West Sacramento, CA · Yolo County
Junior ADU (JADU) in West Sacramento
Upside ADU builds junior adu (jadu)s in West Sacramento, Yolo County, for a $1,000 deposit with transparent fixed pricing and inspection-tied payments. A typical West Sacramento junior adu runs $44,000–$160,000 all-in, and we permit it through the City of West Sacramento Community Development Department end to end.
West Sacramento rules that affect a junior adu
A junior ADU stays inside your existing West Sacramento home (up to 500 sq ft) with an efficiency kitchen and its own entrance, so it skips most setback and site-work questions. Note that JADUs carry an owner-occupancy requirement, which we confirm against Yolo County rules.
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 junior 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 junior adu (jadu) 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 junior adu cost snapshot
A Junior ADU is up to 500 sq ft created within the walls of your existing house — often a converted bedroom with an efficiency kitchen. It's the lowest-cost way to add a legal rental, and you can pair one with a detached ADU on the same lot. In the Yolo County market that prices out to about $200–$320 per square foot, or $44,000–$160,000 for a finished, permitted unit. A typical West Sacramento junior adu rents for $1,600–$2,700 a month.
| Size | Typical use | West Sacramento all-in cost (2026) |
|---|---|---|
| 220 sq ft | Studio / 1-bed, max cash-on-cash | $44,000–$70,400 |
| 360 sq ft | 1–2 bed, most popular | $72,000–$115,200 |
| 500 sq ft | 2–3 bed / multigen, max value | $100,000–$160,000 |
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
$200–$320 / 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.
Junior 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 junior 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.
Junior ADU (JADU) in West Sacramento — FAQs
A junior adu (jadu) in West Sacramento typically runs $44,000–$160,000 turnkey in 2026, based on $200–$320 per square foot for the Yolo County market. We confirm your exact number with a free feasibility check.
West Sacramento junior adu (jadu) 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 junior adu (jadu) 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.
A Junior ADU is a unit up to 500 sq ft created inside your existing home's footprint, with its own entrance and an efficiency kitchen. JADUs can share a bathroom with the main house and, unlike standard ADUs, may carry an owner-occupancy requirement.
Junior ADU (JADU) near West Sacramento
ADU services in West Sacramento
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