CA License #1119373Future Generation
Aerial view of a finished detached ADU standing free in a Citrus Heights backyard.
Citrus Heights · Detached ADU

A standalone backyard unit,
built right in Citrus Heights.

Its own foundation, its own roof, its own front door — a true detached ADU set behind your Citrus Heights ranch home, designed and built by a crew that knows these flat 60s-70s lots.

  • 30+ Years Experience
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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.

Detached ADU in Citrus Heights — fast facts

CityCitrus Heights
ADU typeDetached ADU
Contractor licenseCSLB #1119373
Free estimate(916) 677-9774

Last updated

Freestanding, shares nothing

A detached unit is its own building

The thing that makes a detached ADU worth it is also the part that makes it the bigger job: it shares nothing structural with your house. Own slab. Own walls. Own roof. Last year off Sylvan Old Auburn Road we set a 612 sq ft single-story unit behind a 1968 ranch, and because it stood completely free we could swing the living-room windows toward the morning sun instead of the side fence. That's what detached buys you. The cost of that freedom is a second foundation, a separate roof system, and a materials path running the full length of the yard. Flat Citrus Heights lots make the path easy. We still map every foot of it before you sign.

Detached ADU framed up on its own foundation in a Citrus Heights backyard.
  • Independent foundation, framing, roof and full exterior envelope
  • Oriented to your actual Citrus Heights lot, not a fixed pad
  • No shared wall means fewer fire-separation headaches than attached
City of Citrus Heights permitting

The Citrus Heights detached permit path

Here's a thing people get wrong. Citrus Heights incorporated back in 1997, so it's its own city now — your detached ADU permit runs through the City of Citrus Heights, not Sacramento County. Water and sewer go through the City too. State law made the review ministerial, which means a complete, code-compliant set has to get issued, and we lean on that. We submit the whole package: site plan, floor plan, elevations, structural, Title-24, MEP sheets, and the SMUD service coordination. Clean first submissions on detached units have been coming back in roughly 4-6 weeks lately. Hand the counter a thin set — half a structural package, no panel plan — and you'll burn two or three correction cycles you never needed.

Completed detached ADU exterior on a Citrus Heights residential lot.
  • Reviewed by the City of Citrus Heights, not Sacramento County
  • Complete plan set drawn in-house — fewer correction rounds
  • Ministerial review under state law: a clean set must be issued
Access, SMUD + old laterals

Getting power and pipe to the back

Everything that builds a detached unit has to physically reach the backyard, and Citrus Heights makes that part easy — these are flat, modest tract lots, mostly 1950s-70s ranch homes around Birdcage Heights, Stock Ranch, and the Mariposa area, with side yards you can usually walk a wheelbarrow down. Power is SMUD, which is the friendlier muni in this region. The catch sits underground and in the garage. A lot of these 60s-70s homes still run an original 100-amp panel that can't carry a second dwelling, and the sewer laterals are aging clay or cast iron. We pull the panel cover and scope the lateral on the first visit so neither one surprises you mid-build.

Detached ADU construction with materials staged in a Citrus Heights backyard.
  • Flat lots and open side yards make backyard delivery simple
  • SMUD service, panel and meter coordination handled start to finish
  • Old 100-amp panels and aging sewer laterals checked before we price
What the number actually is

What a detached ADU costs here

I'll give you a range, then tell you why ranges fib a little. A 600-ish sq ft one-bed detached unit with sensible mid-grade finishes generally lands around $239K to $298K all-in in Citrus Heights — this is one of the more affordable ADU markets in the Sacramento area, and the flat lots are part of why. Push to a 1,000+ sq ft two-bedroom with nicer cabinetry and fully separate utilities and you're closer to $358K to $452K. The honest caveat: detached carries its own foundation and its own roof, so it almost never pencils cheaper than converting an existing garage. If budget is the only driver, conversion wins. What moves your number most here is the old panel and that aging lateral — we price both before you sign.

Interior finishes inside a completed detached ADU in Citrus Heights.
  • Fixed-price proposal after a free in-person Citrus Heights site visit
  • Detached runs above a garage conversion — second foundation and roof
  • Panel upgrade and sewer-lateral work priced up front, not as surprises
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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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“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.

  • Through the City of Citrus Heights. The city incorporated in 1997, so even though you're inside Sacramento County geographically, your permit, plan check, and issuance all run through the City — not the County. This trips up homeowners who assume anything in the county goes through one Sacramento office. Water and sewer are City of Citrus Heights too. The city has its own ADU submittal requirements and fee schedule, and we confirm your parcel is inside city limits before we draw a single sheet, because submitting to the wrong agency is a quiet way to lose two weeks.
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Tim, ADU specialist at Future Generation

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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.
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Building a Detached ADU in Citrus Heights — A Straight-Talk Guide for Local Homeowners

A detached ADU is the version most Citrus Heights homeowners have in mind: a standalone unit behind the house with its own foundation, its own roof, and its own front door, fully independent of the main home. It's also the version with the most moving parts. This guide is about building one inside the City of Citrus Heights — the permit counter that runs separate from Sacramento County, the SMUD coordination, the old panels and tired sewer laterals on these 60s-70s ranch homes, the real 2025-2026 numbers. We build these for a living, so this is what we'd tell a neighbor over the fence.

01Section

What "detached" actually means here

Detached means freestanding. The unit doesn't touch your house — its own slab or stem-wall foundation, its own roof structure, four of its own exterior walls. That's the line that separates it from an attached ADU, which shares at least one wall with the main home, and from a garage conversion, which reuses an existing shell. All three are legitimate ADUs under California law. They just build, cost, and live differently.

The appeal of detached is independence. Because it stands alone, we can place it where the lot wants it and turn it for light and privacy instead of locking it to the geometry of your house. A tenant or a family member gets a genuinely separate home — their own entrance off the side yard, their own bit of outdoor space, no footsteps overhead. On a typical Citrus Heights ranch lot, a single-story unit tucked at the back of the yard reads as a small home of its own rather than a bolt-on addition.