Detached · Attached · Garage Conversions · Junior ADUs

Custom ADU Builder in Placer County

Claim $1,500 Off Your Design

Licensed & InsuredCSLB #1030793
Family-OwnedBased in Loomis, CA
Free 3D Design ConsultSee it before we dig
Permits & Engineering In-HousePlacer County ADU rules handled

Your ADU options

Detached ADUsUp to 1,200 sq ft, standalone

Attached ADUsShares a wall, lower cost

Garage ConversionsFastest route to rental income

Junior ADUsUp to 500 sq ft, in-footprint

What we build

Detached ADU — up to 1,200 sq ft. A standalone second home on your lot, with its own entrance, kitchen and bath. The most private option and the strongest for rental income or multigenerational living.

Attached ADU. Shares a wall with your main house, which keeps foundation and utility costs down. Often the most budget-efficient route to a full second dwelling.

Garage conversion. Turns square footage you already have into a legal, permitted living space. Typically the fastest path to rental income, since the shell already exists.

Junior ADU — up to 500 sq ft. Built within your home’s existing footprint. Ideal for an in-law suite, a home office, or a first step into an ADU without reshaping the lot.

Purpose-built leisure space. Golf simulators, home gyms, theatre rooms and studios — designed around ceiling height, power and sound from the first concept rather than retrofitted after.

Guest suites and rental units. Finished, code-compliant dwellings up to 1,200 sq ft — engineered around how you actually live.

Purpose-built leisure space. Golf simulators, gyms and theaters — ceiling height and power planned from day one.

Recent projects

Placerville, CA
Placerville, CA
Placerville, CA

What your Placer County parcel allows

Three dwellings on one lot. Most residential parcels can hold a primary home, an ADU and a junior ADU.

Up to 1,200 sq ft detached. Ceiling height and layout specified for your intended use.

One turnkey team. Engineering, permitting and construction handled as a single process.

3D render of a custom detached ADU before construction — 3D concept — before we break ground

The same custom ADU built and finished — The finished build

What an ADU costs

ADU interior with kitchenette and living space

$150,000 – $400,000. Garage conversions start lower. Large detached units with custom finishes run higher.

See the 2026 ADU cost guide, or get a real number for your lot with a free site assessment.

What our clients say

$1,500 off your design – limited spots

Family-owned, licensed Placer County team. One crew handles design, engineering, permits and construction from concept to move-in. Flexible financing available. Book your free site assessment today.

Start With a Free 3D Design Consult

Family-owned, licensed & insured. See your ADU in 3D before we build – now $1,500 off your design.

ADU questions, answered

How big can my ADU be?
In Placer County, a detached ADU can generally be built up to 1,200 sq ft, and most parcels allow up to three dwellings total. We confirm exactly what your property allows during your free site assessment.

Do you handle permits and engineering?
Yes — all site planning, structural engineering, permits, and inspections are handled by our licensed team for a fully turnkey build. You never chase paperwork.

Can I add a kitchen, bathroom, or bar?
Absolutely. We plan the plumbing and electrical for full kitchens, baths, wet bars, or a golf-sim setup — whatever the space is built for, it’s designed in from day one.

Does an ADU add value, and can I rent it later?
Yes. As a permitted, legal dwelling it adds real value and stays flexible — a guest suite today, an in-law unit or long-term rental tomorrow. (ADUs can’t be sold separately from the main home, and rentals under 30 days aren’t permitted.)