Build cost breakdown · Pacifica, CA Verified August 2026
Prefab Homes in Pacifica, CA: A 2026 Cost & Permit Guide
What manufactured, modular, and tiny homes actually cost on the San Mateo Coast — and what to know before you build.
Manufactured homes in Pacifica range from $150,000 to $400,000 (median ~$250,000); tiny homes start near $50,000.
Based on Zillow listing data and local market research as of mid-2026. Costs vary by size, site prep, and foundation type.
- $150K–$400K Manufactured home (Pacifica) Median ~$250K per local listings
- $50K–$150K Tiny home Median ~$90K; site prep extra
- $180K–$280K Mobile home (560 sq ft, Pacifica) Per Zillow listing, 416 4th Ave, Pacifica
- ~60 days ADU permit lead time City of Pacifica Planning & Building Dept.
Prefab Home in Pacifica: Key Verification Checklist
- Confirm zoning designation for your parcel at the City of Pacifica Planning & Building Department before selecting a unit type
- Verify whether the unit is California HCD-compliant (required for all manufactured and modular homes)
- Obtain a building permit from the City of Pacifica — allow ~30 days for manufactured home installation permits
- If placing as an ADU, apply for a separate ADU permit — budget ~60 days for approval under current state law
- For tiny homes on wheels (THOWs), confirm specific Pacifica zoning allowance before purchase — THOWs are regulated as RVs in California
- Request coastal/seismic engineering certification from the manufacturer or dealer for Seismic Zone 4 and high-wind conditions
- Evaluate salt-air corrosion resistance of metal components (frames, fasteners, HVAC) and request maintenance documentation
What Prefab Options Are Available in Pacifica?
Active inventory is thin. At time of research, only two mobile or manufactured homes were listed for sale within Pacifica city limits on Zillow — a meaningful constraint for buyers who want to purchase an existing unit rather than commission a new build. One active listing, a 560 sq ft mobile home at 416 4th Ave, Pacifica, CA 94044, was priced in the $180,000–$280,000 range (per Zillow listing data).
For buyers willing to look just outside city limits, nearby South San Francisco — within about four miles — offers more selection. Alliance Manufactured Homes at 1700 El Camino Real, South San Francisco, lists 1–2 bedroom units ranging from 399 to 648 sq ft, with pricing observed between $80,000 and $180,000 (median ~$130,000). A larger 3-bedroom, 2-bath manufactured home at 29 Yacht Ln, Daly City (a neighboring city) measures 1,760 sq ft and is listed through NextGen Properties, illustrating the range of product available in the immediate region.
On the new-construction side, Pacifica Homes, Inc. offers floor plans spanning 1,042 sq ft (2bd/2ba) to 1,520 sq ft (3bd/2ba), with widths up to 26'8" x 60' in length. Impresa Modular is another firm identified in research as offering fully custom modular homes in Pacifica, with in-house design and engineering services. Both are cited here as examples found in local market research, not as endorsements.
- Only 2 mobile/manufactured homes actively listed in Pacifica at time of research (Zillow)
- Nearby South San Francisco units available from ~$80,000 for smaller footprints
- New-build floor plans from local dealers range roughly 1,000–1,500+ sq ft
Prefab Home Costs in Pacifica: What the Numbers Show
The cost spread for prefab housing in Pacifica is wide, reflecting differences in type, size, and site conditions.
Manufactured homes in Pacifica proper carry a price range of $150,000–$400,000, with a median near $250,000, based on local listing and dealer data. That median is substantially above what buyers find in inland California markets, which is consistent with San Mateo County's broader land and cost premiums.
Tiny homes show a lower entry point — $50,000 on the low end, up to $150,000 at the high end, with a median around $90,000. Pacifica Tiny Homes, a firm identified in local research, markets customizable models designed for everyday living and offers a try-before-you-buy arrangement through Airbnb-hosted stays in customer-owned units. Tiny homes on wheels, however, face separate regulatory treatment (see Permits section below).
