Most Sacramento ADUs aren't built with cash. They're built with a HELOC, a cash-out refi, a renovation loan, or a true ground-up construction loan — and the right choice changes the project's all-in cost by $40,000–$90,000 over 10 years. Here's how each option actually works in Sacramento in 2026.
HELOC rates (Sac, 2026): 8.0–9.5%
Renovation loan: 7.0–8.0%
Construction loan: 8.0–9.5% int-only
CalHFA ADU Grant: Currently paused
What this guide covers
Each section below answers one part of the question in plain language, with 2026 Sacramento-region numbers rather than national averages.
The four real options for Sacramento ADU financing — Almost every Sacramento ADU we build in 2026 is financed one of four ways.
HELOC: the default for garage conversions — A Home Equity Line of Credit is the most common Sacramento ADU financing tool because it's flexible — you only draw what you spend, only pay interest on what you've drawn, and there are no construction-loan inspection or draw schedules.
Cash-out refi: best when your existing rate is already high — If you bought or refinanced your Sacramento home in 2023–2024 and your current rate is in the high 6s or 7s, a cash-out refi often makes sense — you replace your existing mortgage and pull equity for the ADU at a single fixed rate.
Renovation loan: when you're buying the home and the ADU together — FNMA HomeStyle and FHA 203(k) renovation loans let you finance the home purchase plus the ADU build into a single first-mortgage loan.
Construction-to-perm loan: ground-up detached ADU, low equity — True construction loans fund the ADU based on the future appraised value of the property.
Frequently asked: ADU Financing Sacramento 2026
The questions homeowners ask most about this topic, answered by a CSLB-licensed Sacramento builder.
What's the easiest way to finance an ADU in Sacramento? For most homeowners with existing equity: a HELOC. It's flexible, doesn't require construction-loan draw inspections, and only charges interest on what you've actually drawn. Local Sacramento HELOC lenders worth getting quotes from include Golden 1, SAFE, SchoolsFirst, and Tri Counties Bank. HELOC rates are running 8.0–9.5% in 2026.
Is the CalHFA ADU Grant still available in 2026? No. The $40,000 pre-development reimbursement grant has been fully subscribed and paused since early 2024, and CalHFA has not announced a refunding date. Don't budget around the grant unless CalHFA officially reopens applications.
Should I cash-out refi to fund my Sacramento ADU? Only if your existing mortgage rate is already in the high 6s or 7s. If you locked a sub-4% rate in 2020–2021, never cash-out refi for an ADU — the math destroys you. Use a HELOC, renovation loan, or construction loan instead so you keep your existing low-rate mortgage in place.
Can I finance an ADU when I don't have much home equity? Yes — through a construction-to-perm loan that underwrites to the after-repair value of the property (your home plus the completed ADU). Lenders like RenoFi and certain credit-union construction divisions are active in Sacramento. Expect 10–25% down on total project cost and a 45–60 day close.
How we deliver ADU Financing Sacramento 2026
Every project runs through the same five-stage process, so you know what happens next and what it costs before construction starts. We handle design, engineering, jurisdictional plan check and construction under one contract, which keeps the schedule and the budget with a single accountable team.
Stage 1 — Site walk and feasibility: setbacks, utilities, easements and lot coverage reviewed on site
Stage 2 — Fixed-scope proposal: line-item pricing with permits, utility connections and finishes included
Stage 3 — Design and engineering: architectural plans, Title 24 energy calcs and structural engineering
Stage 4 — Permitting and plan check: submittal, corrections and approvals handled by our office
Stage 5 — Construction and closeout: weekly updates, final inspection, certificate of occupancy and warranty
Why homeowners choose A1 for ADU Financing Sacramento 2026
A1 Building Contractors LLC is a veteran-owned, CSLB-licensed general contractor based in Roseville, CA. We design, permit and build ADUs, garage conversions, home additions and custom homes across the Sacramento region, with transparent line-item pricing and a single point of contact from first site walk to final inspection.
CSLB #1094366 General Contractor · DRE #00898265 Broker
Serving Sacramento, Placer, El Dorado, Yolo and Sutter counties
In-house design, permitting, plan check and construction
4010 Foothills Blvd Ste 103-155, Roseville, CA 95747