Single-family construction starts in California fell 11% in the six months ending February 2026, while multi-family starts surged 74.5%, according to firsttuesday Journal. ADU projects and small multi-unit rentals are outperforming traditional single-family spec construction in most coastal markets. Inland markets including Sacramento, the Central Valley, and San Diego submarkets are producing a different set of opportunities.
LendSure Home Loans finances ground-up construction for spec builds and build-to-rent projects in California, with no tax returns, no W-2s, and no personal income analysis required. For investment transactions, share your project details with our team before submitting a full application.
What Changed for California Builders on January 1, 2026
Every permit application submitted on or after January 1, 2026 is governed by the 2025 California Building Standards Code, codified in Title 24 of the California Code of Regulations. AB 130 freezes residential building code updates until at least 2031, making this the last Title 24 update for the foreseeable future.
The 2025 update introduces a standalone Wildland-Urban Interface Code (Title 24, Part 7), structural amendments affecting construction sequencing and cost, and new energy requirements. The 2025 Energy Commission standards now require heat pumps as the default for space and water heating in all new construction, with expanded EV infrastructure requirements under the updated CALGreen code.
Why This Affects Your Construction Budget
A budget built on pre-2026 cost assumptions may not reflect what your project will actually cost. California’s updated requirements affect HVAC systems, water heating, electrical planning, ventilation design, materials selection, and permitting scope. A lender reviewing a construction budget assesses whether it is realistic for the applicable permit date.
Budgets prepared before January 2026 and not reviewed by a contractor familiar with the current code can create a funding gap mid-construction, which is the borrower’s responsibility to cover.
Spec Builder vs. BTR Investor: Two Different California Deals
Both strategies use ground-up construction financing, but the exit economics differ materially. California’s market conditions make those differences sharper than in most other states.
| Spec Builder | BTR Investor | |
| Goal | Build to sell | Build to hold and rent |
| Key market question | What will it sell for, and how quickly? | What rent will it generate after stabilization? |
| California-specific risk | Buyer affordability constraints; coastal market softness | Post-construction property tax reassessment; insurance costs |
| Post-construction step | Market and sell | Lease up, then refinance |
| Exit financing | Loan repaid at sale | DSCR loan qualifying on rental income |
For BTR investors, California’s property tax reassessment is a critical modeling consideration that most pro formas understate. A lot carrying a modest vacant-land assessment will be reassessed as improved real estate once construction is complete. The post-construction tax figure is what flows into the DSCR calculation at refinance, and modeling it accurately before breaking ground determines whether the exit works.
Where California Builders Are Finding Opportunity in 2026
Sacramento issued 632 permits in January 2026 alone, with top builders closing 6,012 homes across 2025. The Sacramento metro and Central Valley continue to attract Bay Area migration, with median price growth of 3% projected for 2025 and 4% for 2026, according to Northern California construction analysis. ADU permit activity in Sacramento grew 56% from 2023 to 2025, reflecting consistent demand for accessory dwelling units as both a standalone strategy and a supplement to primary construction.
San Diego and Los Angeles price growth has been flat since January 2025. Los Angeles remains heavily influenced by wildfire rebuild activity following the 2025 Palisades and Eaton fires. Inland Empire, San Bernardino County, and San Diego submarkets away from the most expensive coastal zip codes offer more accessible land basis and better construction margin than the immediate Los Angeles metro.
California Market Snapshot for Builders
| Market | 2026 Opportunity |
| Sacramento / Central Valley | Strongest SFR pipeline; Bay Area migration; ADU demand; accessible land basis |
| Inland Empire / San Bernardino | Lower land cost than coastal LA; consistent buyer demand from affordability migration |
| San Diego submarkets | Flat coastal pricing but select inland submarkets producing viable spec margins |
| Los Angeles | Wildfire rebuild pipeline; complex permitting environment; higher insurance costs |
| Bay Area | Highest land costs; ADU and infill density plays near transit corridors |
Wildfire Zones: Site Due Diligence Before Loan Underwriting
The 2025 Building Standards update creates a standalone Wildland-Urban Interface Code as Title 24, Part 7, replacing wildfire construction requirements previously embedded across other code sections. The CAL FIRE Fire Hazard Severity Zone maps, updated statewide in phases during 2025, classify properties into Moderate, High, and Very High zones based on vegetation, fire history, terrain, weather, and ember movement.
A site’s FHSZ designation can affect construction requirements, materials, site design, insurance availability, and total project cost. Two California lots with identical purchase prices and projected finished values can represent materially different construction budgets depending on their fire zone classification. Land underwriting should happen before loan underwriting. The site’s characteristics determine whether the construction budget is realistic, and a budget that does not account for wildfire zone requirements is not a budget a lender will fund against.
Owner-Builder Rules for California Spec Homes
Some spec builders consider acting as their own general contractor to reduce costs. The California Contractors State License Board addresses the owner-builder exemption for homes intended for resale. An owner-builder who directly contracts with properly licensed trades can use the exemption for no more than four single-family residential structures intended for sale per calendar year. Hiring a licensed General Building contractor removes that numerical restriction.
