CA License #1119373Future Generation
Custom-designed ADU on an Elk Grove lot, sized for clay soil and matched to the main house.
Elk Grove · Custom ADU

An Elk Grove ADU drawn for clay,
your house, and the family moving in.

Most Elk Grove lots are flat, modest, and HOA-bound — a catalog plan ignores all three. Our designer draws a bespoke unit around them, then we build it to final.

  • 30+ Years Experience
  • Licensed & Insured
  • 100+ 5-Star Reviews
ADU Estimator

Estimate Your ADU Project

ADU Type

Size — 400 sq ft

Estimated Cost

$134,000

Rental Income

$2,000/mo

Payback Period

6.3 yrs

Fast. Free. No obligation.

Trusted by homeowners across Sacramento & surrounding areas.

Custom ADU in Elk Grove — fast facts

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

Last updated

Why custom in Elk Grove

When the family, not the plan, decides

A stock detached plan assumes a generic family and a generic backyard. Elk Grove rarely hands you the generic family. We get the calls from Laguna and Stonelake where a modest lot has to hold a full second household, and from East Franklin where parents are moving in and want their own door. Custom answers what a pre-drawn rectangle can't. Our designer starts from your actual parcel — the setbacks, the HOA fence line, where the kitchen window faces, how three generations will share the back fifty feet — and shapes a unit to it. Stock makes your family fit the plan. Custom makes the plan fit your family. It costs more, and on the multi-gen asks we see out here it usually earns the difference.

Custom ADU framed on an Elk Grove lot, sited around the HOA fence line and main house.
  • Drawn around a modest Laguna or Stonelake lot that still has to do a lot
  • Designer works from your survey and soils report, not a fixed pad
  • The answer when the family need is too specific for a shelf plan
The design phase

Design phase, site walk to permit

Custom is won in the drawings, so we spend the hours there. It opens with a site walk and a measure-up — I've walked enough Elk Grove backyards to know the survey misses things, like exactly how a neighbor's two-story window in Laguna Ridge stares into the spot you wanted for a bedroom. Then concept sketches. You react, we revise. Most clients run two or three rounds before a floor plan feels right; a couple push past five. Once the layout locks we move to construction documents: structural, Title-24, mechanical, plumbing, and the SMUD load calc. The honest part — this front end runs five to nine weeks before a single permit lands at the City of Elk Grove counter. Longer than any stock plan. That's the trade for a unit nobody else owns.

Custom ADU floor plan and elevations laid out during the Elk Grove design phase.
  • Site walk and measure-up 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 in Elk Grove
Matching the main house

From Laguna West to Sheldon

A custom unit should look like it grew out of your house, not like it got parked behind it. Elk Grove makes that real work because the tracts vary more than they look. Laguna West and Stonelake run lakeside two-story stucco with tight HOA color palettes. East Franklin and Laguna Ridge are newer pattern-book elevations — specific roof pitches, specific trim. Out east toward Sheldon you've got bigger rural-residential parcels and horse properties where the main house might be a ranch from a different decade entirely. We match roof pitch, pull eave depth, copy trim and source siding that reads the same from the street. Going custom is the only way the ADU ends up belonging to the property — a copied stock elevation almost never does.

Custom ADU exterior detailed to match an Elk Grove home's roofline and siding.
  • Lakeside stucco match for Laguna West and Stonelake elevations
  • Pattern-book pitch and trim for East Franklin and Laguna Ridge
  • Ranch-appropriate detailing for the larger Sheldon-area properties
Multi-gen + finishes

Multi-generational layouts done right

A lot of our Elk Grove custom work is families solving one exact problem — aging parents who want their own front door, or an adult kid staring at rising rents who isn't leaving. This town has heavy multi-gen demand, and it reshapes the plan. We draw zero-step entries, 36-inch doorways, curbless showers with grab-bar blocking already 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. Then there's finish level. Quartz, real oak floors, a tiled shower instead of a fiberglass insert. Custom is where the premium package actually fits, designed in from day one rather than bolted on.

Aerial of a larger custom ADU near the 1,200 sq ft ceiling on an Elk Grove 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.

Hi there!

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 Elk Grove land roughly $372K to $560K depending on size, finish level and the lot, call it $310 to $470 a square foot. The clay soil here pushes the foundation number up before anything else does, because even a small unit gets an engineered slab instead of a generic one. A 1,150 sq ft premium multi-gen unit can run past $520K. A stock plan on the same lot would cost less. You're paying for the design, the bespoke footprint and the finishes — that's the honest breakdown.
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Save up to $5,000 on your detached, attached, or garage-conversion ADU. Permits and design included.

(916) 677-9774
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Tim, ADU specialist at Future Generation

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We treat every home like it's our own — quality work, clear communication, and happy homeowners.

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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
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Custom ADU design and construction in Elk Grove

Some Elk Grove backyards just won't take a stock plan — a modest Laguna lot that still has to hold a full second household, an East Franklin family with parents moving in who need a unit drawn around them, or a Sheldon-area parcel on septic with its own rules. That's when you build custom. We're a Sacramento design-build crew 20 minutes north (CA license #1119373) that draws a bespoke ADU for your exact Elk Grove 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 pad. Quickest, cheapest route, and for a clean rectangular Elk Grove backyard with a simple one-bedroom ask it's often the right one. We're happy to build those. But it isn't custom.

Custom means the design starts at zero, on your parcel, for your situation. Our designer takes the survey, the City of Elk Grove setbacks, the clay soil, the HOA fence line, the sight line from the main house, and how your family actually plans to live — then draws a unit 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, because nobody else has your exact mix of lot, soil and family.