home construction within Half Moon Bay's coastal zone requires a Coastal Development Permit (CDP), issued jointly under the authority of the City of Half Moon Bay and the California Coastal Commission. The Stone Pine Cove affordable housing project at 830 Stone Pine Road — a 46-unit plus manager's unit manufactured home development on approximately five City-owned acres — illustrates the full permit sequence in practice. An Emergency CDP was issued December 11, 2023; a follow-up standard CDP application was filed February 9, 2024, as required by city protocol. Beyond the CDP, new manufactured home developments also trigger a CEQA review (Initial Study or Mitigated Negative Declaration filed with the State Clearinghouse) and, where subdivision is involved, a Tentative Parcel Map through the City of Half Moon Bay. NPDES C3 stormwater compliance and a Stormwater Management Plan are additionally required by San Mateo County and the Regional Water Quality Control Board.
- Coastal Development Permit (CDP): required for all new coastal zone construction
- Emergency CDP possible as an interim measure, but standard CDP must follow
- CEQA Initial Study / Mitigated Negative Declaration: state-level environmental review
- NPDES C3 stormwater plan: San Mateo County / Regional Water Quality Control Board
- Tentative Parcel Map: required for any new manufactured home subdivision
Established Communities and Notable Projects
Two named communities anchor the Half Moon Bay manufactured home market. Canada Cove, a 360-site 55+ community on the coast, is described in research as the only age-restricted manufactured home community of its scale in the Bay Area — originally an artichoke farm purchased in 1970. The community sits at Half Moon Bay, CA 94019 and reflects a mature, amenity-oriented segment of the local market. On the affordable end, the publicly funded Stone Pine Cove project at 830 Stone Pine Road is adding 46 affordable manufactured homes plus one manager's unit on roughly five acres of City-owned land; pre-applications were accepted through April 18, 2025, per city records. These two projects together illustrate the breadth of the segment — from market-rate coastal living to income-restricted workforce housing — both built on a manufactured home foundation.
- Canada Cove: 360 sites, 55+ community, Half Moon Bay coastside
- Stone Pine Cove: 46 affordable units + 1 manager's unit, ~5 acres, City-owned land
- Stone Pine Cove CDP: Emergency permit issued Dec 11, 2023; follow-up filed Feb 9, 2024
Modular and Prefab Options: Size Range and Suppliers Active in the Area
For buyers interested in new custom modular construction rather than existing manufactured homes, the market has demonstrated viability. Irontown Modular — a Utah-based modular builder noted in research — delivered a custom two-story coastal modular home to Half Moon Bay arriving 95% complete from the factory, with a panelized garage and wrap-around porch incorporated directly into the modules. That project reflects the design flexibility available in the modular format even under coastal architectural constraints. According to Impresa Modular's California directory, prefab and modular options for the Half Moon Bay area range from 500 to over 3,500 square feet. SilverCrest lists 39 manufactured and modular home configurations available for the area. These figures give a practical sense of inventory breadth, though actual delivered cost on a specific parcel will depend heavily on site prep, utility connections, and — critically in Half Moon Bay — the coastal permitting timeline.
- Floor plan range: 500 to 3,500+ sq ft per Impresa Modular's CA directory
- SilverCrest lists 39 manufactured/modular configurations for the Half Moon Bay market
- Irontown Modular documented delivery: two-story coastal home, 95% factory-complete
- Wrap-around porches and coastal architectural detailing achievable in modular format
Climate and Site Factors That Affect Construction Timelines
Half Moon Bay's coastal geography introduces site conditions that buyers and developers should price into project schedules. Coastal fog and marine layer are typical for the coastside and can affect both outdoor construction timelines and material selection — moisture-resistant framing and cladding choices carry different cost profiles than standard inland specs. The Pilarcitos Creek floodplain is a site-specific concern: new development near the creek requires a dedicated floodplain study before permits advance, adding time and cost to due diligence. The city's position within the California Coastal Commission's jurisdiction means any project that might affect coastal resources faces a more involved review process than comparable work in inland San Mateo County cities. Buyers evaluating raw lots should factor in these variables before comparing Half Moon Bay land prices to parcels outside the coastal zone.
