Add a second home to the property you already own.
Golden Valley Development designs and builds fully finished, code-compliant accessory dwelling units up to 1,200 sq ft — engineered around how you actually live. Guest suite, rental, home office, or a purpose-built leisure space. One team, from first 3D render to final walkthrough.
Licensed & insured · Site planning, engineering & permitting handled in-house
What your Placer County parcel allows
Most residential parcels can hold a primary home, an ADU, and a junior ADU — three dwellings on one lot.
A detached ADU can be built up to 1,200 square feet, with ceiling height and layout specified for your intended use.
Every ADU requires permits and inspections — we handle engineering, permitting, and construction as one process.
Poolside Leisure Retreat — Placerville
Built for year-round play
A detached studio with soaring ceilings, a full impact screen for golf simulation, and a lounge to watch from. Site-planned, engineered, permitted, and built by one team — finished to the same standard as the main house.
Three ways homeowners use the space
Leisure ADUs
Golf sims, home theaters, gyms, and studios — ceiling heights, power, insulation, and sound all specified for the activity, not retrofitted around it.
Guest & In-Law Suites
A private, fully equipped home for parents, adult kids, or visitors — kitchen, bath, laundry, and its own entrance, steps from yours.
Garage Conversions
Turn an underused garage into a legal, permitted dwelling — one of the fastest, most cost-effective paths to rental income or extra living space.
What our clients say
Trending ADU designs
ADU questions, answered
How big can my ADU be?
Do you handle permits and engineering?
Can I add a kitchen, bathroom, or bar?
Does an ADU add value, and can I rent it later?
Find out what your lot can hold.
Tell us your address and how you’d use the space. We’ll confirm what Placer County allows on your parcel and sketch a first concept — free, no obligation.