Sierra ADU — Built on Integrity

Backyard homes for Placer County families.

Built on integrity, sized for your backyard.

Design, permitting, and construction under one roof — for homeowners in Rocklin, Roseville, Loomis, Granite Bay, Lincoln, and Auburn. One team, one contract, one clear path from first sketch to move-in day.

Licensed & Bonded

CSLB-licensed California general contractor

Placer County Local

We know Rocklin, Roseville & Loomis code

Up to 1,200 sq ft

Studio through three-bedroom layouts

One Team, Start to Finish

Design, permits, and build in-house

What We Build

Three ways to add a home to your property.

Every lot is different. We start by walking yours, then recommend the approach that makes the most sense for your setbacks, your budget, and how you actually plan to use the space.

Detached ADU

A standalone backyard home with its own entrance, address, and utilities. The most privacy for renters or family, and the strongest return when you decide to sell.

Attached ADU

An addition that shares a wall with your existing house. Ideal on narrower Roseville and Rocklin lots where a detached footprint won't clear the setbacks.

Garage Conversion

The fastest and most affordable route. Your existing slab and framing already do most of the work — we handle insulation, utilities, egress, and finishes.

Why Build One

More house, same lot.

California opened the door and Placer County followed. An ADU is now the most practical way to add real square footage without leaving the neighborhood you already chose.

Rental income

A backyard unit in the Rocklin–Roseville corridor rents steadily, and the numbers usually pencil well against the build cost.

Family close by

Aging parents or adult kids get a full home of their own — private front door, same driveway.

Property value

A permitted, well-built ADU adds usable square footage that appraisers and buyers both recognize.

Flexibility later

Home office now, guest suite next year, rental after that. The space adapts as your family does.

A detached accessory dwelling unit in a Placer County backyard

How It Works

Four steps. No handoffs.

You are not managing an architect, a permit expediter, and a contractor separately. One team carries the project the whole way.

01

Site Visit

We walk your property, measure setbacks, check utilities, and tell you honestly what will and won't fit.

02

Design & Bid

Floor plan, finishes, and a fixed written scope. You see the real number before anything is committed.

03

Permits

We prepare the drawings and carry them through Placer County or your city's plan check. You sign; we stand in line.

04

Build

Foundation through final inspection with one point of contact and a schedule you can actually hold us to.

Where We Build

Placer County and the greater Sacramento area.

Rocklin · Roseville · Loomis · Granite Bay · Lincoln · Auburn · Newcastle · Penryn · Colfax · Folsom · Citrus Heights · Orangevale

Let's see what your backyard can hold.

Free on-site consultation across Placer County. We'll measure, talk through your options, and give you a straight answer about cost and timeline — no obligation.