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Mission, Noe Valley, Bernal
Victorian gut renovation: strip to studs, preserve facade, replace all systems, seismic retrofit, open floor plan, modern kitchen. Typical scope: 1,800 to 3,000+ sf. Cost: $300–$600+/sf
San Francisco — Design-Build Contractor — CSLB #1041528
Whole Home Renovation in San Francisco — Victorian Gut Remodels to Post-War Modernizations
Two housing stocks, two renovation profiles, one approach. We design, permit, and build whole home renovations from foundation to finishes — from Victorian foundation work to tract-home system replacement.
Why San Francisco Is Different
Two Housing Stocks, Two Renovation Profiles
A whole home renovation in San Francisco is not one kind of project. It’s two — defined by which half of the city’s housing stock you’re living in. If you’re in the Mission, Noe Valley, Bernal Heights, the Haight, Pacific Heights, or the Western Addition, you’re probably renovating a Victorian or Edwardian — a wood-frame building from the 1880s through the 1910s, built with old-growth redwood and Douglas fir, sitting on an unreinforced brick or early concrete foundation, with gas lighting long since converted to electricity but never fully rewired, cast iron drain pipes with a century of corrosion, and layers of lead paint on every surface built before 1978.
If you’re in the Sunset, Richmond, Excelsior, Ingleside, Visitacion Valley, or Parkside, you’re renovating a post-war tract home — a 1940s through 1960s build with galvanized plumbing, an undersized electrical panel, no insulation, single-pane windows, and a slab or raised foundation designed for one story under pre-seismic code. Both renovation profiles end in the same place — a home with modern systems, current seismic protection, energy efficiency, and finishes that match how you actually live. But the path to get there is different in every way that matters.
“When you open the walls of a 120-year-old Victorian, you will find conditions that no assessment can fully predict. The contingency covers them without stopping the project.”
ACI is a design-build general contractor based in Pacifica. We renovate homes throughout San Francisco, from Victorian row houses to post-war tract homes, handling structural assessment, design, DBI permitting, and construction with our own crew. This page covers what makes San Francisco different.
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SAN FRANCISCO EXPERTS
We know the ins and outs of DBI, historic neighborhood guidelines, and the logistics of working on tight city lots. We handle the complex red tape so your whole-home transformation stays on track.
Renovation Profile 1
Victorian & Edwardian Homes — What’s Behind the Walls
1880s–1910s • Pre-Seismic Construction
Unreinforced Brick Foundations
Many pre-1906 and early post-quake homes sit on foundations made of unreinforced brick. These foundations lack the reinforced concrete and anchor bolts that modern seismic code requires. Options range from foundation bolting and supplemental concrete work to full foundation replacement, depending on condition and renovation scope.
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The framing is typically old-growth redwood or Douglas fir — structurally superior to modern wood. The material is sound. The connections must be upgraded to current seismic standards.
Cast Iron • Lead Paint • Knob-and-Tube
Systems that Haven’t Changed Since 1910
Homes from this era were originally wired with knob-and-tube — an early electrical system with exposed wires through porcelain insulators. A whole home renovation removes all remaining knob-and-tube and replaces the entire system with a new 200-amp panel and modern circuits.
Victorian-era drain/waste/vent systems use cast iron pipes that have been in service for 80 to 140 years. Internal corrosion, joint failure, and root intrusion are common. A whole home renovation replaces the DWV system with modern piping.
Any San Francisco home built before 1978 has lead paint — on woodwork, walls, window sashes, and exterior trim. SF’s building code requires certified supervision and proper containment and disposal on renovation work.
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Underpinning: If the basement floor height is below habitable space minimums, underpinning — excavating and pouring new, deeper foundation walls — unlocks significant square footage. It’s complex work, but it transforms the home.
The Light Problem — and How Renovation Solves It
Victorian row houses were designed for gas and candlelight. The narrow floor plan — typically 25 feet wide, 60 to 100 feet deep — means natural light enters only from the front and rear. The middle of the house is dark. A whole home renovation is the opportunity to fundamentally reimagine the interior while preserving the exterior character. Opening the floor plan, installing skylights or light wells at the midpoint, adding clerestory windows, and creating an open kitchen-dining-living space that draws rear-yard light deep into the home — these aren’t cosmetic choices. They transform the livability of the house.
