CA License #1119373Future Generation
Custom-designed ADU on a roomy Carmichael lot, sited around mature oaks and matched to the main house.
Carmichael · Custom ADU

A Carmichael ADU drawn for your lot,
your oaks, and the family moving in.

The big leafy lots out here are made for a custom unit — but the mature oaks, the occasional slope, and a few septic homes mean a catalog plan rarely fits. We draw one that does.

  • 30+ Years Experience
  • Licensed & Insured
  • 100+ 5-Star Reviews
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Estimate Your ADU Project

ADU Type

Size — 400 sq ft

Estimated Cost

$134,000

Rental Income

$2,000/mo

Payback Period

6.3 yrs

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Trusted by homeowners across Sacramento & surrounding areas.

Custom ADU in Carmichael — fast facts

CityCarmichael
ADU typeCustom ADU
Contractor licenseCSLB #1119373
Free estimate(916) 677-9774

Last updated

Why custom in Carmichael

Big lots, old trees, one-off plans

Carmichael is one of the better spots in the region to build custom, and the reason is space. Quarter-acre and half-acre-plus parcels are normal out here, some of them equestrian, so there's real room to site a detached unit instead of wedging it against the fence. The catch: those leafy mid-century lots come loaded with mature oaks and elms, and a stock plan that wants a clear flat rectangle ignores every one of them. Custom starts from your actual parcel — the protected trees and their drip lines, the grade, the setbacks Sacramento County holds you to. Then we shape a unit to fit. Stock makes your lot obey the plan. On a Carmichael lot, that almost never works out cleanly.

Custom ADU framed on a roomy Carmichael lot, sited to protect existing mature trees.
  • Generous quarter- and half-acre lots leave real room to place a unit
  • Designed around mature oaks and elms, not a fixed catalog pad
  • The answer when no off-the-shelf footprint lands on the lot
The design phase

Site walk to permit, drawn in-house

Custom gets won in the drawings, so that's where we spend the hours. It opens with a site walk and a measure-up. I've walked enough Carmichael backyards off Stanley and Cypress to know a survey leaves things out — it won't tell you which oaks trigger the county's tree review, how far a canopy actually reaches over the spot you wanted, or that a river-adjacent lot runs septic. That first visit reshapes the plan more often than not. Then concept sketches. You react, we revise. Most clients run two or three rounds before the floor plan feels right; a handful push past five. When the layout locks we draw the full construction set — structural, Title-24, mechanical, plumbing, the SMUD load calc. The honest part: this front end runs six to ten weeks before anything hits the county counter.

Custom ADU floor plan and elevations laid out during the Carmichael design phase.
  • Site walk and tree check before a single line gets drawn
  • Two to five revision rounds until the floor plan is right
  • Full construction documents drawn in-house, then filed with the county
Matching the main house

Mid-century homes, matched on purpose

A custom unit should look like it grew out of your house, not like it got parked behind it. Carmichael makes that doable because the housing has a real through-line — this is an established mid-century area, and a lot of it is ranch homes: low roof pitches, wide eaves, long horizontal lines, brick or lap siding. Around the Jesuit and Del Campo school neighborhoods and the streets off Garfield you see that ranch DNA over and over. Out toward the river off Fair Oaks Blvd the lots get bigger and the homes get more individual, sometimes equestrian properties where you're matching a whole place. We pull roof pitch off your actual house, match the eave depth, copy the trim, and source siding that reads the same from the street. A copied stock elevation almost never belongs. A drawn one does.

Custom ADU exterior detailed to match a Carmichael ranch home's roofline and siding, from our nearby attached-ADU project.
  • Low-pitch ranch detailing for the mid-century streets
  • Bigger, more individual homes matched on the river-adjacent lots
  • Roof pitch, eave depth and trim drawn to your specific house
Multi-gen + finishes

Multi-generational layouts done right

A lot of our Carmichael custom work is families solving one exact problem — aging parents who want their own front door, or an adult kid staring at rents who isn't moving out. That reshapes the plan. We draw zero-step entries, 36-inch doorways, curbless showers with grab-bar blocking already set in the walls, and a second primary suite so two generations each keep privacy. The detached state ceiling is 1,200 sq ft, and custom clients tend to push right up against it — at that size you fit two real bedrooms, a full kitchen, a proper living room. The roomy Carmichael lots give you space to actually place a unit that size without crowding the main house or the oaks. Then there's finish level. Quartz, real oak floors, a tiled shower instead of a fiberglass insert. Custom is where the premium package fits, designed in from day one rather than bolted on.

Aerial of a larger custom ADU near the 1,200 sq ft ceiling on a roomy Carmichael lot.
  • Zero-step entries, wider doorways, curbless showers, grab-bar blocking
  • Second primary suite so two generations share without crowding
  • Quartz, hardwood and full tile drawn in, not added on later
Build Smart. Invest Wise.

