Custom homes,
designed for your parcel.
A custom home is designed around your parcel, your program, and the way you actually live — not pulled from a stock plan library. We carry architecture, structural engineering, Title 24 modeling, CALGreen compliance, and construction under a single design-build contract, so the team pricing your home is the team that builds it. That removes the bid-gap that drives change orders on traditional design-bid-build projects.
CA Lic. #1145233
“Custom is not a finish level — it is a procurement model. The work is one parcel, one program, one team from sketch to certificate of occupancy.”
What we mean by custom home builder.
C-01 · Full-custom architect-led home
- Size
- 2,400 – 6,500 sqft
- All-in
- $650 – $1,200 / sqft
- Schedule
- 14 – 20 months build
Site-specific massing, custom envelope, custom millwork, and a fully engineered MEP program. Pre-construction is longer than production builds because every detail is drawn, modeled in Title 24, and priced against named manufacturers.
C-02 · Hillside custom home
- Size
- Site-dependent
- All-in
- $800 – $1,400 / sqft
- Schedule
- 18 – 28 months build
Hillside Compliance Review, geotechnical caisson or pier-and-grade-beam foundations, retaining and drainage strategy, and (when applicable) Wildland-Urban Interface assembly detailing. Schedule risk lives in plan check, not framing.
C-03 · Coastal custom home
- Size
- Site-dependent
- All-in
- $850 – $1,500 / sqft
- Schedule
- 20 – 30 months build
Coastal Zone projects add a Coastal Development Permit, ESHA / bluff setback analysis, and corrosion-rated materials. Permitting drives the critical path; we schedule the build around the entitlement window, not the other way around.
C-04 · Semi-custom on stock structure
- Size
- 1,800 – 3,200 sqft
- All-in
- $550 – $850 / sqft
- Schedule
- 10 – 16 months build
Owners who want a custom finish program on a more standardized envelope. Cost certainty earlier, design development shorter, finish quality identical to full-custom.
Real California cost ranges.
All-in 2026 costs (design + permits + sitework + build + finishes + soft costs) for custom homes in the LA basin and Bay Area run $650–$1,200/sqft for flat lots and $800–$1,500/sqft for hillside or coastal sites. Soft costs are typically 14–20% of hard-cost subtotal. We deliver a written assumptions sheet with every estimate.
Architecture + engineering
Architect 8–14% of hard cost · structural 1.5–3% · Title 24 + CALGreen 0.5–1% · geotech $4k–$25k depending on hillside risk.
Envelope
Custom doors and windows, exterior plaster or board-and-batten, standing-seam metal roofing — $90–$220/sqft on a custom envelope.
Interior finish program
Custom cabinetry, stone, hardwood flooring, designer plumbing — $200–$500/sqft is normal for full-custom.
Foundation
Slab-on-grade $25–$45/sqft. Pier + grade beam (hillside) $50–$95/sqft. Caissons $80–$180/sqft.
Title 24 systems
Heat pumps, solar PV, battery readiness, high-performance envelope — $35–$70/sqft above 2019-code construction.
Owner contingency
15% on custom flat lot · 20% hillside · 25% coastal or first-time owner-builder.
The permit path.
Custom homes are permitted as new construction at the local building department (LADBS in City of LA, county or city building department elsewhere). Plan check is longer than production builds because the structural and Title 24 packages are bespoke; expect two to four correction cycles and four to eight months of plan-check turnaround in jurisdictions like LA, San Francisco, or Oakland.
- Building permit (architectural + structural)
- Title 24 energy compliance package per CEC 2022 code
- CALGreen worksheet (residential mandatory measures)
- Mechanical, electrical, plumbing permits
- Grading permit when cut/fill exceeds 50 cubic yards
- Hillside Compliance Review (LA hillside) or local equivalent
- Coastal Development Permit in the Coastal Zone
- WUI assembly review in Very High Fire Hazard Severity Zones
How California code shapes the work.
California custom homes are designed against CEC 2022 Title 24 (heat-pump-first), CALGreen mandatory measures, and the locally-adopted California Residential Code amendments. In hillside, seismic, fault-rupture, liquefaction, methane, or VHFHSZ overlays, additional reports and details are required before plan check accepts the package.