Site costs are not included in unit prices. Foundation work, utility hookups, grading, and coastal-grade anchoring can add meaningful expense to any of the above figures — particularly given Pacifica's seismic and wind exposure.
- Manufactured home median: ~$250,000 (Pacifica local listings)
- Tiny home median: ~$90,000 (unit cost only, before site work)
- 560 sq ft mobile home at 416 4th Ave listed at $180K–$280K per Zillow
Permits and Regulatory Requirements in Pacifica
California's permitting framework for prefab housing involves both state-level oversight and local city approval — and Pacifica homeowners need to navigate both layers.
Manufactured and modular homes must comply with California HCD (Department of Housing and Community Development) construction standards. Installation also requires a building permit from the City of Pacifica Building Department, with a typical lead time of around 30 days, per local permit records.
ADU (Accessory Dwelling Unit) placements — siting a prefab or manufactured home on an existing residential lot as a secondary unit — require a separate ADU permit from the City of Pacifica Planning & Building Department. California state laws AB 68 and AB 881 have streamlined ADU approvals statewide, making this one of the more accessible pathways for Pacifica homeowners. The typical ADU permit lead time runs approximately 60 days.
Tiny homes on wheels (THOWs) are regulated as RVs under California law and cannot legally serve as permanent dwellings without specific local zoning allowance. Pacifica zoning must be verified directly with the City before placing a THOW on any residential parcel. This is a critical distinction for buyers attracted to the lower price point of tiny homes.
- Manufactured home installation: City of Pacifica building permit required (~30-day lead time)
- ADU prefab placement: separate ADU permit, ~60-day lead time (streamlined under AB 68/AB 881)
- Tiny homes on wheels: regulated as RVs; permanent-dwelling use requires specific Pacifica zoning approval
Climate and Structural Factors Unique to Pacifica
Pacifica's physical environment introduces structural considerations that are less common — or less severe — in inland California markets. These factors directly affect material choices, foundation specifications, and long-term maintenance costs.
Seismic exposure: Pacifica sits in Seismic Zone 4, the highest earthquake risk category in California. All prefab homes must meet California's seismic construction standards, which can influence both unit specifications and installation engineering requirements.
Coastal winds: Proximity to the Pacific Ocean means manufactured and modular homes may require additional structural anchoring beyond standard California HCD minimums. Buyers should confirm that any unit is engineered or certified for high-wind coastal conditions.
Marine fog and moisture: Pacifica's cool coastal Mediterranean climate brings persistent marine fog. Moisture management — including vapor barriers, ventilation, and foundation drainage — is a meaningful design consideration for prefab homes sited here.
Salt air corrosion: Metal components (fasteners, frames, HVAC systems, underpinning) are exposed to salt air from the Pacific. Material selection and protective coatings should be evaluated for corrosion resistance, with maintenance schedules adjusted accordingly.
- Seismic Zone 4: prefab homes must meet California's strict seismic standards
- Coastal wind loads may require engineering beyond standard HCD minimums
- Salt air can accelerate corrosion of metal components — material spec matters
ADU Strategy: Using Prefab to Maximize an Existing Lot
For Pacifica homeowners who already own residential property, California's ADU-friendly regulatory framework makes prefab construction an operationally viable option for generating rental income or accommodating extended family.
Under AB 68 and AB 881, local jurisdictions — including Pacifica — cannot impose certain discretionary review processes that previously slowed ADU approvals. A manufactured or modular home placed on an existing lot as an ADU can, in principle, move through the City of Pacifica Planning & Building Department in roughly 60 days. This compares favorably with ground-up stick-built construction timelines.
The cost math is straightforward: a manufactured ADU unit in the $150,000–$250,000 range, added to a lot that already carries site infrastructure, avoids much of the land acquisition premium that makes Pacifica real estate expensive for new entrants. Rental income from an ADU in San Mateo County can be meaningful, though rental rate projections are outside the scope of this guide and should be evaluated against current market data independently.
