ADU Builder in Folsom, CA
A second home on the lot you already own. Mature lots, strong rental demand along the American River corridor, and property values that make a second dwelling a real investment.
See your ADU in 3D before we build — now $1,500 off your design.
Or call (916) 671-0802 — free site assessment, no obligation.
Your ADU options
What we build in Folsom
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.
Siting an ADU on a Folsom lot
Historic District lots and alley access. Older Folsom near Sutter Street has narrow, deep parcels, many with rear alley access and original detached garages. Those garages are often the single best ADU candidate in the city — the footprint exists, the access is separate, and the conversion avoids reshaping the main yard.
Empire Ranch, Broadstone and the newer areas. Tighter lot coverage and consistent HOA review. Attached ADUs and junior ADUs frequently pencil better here than detached builds, because they work within the existing envelope instead of competing with setback and coverage limits.
Recent projects
Placerville, CA
Folsom permits, handled
Three dwellings on one lot. Primary home, ADU and junior ADU — allowed on most Folsom parcels under California law.
City of Folsom plan review and inspections. Site planning, structural engineering and Title 24 handled in-house.
Folsom is Sacramento County, not Placer. A detail that trips people up: your ADU runs through the City of Folsom and Sacramento County systems, not the Placer County process most of our other service areas use. Different forms, different plan-check queue. We work in both.
Why Folsom ADUs rent well. The Intel campus and the American River corridor keep demand strong for smaller, well-finished units. Folsom property values also mean a permitted second dwelling tends to return more on resale here than in most of the region.
What a Folsom ADU costs
$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
A local team, minutes away
Based in nearby Loomis. CSLB #1030793, licensed and insured.
One crew, start to finish. Design through keys — no handoffs, no subcontractor roulette.
See it first. Full 3D before we break ground.
Get your free Folsom site assessment
Tell us about your lot. We’ll confirm what Folsom allows, flag the cost drivers, and sketch a first concept — free.
Prefer to talk? Call (916) 671-0802.
CA licensed & insured · CSLB #1030793 · Family-owned in Loomis