What the schedule actually looks like.
- Step 013 – 6 weeks
Programming + parcel diligence
Site analysis, zoning envelope, geotech scoping, program with owner.
- Step 0210 – 18 weeks
Schematic + design development
Massing through detailed plans, materials, structural strategy.
- Step 038 – 14 weeks
Construction documents
Full permit set incl. Title 24, CALGreen, civil, MEP.
- Step 0416 – 32 weeks
Plan check + permit
Two to four correction cycles in dense jurisdictions.
- Step 058 – 16 weeks
Sitework + foundation
Demo (if any), grading, utilities, foundation.
- Step 0610 – 18 weeks
Framing → dry-in
Framing, sheathing, roof, windows, weather barrier.
- Step 0720 – 32 weeks
MEP + finishes
MEP rough, insulation, drywall, cabinetry, tile, flooring, trim.
- Step 084 – 8 weeks
Commissioning + CofO
HVAC start-up, solar interconnection, final inspections, Certificate of Occupancy.
How we run this work.
We start with a feasibility memo on your parcel before any drawings start: zoning envelope, geotech risk, utility capacity, hillside or coastal overlay, and a realistic plan-check window for the jurisdiction. That memo is the basis for the program we design against.
Design proceeds in three reviews — schematic, design development, and construction documents — each closed out with owner sign-off and an updated estimate range. Pricing tightens as the design tightens; we do not bid blind drawings and then ambush you with change orders.
Construction is run on a fixed-fee design-build contract with named subcontractors, owner allowances for finishes, and a published RFI / change-order protocol. You see the schedule weekly, the budget monthly, and the inspection log in real time.
Frequently asked.
- What is the difference between a custom home and a production home?
- A custom home is designed for one parcel and one owner — every plan, elevation, MEP layout, and finish detail is drawn for the project. A production home is built from a plan library with site-specific modifications. Custom costs more per square foot and takes longer in design, but matches the parcel and the owner. We build both.
- How long does a custom home actually take from contract to keys?
- For a flat lot in a moderate jurisdiction, plan on 12–18 months pre-construction (programming + design + plan check) followed by 14–20 months of build — about 26–38 months total. Hillside or coastal sites add 6–12 months because of geotech, Hillside Compliance Review, Coastal Development Permit, or WUI assembly review.
- Why is design-build cheaper than design-bid-build for custom homes?
- Under design-build, the team pricing the project is the team building it, which removes the bid-gap risk that drives change orders. The architect, structural engineer, and contractor coordinate during design rather than after the bid. In our experience that compresses the schedule 8–16 weeks and reduces change orders 30–50% on ground-up residential.
- Do you offer fixed-price custom contracts?
- Yes — once construction documents are 95% complete and the engineering is final, we lock the contract sum with named subcontractors and owner allowances for finishes still being selected. We do not lock a number on schematic-level drawings; doing so would force us to bury contingency you cannot see.
- Who owns the design at the end?
- You own the executed home. The architectural drawings remain the architect's intellectual property under standard AIA contracts — common practice across California design-build — but you have unlimited rights to use them on your parcel for the project they were drawn for.
- What permits does a custom home require?
- A building permit (covering architectural and structural), mechanical/electrical/plumbing permits, a Title 24 energy compliance package, a CALGreen worksheet, and — depending on the lot — a grading permit, Hillside Compliance Review, Coastal Development Permit, or WUI assembly review. The local building department issues the building permit; the Coastal Commission or local LCP handles coastal projects.
- How do I verify your license before signing?
- Look up our CSLB record at cslb.ca.gov — license number, classification (B for general building), bond, workers' comp, and complaint history are all public. Verify the license is active before you sign any contract.
Start with a feasibility memo.
Tell us about the parcel and the program. We'll come back with a written feasibility memo before any design work starts.
Want a real number for your Custom Home Builder job?
- We open the books on similar jobs from the last 24 months
- Hand-built estimate, not a software auto-quote
- Includes permits, finishes, and the boring stuff
3-day turnaround · Free