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California General Contractor License #848613 (916) 655-9555

Sacramento ADU builder

California’s ADU & Tiny Home Builder

More space, less stress. Private rooms for aging parents, adult children, or rental income — on the property you already own.

  • Quick answers
  • Honest guidance
  • No pressure
  • 40+ years combined construction experience

Problem & solution

Why most ADU plans collapse. And how yours can succeed.

You want the right space — but one wrong assumption can cost months, thousands of dollars, or a rejected permit.

The problems

  • Zoning confusion Will my lot even qualify?
  • Process overwhelm Permits, utilities, contractors — all on me?
  • Cost uncertainty What will this actually cost?

The White River way

  • Zoning clarity Straight answers before you commit.
  • Turnkey build We handle the work, start to finish.
  • Transparent pricing Costs you can count on.

ADU experts

One team for your entire ADU project

From Sacramento zoning to construction, we stay on the job until you have keys in hand.

  • One focus We build ADUs — not side jobs.
  • One team Design, permits, utilities, build.
  • Turnkey On-site construction, not a dropped-off box.

Our ADU process

How the work actually moves

Your guide to a backyard ADU in the Sacramento region.

  1. 01

    Book your consultation

    A short conversation on budget, timeline, and whether the lot is a fit.

  2. 02

    Greenlight review

    We research zoning, buildability, fees, and rental potential before you sign a full contract.

  3. 03

    Design & approve

    Pick a model, refine the layout, and lock a plan that fits the yard and the family.

  4. 04

    Permits & construction

    Our ADU team runs permits, utilities, inspections, and the build.

  5. 05

    Deliver the keys

    Final walkthrough, quality check, and a move-in ready backyard home.

Common ADU mistakes

Waiting is the expensive option

Construction climbs 3–5% a year

On a $150k ADU, twelve months of delay can add $4,500–$7,500 to the same build.

A 1% rate drop saves about $90 / month

Meanwhile $2,000 apartment rent is $24,000 over the year you waited.

You can lose $21,600 in rent

At $1,800 a month, a year without the ADU is income that never arrives.

Models

ADU models

The same model lineup, adapted for White River Group. Choose a floor plan, then we fit it to your lot.

See all models

Our services

Sacramento’s ADU-only builders

Detached ADU

A backyard home for multigenerational living, guests, or long-term rent.

Two-story ADU

Two levels on a tighter lot — in-law suite, guest house, or rental.

Attached ADU

An addition for an office, guest room, or a quieter wing of the house.

Pool house ADU

Changing space, a kitchenette, or a small lounge beside the water.

Financing

Financing available through RenoFi

Many Sacramento homeowners fund an ADU without draining savings. We connect you with RenoFi so you can see payment options before you commit to a build.

Learn about RenoFi

Service area

We build about 25 miles from Sacramento

  • Sacramento
  • Roseville
  • Folsom
  • Rocklin
  • Granite Bay
  • El Dorado Hills
  • Rancho Cordova
  • Carmichael
  • Fair Oaks
  • Citrus Heights
  • Orangevale
  • Antelope
  • Loomis
  • Lincoln
  • West Sacramento

Start with a clear plan

Get clarity on fit, permits, and cost before you invest

Tell us the property and the goal. We’ll tell you what’s possible in your city — Folsom, Roseville, or a Sacramento backyard.

(916) 655-9555

Book a free consultation

Quick answers. Honest guidance. No pressure.

Leads go to info@whiterivergroups.com. Change the address in Appearance → Customize.