- Marine layer and coastal fog: practical impact on construction scheduling and material specs
- Pilarcitos Creek floodplain: requires dedicated floodplain study for new development nearby
- Coastal Commission jurisdiction: adds review layer not present for inland San Mateo County sites
- Coastal zone designation applies city-wide, not just to beachfront parcels
FAQ
What is the price range for manufactured homes currently for sale in Half Moon Bay?
Based on active MLS listings tracked as of mid-2024, manufactured homes in Half Moon Bay were listed between $399,000 and $549,000, with a rough median of approximately $424,500 across the six active listings on record.
Do I need a special permit to place a prefab or manufactured home in Half Moon Bay?
Yes. Because Half Moon Bay falls within the California Coastal Commission's coastal zone, any new manufactured home construction requires a Coastal Development Permit (CDP) from the City of Half Moon Bay and/or the Coastal Commission. A CEQA environmental review is also typically required, along with NPDES stormwater compliance and, for subdivision projects, a Tentative Parcel Map.
How long does the coastal permitting process take in Half Moon Bay?
The DataBrief does not include a published typical timeline for CDP approvals in Half Moon Bay. However, the Stone Pine Cove project record — Emergency CDP issued December 2023, follow-up CDP filed February 2024 — illustrates that the process involves sequential applications and can extend across multiple permit cycles. Prospective builders should consult the City of Half Moon Bay Planning Department for current processing estimates.
Are there established manufactured home communities in Half Moon Bay?
Yes. Canada Cove is a 360-site 55+ manufactured home community on the Half Moon Bay coast, described in research as the only Bay Area community of its type and scale. Stone Pine Cove at 830 Stone Pine Road is a newer affordable manufactured home development with 46 units plus a manager's unit on approximately five acres of City-owned land.
Can a modular home be built to meet coastal design standards in Half Moon Bay?
Research documents at least one completed example: Irontown Modular delivered a custom two-story coastal modular home to Half Moon Bay that arrived 95% complete from the factory, with a panelized garage and wrap-around porch built into the module design. This indicates that coastal architectural requirements can be addressed within the modular construction format, though specific design compliance depends on the individual parcel and permit conditions.
What environmental studies might be required for a new prefab home on raw land in Half Moon Bay?
Depending on site location, new development may require a CEQA Initial Study or Mitigated Negative Declaration (filed with the State Clearinghouse), an NPDES C3 Stormwater Management Plan (required by San Mateo County and the Regional Water Quality Control Board), and — for sites near Pilarcitos Creek — a dedicated floodplain study. A Tentative Parcel Map is additionally required for subdivision-type development.
What size prefab homes are available for the Half Moon Bay market?
Per Impresa Modular's California directory, prefab and modular home options for the Half Moon Bay area range from approximately 500 to over 3,500 square feet. SilverCrest separately lists 39 manufactured and modular home configurations available for this market.
Coastal permit requirements and site conditions vary significantly by parcel in Half Moon Bay. Reviewing quotes from builders familiar with CDP and CEQA workflows can surface timeline and cost differences that general estimates miss.
Coastal permit requirements and site conditions vary significantly by parcel in Half Moon Bay. Reviewing quotes from builders familiar with CDP and CEQA workflows can surface timeline and cost differences that general estimates miss.
Compare Local Prefab Quotes in Half Moon Bay (opens in new tab)| Address | List Price | Notes |
|---|---|---|
| 54 Oceanview Ave | $399,000 | Entry-level listing |
| 6 Sunset Ter #6 | $399,000 | Entry-level listing |
| 77 Creekside Dr #77 | $420,000 | Mid-range |
| 33 Sailfish Ct #33 | $430,000 | Mid-range |
| 12 Dolphin Ct #12 | $499,000 | Upper-mid range |
| Creekside Dr #143 | $549,000 | Top of active range |
Costs based on 2025–2026 data from public sources + local permit records.