San Francisco · new construction cost
San Francisco new construction cost.
Planning a ground-up build in San Francisco? This page lays out what a realistic 2026 cost picture includes, what it excludes, and the local drivers that move the number — without fabricating a single fixed price.
Quick answer
In San Francisco, new-home construction cost is shaped by lot, zoning, energy code, and City and County of San Francisco jurisdictional realities. We publish ranges only when they are defensible per-project — this page gives you the structure to think clearly about the number before signing anything.
Homeowner & investor takeaway
Plan for DR risk and SF Green Building Code from day one. On east-side parcels, get geotech early — liquefaction can change foundation type entirely.
How to think about a San Francisco planning range.
Use these assumptions when modeling your number. They reflect Tier-1 market conditions and the local realities documented below.
Lot feasibility first
Narrow 25'-wide lots dominate; rear-yard setback rules and mid-block open space requirements often govern envelope.
Zoning & entitlement
RH-1 / RH-2 / RH-3 (residential house) and RM (residential mixed) zoning with neighborhood-specific design guidelines; many districts subject to discretionary review. Discretionary Review (DR) requests can be filed by neighbors on almost any new SFR; Planning Commission hearings common. Section 311/312 neighbor notification mandatory.
Climate zone
CEC Climate Zone 3. Mild, cool climate; heating dominates. AC rarely needed but heat-pump heating standard now.
Soils & seismic
Highly variable — bedrock in western neighborhoods, Bay Mud and engineered fill in SoMa/Mission Bay. Liquefaction risk significant in fill areas. San Andreas, Hayward, and San Gregorio fault systems regional; CGS EQ Zone App lists liquefaction zones in eastern neighborhoods (SoMa, Mission, Marina).
What the planning number includes.
Hard costs
Sitework, foundation, framing, roofing, MEP rough-in, drywall, finishes, fixtures, and labor for installation.
Soft costs
Architectural design, structural engineering, geotech / soils, Title 24 and energy modeling, surveys, and consultant coordination.
Permits & plan check
Building permit fees, plan-check turnaround, and required studies in San Francisco Department of Building Inspection (DBI).
Sitework & utilities
PG&E electric/gas; SFPUC water/sewer. Service upgrades on tight lots may require trenching coordination with SF Public Works.
Foundation & structure
San Andreas, Hayward, and San Gregorio fault systems regional; CGS EQ Zone App lists liquefaction zones in eastern neighborhoods (SoMa, Mission, Marina). Highly variable — bedrock in western neighborhoods, Bay Mud and engineered fill in SoMa/Mission Bay. Liquefaction risk significant in fill areas.
Energy code
Climate Zone 3. Title 24 Part 6 with PV; SF's all-electric ordinance applies to new buildings. CALGreen Part 11 + SF Green Building Code (often beyond state minimum, especially on multifamily).
What is typically excluded.
Land acquisition
Lot purchase, escrow, title, and brokerage fees are owner-side and excluded from construction estimates.
Off-site improvements
City-mandated sidewalk, curb, gutter, or street tree work beyond the build footprint when separately permitted.
Furnishings & landscaping
FF&E, hardscape, and full landscape design unless explicitly scoped.
Financing & carry
Construction loan interest, insurance, and property taxes during the build window.
San Francisco-specific cost drivers.
Local driver 1
Discretionary Review delays and design changes
Local driver 2
All-electric mechanical systems
Local driver 3
Deep foundations in liquefaction zones
Local driver 4
Shoring and retaining on hillside lots
Local driver 5
SFMTA street/sidewalk permits
Constraints that affect price.
Minimal grading typical in built-up neighborhoods; downhill lots may have retaining and shoring requirements.
SFPUC combined sewer throughout.
Street parking and sidewalk closures via SFMTA permits; tight delivery windows.
Many neighborhoods (Bernal, Twin Peaks, Diamond Heights) on significant slopes — shoring/retaining common.
Limited VHFHSZ within city limits; some peripheral parcels mapped.
Coastal Zone applies to Ocean Beach and parts of the western/southern shoreline; CDP may apply.
SLR vulnerability mapped along eastern shoreline; FEMA SFHA in limited areas (Mission Creek, southeast bayfront).
Cost-risk profile.
Risk 1
DR filing extending entitlement 6–12 months
Risk 2
Liquefaction geotech triggering pile foundations
Risk 3
All-electric code compliance late in design
Risk 4
Neighbor notification triggering redesign
How to de-risk before signing.
- Order a feasibility report against current zoning before architectural fees compound.
- Run preliminary soils / geotech early so foundation cost is not a late surprise.
- Confirm Title 24 / CALGreen targets at schematic design, not at permit submittal.
- Stage utility upgrade scoping (sewer lateral, panel, gas) before demo.
- Lock major finishes before plan-check submittal to prevent late-stage change orders.
Ranges and drivers on this page are planning guidance, not a contract price. Confirm scope-specific costs with a licensed builder and San Francisco Department of Building Inspection (DBI).
Questions.
- What is Discretionary Review in San Francisco?
- A process where neighbors or the public can request the Planning Commission review a project that would otherwise be approved ministerially. DR can add 6–12 months and design changes.
- What is Section 311/312?
- Pre-application neighbor notification required for most residential projects; gives neighbors a window to file a DR request.
- Do I have to build all-electric?
- SF's Green Building Code requires all-electric for new buildings in most cases; verify scope at intake.
- Is my lot in a liquefaction zone?
- SoMa, Mission Bay, Marina, and other fill areas are mapped for liquefaction; CGS EQ Zone App is authoritative.
- Does Title 24 apply?
- Yes — statewide. SF Green Building Code adds requirements on top.
Plan your San Francisco build with a defensible number.
Send your lot and target program. We respond with a scoped planning range and a clear next step — no fake fixed price.
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