Sacramento County, California
ADU Builder in Carmichael
Upside ADU is a Carmichael ADU builder serving all of Sacramento County. We design, permit, and build all 5 ADU types — detached, garage conversion, attached, junior, and multigenerational — for a $1,000 deposit, with transparent fixed pricing. Permits run through the Sacramento County Building Permits & Inspection Division, which we handle end to end.
Your Carmichael ADU builder — from design to move-in
Large lots near the American River make Carmichael a favorite for spacious detached ADUs and multigenerational builds.
We build every type of ADU in Carmichael with one transparent, all-in price and a $1,000 deposit — the California legal maximum — then tie the rest of your payments to inspection-passed milestones so money only moves when verified work is done. When it's ready to rent, we'll connect you with a trusted local property manager.
Carmichael lots: Deep, mature-tree lots in Del Dayo and Old Carmichael easily fit a detached ADU set well back from the main home.
Popular Carmichael areas: Old Carmichael, Jesuit area, Del Dayo.
- $1,000 deposit — the CA legal max
- Inspection-tied milestone payments
- All 5 ADU types built here
- Property-manager referral when you rent
Carmichael ADU rules & limits
Carmichael is unincorporated Sacramento County, so ADUs permit through the County Building Permits & Inspection Division, not a city. County setbacks run 4 ft side/rear; older detached garages near the American River often need fire-separation and egress upgrades when converted.
Statewide, every Carmichael ADU under 750 sq ft is exempt from impact fees, detached units can reach 1,200 sq ft, and no replacement parking is required when you convert a garage. For the full Sacramento County rulebook — setbacks, height, and owner-occupancy by ADU type — see our Sacramento-region ADU rules & setbacks guide.
ADU services in Carmichael
Carmichael ADU cost & ROI
Carmichael ADUs run about $127,500–$440,640 all-in in 2026, and a typical unit rents for $1,600–$2,700 a month. Large lots near the American River support spacious detached and multigenerational units; Del Dayo and Old Carmichael command premium rents for the area.
See the full Carmichael ADU cost breakdown by type and size, run your own numbers with the ADU cost calculator, or see the full payback and rent-comp math in our ADU rental income & ROI guide.
Estimate your ADU
Ballpark 2026 turnkey cost, financing, and rental return for your area.
Estimated turnkey cost
$255–$367 / 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.
Permitting & timeline in Carmichael
Carmichael ADU permits are issued by the Sacramento County Building Permits & Inspection Division, since this area is unincorporated and reviewed at the county level. California law requires a decision within 60 days of a complete submittal, and pre-approved plan sets can shorten review to about 30 days. We prepare the full package, pull the permit, and manage every inspection so you never stand in line at a counter.
Plan on roughly 6–9 months end to end for a detached build: about 2–6 weeks of design, 4–10 weeks of permitting, and 12–16 weeks of construction. Garage conversions and junior ADUs move faster.
The Upside Guarantee
Your money is protected at every step
Sacramento homeowners were burned by builders who took huge deposits and vanished. We built Upside to be the opposite — structured so you're protected before, during, and after the build.
$1,000 down — the legal maximum
California caps a contractor's down payment at $1,000 or 10% of the contract — whichever is less. On an ADU that's $1,000, not the 30–50% other builders demanded. Everything after is earned.
Inspection-tied milestone draws
After the deposit you pay in defined draws — design, permit, foundation, framing, MEP, drywall, completion — each released only after that phase passes inspection.
Honest capacity & timelines
We only take on work we can actually deliver, with realistic schedules and references to completed local projects you can visit.
ADU projects in Carmichael
Much of Carmichael's ADU potential sits in old detached garages near the river — Del Dayo and Old Carmichael are full of them — where a conversion means fire-separation and egress upgrades to bring the structure up to code as living space. Every build is fixed-price, inspection-milestone funded, and backed by our written guarantee.
See completed builds, specs, and before-and-after photos in our Sacramento-region ADU project gallery.
ADUs in Carmichael — FAQs
Most Carmichael ADUs cost $127,500–$440,640 in 2026 depending on size and type, or roughly $255–$367 per square foot. A 750 sq ft detached unit runs about $191,250–$275,400 turnkey, with design, permits, and construction included.
Carmichael ADU permits run through the Sacramento County Building Permits & Inspection Division. Carmichael is unincorporated Sacramento County, so ADUs permit through the County Building Permits & Inspection Division, not a city. County setbacks run 4 ft side/rear; older detached garages near the American River often need fire-separation and egress upgrades when converted.
A typical Carmichael ADU rents for about $1,600–$2,700 a month in 2026, with detached and larger units at the top of that range. Large lots near the American River support spacious detached and multigenerational units; Del Dayo and Old Carmichael command premium rents for the area.
We're an ADU builder, not a property manager — but once it's built we'll connect you with vetted Sacramento County property managers we trust to lease and run it for you. Plenty of owners self-manage instead.
Nearby service areas
Popular ADU models
Costs & rules in Carmichael
Start your Carmichael ADU
Get a transparent quote and a free feasibility check for your Carmichael lot.