Party Walls & Neighbor Coordination
Victorian row houses share party walls with adjacent buildings. Renovation work that affects a shared party wall requires structural engineering that accounts for the neighbor’s structure, and in some cases, a party wall agreement. Our structural engineer evaluates party wall conditions before demolition begins.
Renovation Profile 2
Post-War Tract Homes — What’s Behind the Walls
The Sunset, Richmond, Excelsior, Ingleside, Visitacion Valley, and Parkside were built out between the 1930s and 1960s — many by large-scale developers like Henry Doelger. The construction profile matches what we find in Pacifica and Daly City homes from the same era.
Galvanized steel plumbing — corroded from the inside after 60 to 70 years of service. Full supply line replacement with copper or PEX. Undersized electrical panels — 60-amp or 100-amp with inadequate circuits. Full rewire to 200-amp service. No wall insulation — minimal or no insulation. Title 24 requires insulation when walls are opened during renovation. Single-pane windows — single-pane aluminum windows throughout. Replacement with dual-pane, low-E units for energy efficiency and comfort.
Asbestos in popcorn ceilings, vinyl tiles, pipe insulation, and joint compound — test before demolition, abate where found. Foundations designed for single-story loads without modern seismic connections. Foundation bolting, cripple wall bracing, and shear panel installation during the renovation.
“The 25-foot lot problem adds 10 to 20 percent to the renovation cost — all logistics, no structural value.”
The critical difference between renovating a Sunset tract home and renovating the same-era home in Pacifica or Daly City is access. San Francisco’s standard 25-foot-wide lots leave no side yard. Materials, dumpsters, and equipment must be managed from the front of the property and potentially through the house itself. These logistics add time and cost — typically 10 to 20 percent above what the same renovation scope would cost on a suburban lot with driveway access.
Permitting & Regulations
Permitting a Whole Home Renovation in San Francisco
San Francisco’s permitting process for whole home renovations involves multiple city agencies and is more complex than any other city in our service area. DBI reviews for building code compliance. SF Planning reviews for zoning compliance and conducts design review. Historic Preservation review applies to designated landmarks and conservation districts. The “Substantial Change” trigger may require upgrades beyond the renovation scope.
DBI Building Review
The Department of Building Inspection reviews construction plans for structural, electrical, plumbing, mechanical, energy code (Title 24), and accessibility compliance. DBI issues the building permit and conducts inspections during construction.
SF Planning & Design
SF Planning reviews for zoning compliance and, for renovations that change the building exterior, conducts design review against the Residential Design Guidelines. Exterior changes trigger Planning review and potentially neighborhood notification.
Historic Preservation
Properties designated as landmarks (Article 10), within conservation districts (Article 11), or identified as historic resources are subject to additional review. Window replacement and facade modifications must comply with the Secretary of the Interior’s Standards for Rehabilitation.
Substantial Change Trigger
When a renovation’s scope reaches this threshold, the building department may require upgrades beyond the renovation scope — smoke and CO alarms, fire-rated separations, energy code compliance for the entire building, and potentially sprinkler installation. We evaluate this early to prevent budget surprises.
Interior vs. Exterior
Interior-only renovations — where the work is entirely within the existing building envelope — pass through permitting faster with less exposure to Discretionary Review. A gut renovation that replaces all systems but doesn’t alter the exterior avoids the most complex requirements.
Permit Timeline
Budget 4 to 8 months for the permitting phase alone — from initial submission through plan check corrections to permit issuance. We submit thorough plans that anticipate DBI’s common correction items, but the timeline is a San Francisco reality that affects project planning.
What we do: We design to satisfy both DBI and Planning simultaneously — building code compliance and Residential Design Guidelines. For interior-only renovations, we scope work to move through permitting efficiently. For exterior changes, we manage neighborhood notification and design with DR risk in mind.