Build Your ADU.
Your Investment,
Your Future.

From design to move-in, we handle everything. Transparent pricing, on-time delivery, and uncompromising quality.

Custom Designs

Tailored to you

Built to Last

Premium materials

Fast Turnaround

On-time delivery

Full-Service

From start to finish

30+

Years of Experience

120+

ADU Projects Completed

100+

Happy Homeowners

Completed ADU built by Future Generation in Sacramento

Built for Value.
Designed for Life.

Trusted by homeowners across Sacramento & surrounding areas.

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Your Live Estimate

Detached ADU800 sq ftStandard

Estimated Construction Cost

$189,000

≈ $236/sq ft · all-in, turnkey

Est. Rental Income$2,800/mo
Annual Income$33,600/yr
Build Timeline5–7 months
Payback Period6.3 yrs

15.8% annual ROI

Based on local rents & your selections

Estimate for planning only. Final pricing depends on site conditions, lot, and city fees. Get an exact quote from our team — free.

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I'm Tim, your ADU specialist.

I'll help you build smart and maximize your investment.

Tim, ADU specialist at Future Generation

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Tim, ADU specialist

“Every ADU we build is designed to add long-term value and open new possibilities for your property. Let's build something great together.”

— Tim, ADU Specialist

Custom Designs

Built to fit your property & needs

Turnkey Process

We handle permits, plans & everything

Built to Last

Quality craftsmanship that stands the test

Financing Made Simple

$0 Down Options. Build Now, Pay Over Time.

You shouldn't have to drain your savings to build wealth. We partner with trusted ADU lenders to find financing that fits — many homeowners build with little to nothing out of pocket.

Home Equity (HELOC)

Tap your existing equity at competitive rates — the most popular way to fund an ADU.

Renovation Loans

Finance the build against your home's projected after-completion value.

ADU-Specific Financing

Specialized lenders who underwrite based on the rental income your ADU will produce.

Cash-Out Refinance

Roll the project into a new mortgage and keep one simple monthly payment.

Estimate Your Monthly Payment

See what financing your ADU could look like — and how rental income can help cover it.

$180,000Loan amount

Credit Score

Very good · 700–739

Estimated Monthly Payment

$1,320/mo

At 7.99% APR over 30 years (illustrative)

  • Often offset by $2,000–$3,500/mo in rental income
  • No prepayment penalties with most partners
  • Pre-qualification with no impact to your credit

Illustrative only — not a loan offer. Actual rates and terms are set by third-party lenders based on your qualifications.

Frequently asked

Questions, answered

The most common things Sacramento homeowners ask before starting an ADU project.

  • Custom is the priciest path — I won't soft-pedal it. For 2025-2026 we're seeing finished custom detached units in Carmichael land roughly $388K to $580K depending on size, finish level and how rough the site is, call it $312 to $485 a square foot. The big variables here are the mature trees, an occasional slope on the river-adjacent lots, and whether you're on septic — protecting oaks, working around root zones, or upsizing a septic system all add cost a flat-lot stock plan never sees. A 1,150 sq ft premium unit with a tree-protection plan and a septic expansion can run past $535K. A catalog plan on clear, sewered ground would cost less. You're paying for the design, the bespoke footprint and the finishes.
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(916) 677-9774
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Tim, ADU specialist at Future Generation

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Carrie Z
I had two bathrooms completely remodeled, two windows replaced and some siding. Everything stayed on track as planned and I absolutely love the end product. The communication was great.
Carrie Z · Google Review
9 min read1,987 words8 sections

Custom ADU design and construction in Carmichael

Carmichael is one of the easier places in the region to build a detached ADU — the lots are big and leafy, with quarter-acre and half-acre-plus parcels all over. But that same setting is why a stock plan rarely fits: mature oaks the county protects, the odd slope on a river-adjacent lot, a few homes still on septic, and families who need a unit drawn around aging parents. That's when you build custom. We're a Sacramento design-build crew 15 minutes west (CA license #1119373) that draws a bespoke ADU for your exact Carmichael lot and builds it — design through final inspection, one team the whole way. Call (916) 677-9774.

01Section

What actually makes an ADU custom

People throw "custom" around loosely, so let me draw the line. A stock or model ADU is a plan we've already drawn and built before — pick a size, maybe swap a finish, and it drops onto a flat pad. Quickest route, cheapest route, and for a clean rectangular Carmichael backyard with no protected trees in the way, it's often the right one. We build those gladly. But it isn't custom.

Custom means the design starts at zero, on your parcel, for your situation. Our designer takes the survey, the Sacramento County setbacks, the oaks and elms and their drip lines, any grade rolling toward the river, the sight line from the main house, and how your family actually plans to live. Then a unit gets drawn that didn't exist until your lot called for it. The footprint bends to the constraints. The roofline answers your house. Nobody else has this plan.