The CSLB also notes that an owner-builder signing the permit assumes full responsibility for all project phases: permits, inspections, materials, subcontractor scheduling, payment obligations, and code compliance. That regulatory eligibility is separate from lender requirements. LendSure evaluates the construction plan as part of underwriting, including who is managing the build. Owner-builder eligibility under California law does not automatically establish eligibility under the loan program.
How LendSure’s Ground-Up Construction Program Works in California
LendSure’s Ground-Up Construction loan is a business-purpose loan product closing in an LLC or S-Corp. No tax returns, no W-2s, and no DTI calculation are required. Standard terms run 12 or 18 months, interest-only, with a 24-month option on exception and no prepayment penalty.
Leverage Structure
| Component | Maximum |
| Lot reimbursement | Up to 65% of purchase price |
| Construction budget | Up to 100% of the budget |
| Loan-to-ARV | Not to exceed 70% |
Experience Tiers
| Experience | Maximum Leverage |
| 6+ completed ground-up builds (last 3 years) 3+ completed ground-up builds (last 3 years) | Up to 90% of cost to buildUp to 85% of cost to build |
| 0–2 verifiable ground-up builds | Up to 80% of cost to build |
Experience is verified through public records under the borrower’s own name or LLC. California’s higher construction costs make comparable-scope experience particularly relevant. A builder whose prior projects were completed in a lower-cost market may face closer scrutiny on whether the budget reflects California’s actual cost environment.
Is Your California Project Finance-Ready?
| Area | Questions to Answer |
| Site | Owned, under contract, or needs acquisition financing? Zoning, deed restrictions, utilities confirmed? |
| Plans and permits | Under the 2025 Building Standards Code? Permit submitted, approved, or in process? |
| Budget | Hard costs, soft costs, and contingency reflecting 2026 California requirements? |
| Builder | Licensed GC identified? CSLB license verified? Contract in place? |
| Experience | Comparable completed projects documentable through public records? |
| Wildfire | Fire Hazard Severity Zone confirmed? Insurance availability and cost estimated? |
| Exit | Spec: projected ARV and sale comparables ready. BTR: projected rent and post-construction tax assessment modeled. |
LendSure Lends in California
LendSure Home Loans Ground-Up Construction program is offered in California and across Alabama, Arizona, Colorado, the District of Columbia, Florida, Georgia, Hawaii, Idaho, Illinois, Indiana, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, New Jersey, North Carolina, Ohio, Oregon, Rhode Island, Tennessee, Texas, Utah, and Virginia. For spec builds and BTR investment projects, share your project details with our team before submitting a full application.
Frequently Asked Questions
Which California building code applies to a project starting in 2026?
Any permit application submitted on or after January 1, 2026 must comply with the 2025 California Building Standards Code. This includes the updated California Building Code, Residential Code, the new standalone Wildland-Urban Interface Code, and the 2025 Energy Code requiring heat pumps as the default for space and water heating in new construction. Construction budgets based on pre-2026 assumptions should be reviewed by a contractor familiar with the current requirements before a loan application is submitted.
Can I act as my own general contractor on a California spec home?
California’s owner-builder exemption may apply to homes intended for resale, but with specific limitations. An owner-builder directly contracting with licensed trades is generally limited to four or fewer single-family structures intended for sale per calendar year. Regulatory eligibility under California law is separate from lender requirements. LendSure evaluates the construction plan as part of underwriting, and the program’s requirements may differ from what the state’s licensing rules permit.
How does a fire hazard severity zone affect a California construction loan?
A site’s FHSZ designation can affect construction requirements, materials, site design, and insurance availability under the new Title 24, Part 7 Wildland-Urban Interface Code. These factors affect the construction budget and completed-property carrying costs. Wildfire-zone due diligence should be completed before the construction budget is finalized, not after a loan application is submitted.
Do I need prior construction experience to qualify?
No, but experience determines the leverage tier. First-time builders are considered with more conservative terms. Builders with six or more completed ground-up projects in the last three years access the highest leverage. Experience must be verifiable through public records under your name or LLC, and comparable California-market experience carries more weight given the state’s higher construction cost environment.
Can land I already own count toward my equity?
Yes. LendSure can return up to 65% of the lot’s purchase price at closing. If the lot has been owned for more than one year, the appraised as-is value is used rather than the original purchase price. Soft costs such as permits and architectural plans can also be included in the project cost basis, reducing the cash required at project launch.
What happens when construction is complete?
Spec builds are sold and the loan is repaid from sale proceeds. For BTR projects, LendSure can refinance the construction loan into a DSCR loan qualifying on rental income rather than personal income. No seasoning is required if the construction loan was with LendSure. Model the DSCR exit using the completed-property tax assessment, not the vacant-land figure, and realistic California insurance costs before breaking ground.