Neighborhoods
San Francisco Neighborhoods We Renovate In
- 📍Sunset & Richmond
Post-war modernization: transform 1,000–1,400 sf tract home into modern open-plan. Often combined with second-story addition. Full replumb, rewire to 200 amps. Cost: $250–$500+/sf
- 📍Pacific Heights, Russian Hill
Premium Victorian renovation: city’s highest property values, finish expectations match. Marble bathrooms, custom cabinetry, designer fixtures. Structural scope same as any Victorian. Cost: $500–$800+/sf
- 📍Excelsior, Ingleside, Outer Mission
Strongest renovation ROI in the city. Property values lower, renovation costs similar. Lower finish expectations, slightly better lot access keep costs toward lower end. Cost: $225–$450+/sf
- 📍Bernal Heights, Twin Peaks, Potrero
Hillside renovations add engineered foundations, retaining walls, grading, and access challenges. A whole home renovation on hillside costs 15 to 30 percent more — but hillside properties capture views that translate to property value.
- 📍Your Neighborhood?
The renovation scope, cost, and complexity vary significantly by neighborhood. Call us at (650) 224-3052 and describe your property. We’ll give you an honest picture of what your renovation involves.
Investment
San Francisco Whole Home Renovation Costs
The cost range for whole home renovation in San Francisco is wider than any other city we serve — reflecting the difference between Victorian complexity and post-war simplicity, flat lots and hillsides, standard finishes and luxury.
*All ranges reflect Peninsula market conditions — varies by scope, site conditions, and finish level
Victorian Gut Renovation
Mission, Noe Valley, Bernal Heights — strip, replace systems, seismic retrofit
$300K – $600K+Premium Victorian
Pacific Heights, Russian Hill, Cow Hollow — luxury finishes
$500K – $800K+Post-War Modernization
Sunset, Richmond — often with second-story addition
$250K – $500K+Value Renovation
Excelsior, Ingleside, Visitacion Valley — strongest ROI
$225K – $450K+Hillside Premium
Engineered foundations, retaining walls, grading
+15% – 30%25-Foot Lot Premium
Logistics on narrow lots vs. suburban lot with driveway
+10% – 20%
Contingency recommendation: Budget 15 to 20 percent contingency. On Victorians, sometimes recommend higher. When you open the walls of a 120-year-old building, you will find conditions that no assessment can fully predict. The contingency covers them without stopping the project. The total investment in a San Francisco whole home renovation ranges from $200K for a modest post-war tract home to $1.2M+ for a premium Victorian gut renovation — all determined by neighborhood, housing stock, lot conditions, and finish expectations.ific cost estimate based on your lot’s FAR or size allowance, call (650) 224-3052.
Our Process
The Structural Assessment
San Francisco’s housing stock is older and more structurally varied than any other city we serve. The assessment determines the renovation’s true scope.
Structural Evaluation
One site visit. We assess foundation type and condition, seismic connection status, framing condition, wiring extent, DWV condition, lead paint and asbestos presence, ceiling heights (underpinning evaluation), and party wall condition.
The “Substantial Change” Threshold
We evaluate whether the proposed scope triggers additional code compliance requirements — and what those requirements cost. This prevents the budget surprise that derails projects at plan check.
Honest Estimate
You leave with a clear picture of what the structure needs, what the renovation will involve, what it will realistically cost, and how long it will take to permit and build.
Design & Permitting
We design to satisfy both DBI building code and SF Planning design guidelines. We navigate the permitting process while you focus on finishes and budget. The assessment is free. One call.
Construction & Delivery
Foundation work, framing, mechanical/electrical/plumbing, insulation, finishes, site restoration. Our crew does the structural work directly. We don’t sub it out. The project completes when you have your CO. We don’t consider it done until then.
Why ACI
Why San Francisco Homeowners Choose ACI
We understand both profiles
Victorian gut renovations and post-war tract modernizations are different projects. We build across both — unreinforced brick foundations in the Mission and galvanized plumbing replacement in the Sunset.
We Do Structural Work
Foundation retrofitting, shear wall installation, framing modifications, seismic connections — our crew handles it in-house. On a San Francisco whole home renovation where structural work is the most critical and expensive phase, this eliminates coordination problems.
We navigate DBI and Planning
We design to satisfy both agencies simultaneously. For interior-only renovations, we scope work to move through permitting efficiently. For exterior changes, we manage neighborhood notification and design with DR risk in mind.
We know what’s behind SF walls
Knob-and-tube remnants spliced into Romex. Lead paint under seven layers of latex. Cast iron drain pipes with root intrusion at every joint. Brick foundations with mortar that crumbles. We scope it accurately because our estimates include it — not as a surprise during demolition.
Licensed & Insured
CSLB License #1041528 (General Building, Class B)