Buyers considering this path should verify zoning compatibility for their specific parcel with the City of Pacifica before committing to a unit purchase, as not all residential zones permit ADU placement of manufactured structures.
- AB 68 & AB 881 streamline ADU approvals; ~60-day lead time at City of Pacifica
- Manufactured ADU units available from ~$150,000 before site work
- Lot-level zoning verification required before purchase commitment
FAQ
How much does a prefab home cost in Pacifica, CA?
Manufactured homes in Pacifica range from approximately $150,000 to $400,000, with a median near $250,000, based on local listing and dealer data. Tiny homes have a lower entry point — $50,000 to $150,000 (median ~$90,000) — but site preparation, foundation work, and utility hookups are not included in unit prices.
Do I need a permit to install a manufactured home in Pacifica?
Yes. Manufactured and modular homes must comply with California HCD construction standards and require a building permit from the City of Pacifica Building Department. Typical permit lead time is around 30 days, per local permit records. ADU placements require a separate permit with a ~60-day lead time.
Can I put a tiny home on my Pacifica property?
It depends on the structure type and local zoning. Tiny homes on wheels (THOWs) are classified as RVs under California law and cannot be used as permanent dwellings without a specific zoning allowance from the City of Pacifica. Tiny homes built on permanent foundations and meeting HCD standards may be treated differently. Verify your parcel's zoning before purchasing any unit.
Are there manufactured homes currently for sale in Pacifica?
Inventory is very limited. At the time of research, only two mobile or manufactured homes were actively listed for sale in Pacifica on Zillow. Buyers willing to search within about four miles can find more options in nearby South San Francisco, where units have been listed in the $80,000–$180,000 range.
How does Pacifica's coastal climate affect prefab home construction?
Pacifica's location in Seismic Zone 4 requires prefab homes to meet California's strict seismic standards. High coastal winds may require additional structural anchoring. Persistent marine fog creates moisture management demands, and salt air from the Pacific can accelerate corrosion of metal components — all factors that should inform material selection and engineering specifications.
Is a prefab ADU a viable option for a Pacifica homeowner?
Potentially, yes. California laws AB 68 and AB 881 have streamlined ADU permit approvals, and the City of Pacifica's ADU permit process currently runs approximately 60 days. A manufactured ADU unit in the $150,000–$250,000 range placed on an existing lot avoids land acquisition costs. Parcel-level zoning verification is required before committing to a purchase.
What firms offer prefab or modular homes in the Pacifica area?
Research identified several firms operating in or near Pacifica: Pacifica Homes, Inc. offers manufactured floor plans from 1,042 to 1,520 sq ft; Impresa Modular offers custom modular construction with design and engineering services; Pacifica Tiny Homes offers customizable tiny home models; and Alliance Manufactured Homes operates in nearby South San Francisco. These are cited as examples from research, not as endorsements.
Connect with manufacturers and dealers serving the Pacifica, CA area to compare unit costs, floor plans, and site requirements for your specific parcel.
Connect with manufacturers and dealers serving the Pacifica, CA area to compare unit costs, floor plans, and site requirements for your specific parcel.
Get Local Prefab Quotes (opens in new tab)| Home Type | Low | High | Median | Notes |
|---|---|---|---|---|
| Manufactured home (Pacifica) | $150,000 | $400,000 | $250,000 | Local listing & dealer data |
| Mobile home, 560 sq ft (416 4th Ave, Pacifica) | $180,000 | $280,000 | $230,000 | Zillow listing data |
| Manufactured home, nearby South San Francisco (~4 mi) | $80,000 | $180,000 | $130,000 | Alliance Manufactured Homes, 1700 El Camino Real, SSF |
| Tiny home | $50,000 | $150,000 | $90,000 | Unit cost only; site prep not included |
Costs based on 2025–2026 data from public sources + local permit records.