West Sacramento, CA · Yolo County
Attached ADU in West Sacramento
Upside ADU builds attached adus in West Sacramento, Yolo County, for a $1,000 deposit with transparent fixed pricing and inspection-tied payments. A typical West Sacramento attached adu runs $108,000–$289,000 all-in, and we permit it through the City of West Sacramento Community Development Department end to end.
West Sacramento rules that affect a attached adu
In West Sacramento, an attached unit shares a wall and utility runs with your main home, which can cut trenching and site costs — useful on tighter lots where a fully detached build would crowd the yard. The City of West Sacramento Community Development Department reviews it as new attached square footage.
Local permitting: West Sacramento sits in Yolo County and permits through its own Community Development Department — a separate process from the City of Sacramento across the river. Standard 4 ft setbacks and 16 ft height apply; older Broderick lots often have detached garages well suited to conversion.
That's the attached adu-specific picture. For the full Yolo County rulebook — every setback, height, and owner-occupancy detail — see our Sacramento-region ADU rules guide, and learn how the build type works statewide on our attached adu page.
Why West Sacramento homeowners pick Upside
- $1,000 deposit — the CA legal max
- Inspection-tied milestone payments
- We know the City of West Sacramento Community Development Department process
- Transparent, all-in West Sacramento pricing
- Property-manager referral when you rent
West Sacramento attached adu cost snapshot
An attached ADU connects to your existing house but functions as a fully separate dwelling. It shares utilities and a wall, which can reduce site and trenching costs versus a detached build. In the Yolo County market that prices out to about $240–$340 per square foot, or $108,000–$289,000 for a finished, permitted unit. A typical West Sacramento attached adu rents for $1,600–$2,700 a month.
| Size | Typical use | West Sacramento all-in cost (2026) |
|---|---|---|
| 450 sq ft | Studio / 1-bed, max cash-on-cash | $108,000–$153,000 |
| 650 sq ft | 1–2 bed, most popular | $156,000–$221,000 |
| 850 sq ft | 2–3 bed / multigen, max value | $204,000–$289,000 |
Dial in your own number with the ADU cost calculator.
Estimate your ADU
Ballpark 2026 turnkey cost, financing, and rental return for your area.
Estimated turnkey cost
$240–$340 / sq ft · incl. design, permits & construction
Estimates only — 2026 regional ranges, not a bid. Your real price depends on site conditions, finishes, and your lot. We confirm with a free feasibility check.
Attached ADU projects in West Sacramento
West Sacramento splits cleanly: Broderick's older grid is conversion territory, with detached garages that come up to code as living space, while Southport's newer lots take a ground-up backyard build. Both run through Yolo County's process, not the city across the river. Every attached adu is fixed-price, funded on inspection-passed milestones, and backed by our written guarantee.
Browse finished builds and specs in our ADU project gallery.
Attached ADU in West Sacramento — FAQs
A attached adu in West Sacramento typically runs $108,000–$289,000 turnkey in 2026, based on $240–$340 per square foot for the Yolo County market. We confirm your exact number with a free feasibility check.
West Sacramento attached adu permits are handled by the City of West Sacramento Community Development Department (Yolo County). West Sacramento sits in Yolo County and permits through its own Community Development Department — a separate process from the City of Sacramento across the river. Standard 4 ft setbacks and 16 ft height apply; older Broderick lots often have detached garages well suited to conversion. We prepare and submit the full package and manage inspections.
A attached adu in West Sacramento rents for about $1,600–$2,700 a month in 2026 depending on size and finish. Bridge District growth and a quick commute to downtown Sacramento keep West Sacramento ADUs fast to rent, supporting reliable cash flow near the riverfront.
An attached ADU shares at least one wall with your main house; a detached ADU is a standalone structure. Attached units can be cheaper to build (shared utilities, less site work) while detached units typically rent higher and add more resale value.
Attached ADU near West Sacramento
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