Davis, CA · Yolo County
Attached ADU in Davis
Upside ADU builds attached adus in Davis, Yolo County, for a $1,000 deposit with transparent fixed pricing and inspection-tied payments. A typical Davis attached adu runs $113,400–$303,450 all-in, and we permit it through the City of Davis Community Development & Sustainability end to end.
Davis rules that affect a attached adu
In Davis, 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 Davis Community Development & Sustainability reviews it as new attached square footage.
Local permitting: Davis permits through its Community Development & Sustainability department in Yolo County and is among the more ADU-friendly jurisdictions, with streamlined review. Note that JADUs here carry an owner-occupancy requirement, and energy/sustainability standards run above the state minimum.
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 Davis homeowners pick Upside
- $1,000 deposit — the CA legal max
- Inspection-tied milestone payments
- We know the City of Davis Community Development & Sustainability process
- Transparent, all-in Davis pricing
- Property-manager referral when you rent
Davis 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 $252–$357 per square foot, or $113,400–$303,450 for a finished, permitted unit. A typical Davis attached adu rents for $1,700–$2,800 a month.
| Size | Typical use | Davis all-in cost (2026) |
|---|---|---|
| 450 sq ft | Studio / 1-bed, max cash-on-cash | $113,400–$160,650 |
| 650 sq ft | 1–2 bed, most popular | $163,800–$232,050 |
| 850 sq ft | 2–3 bed / multigen, max value | $214,200–$303,450 |
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
$252–$357 / 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 Davis
Davis ADUs often pencil out for student leasing, which favors by-the-room layouts and the city's above-code energy standards. Central Davis lots are tight; Wildhorse and Mace Ranch are roomier for a full detached build. 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 Davis — FAQs
A attached adu in Davis typically runs $113,400–$303,450 turnkey in 2026, based on $252–$357 per square foot for the Yolo County market. We confirm your exact number with a free feasibility check.
Davis attached adu permits are handled by the City of Davis Community Development & Sustainability (Yolo County). Davis permits through its Community Development & Sustainability department in Yolo County and is among the more ADU-friendly jurisdictions, with streamlined review. Note that JADUs here carry an owner-occupancy requirement, and energy/sustainability standards run above the state minimum. We prepare and submit the full package and manage inspections.
A attached adu in Davis rents for about $1,700–$2,800 a month in 2026 depending on size and finish. UC Davis demand keeps occupancy high and rents resilient year-round; by-the-room student leasing can push effective yield well above a standard single-tenant ADU.
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 Davis
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