ADU Builder in Rocklin, CA
A second home on the lot you already own. Established neighborhoods, generous lots, and strong rental demand near Sierra College and the I-80 corridor.
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 Rocklin
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 Rocklin lot
Granite under the topsoil. Rocklin was quarry country, and shallow rock is common across the older parts of town. It matters for ADUs because excavation for footings, trenching and utility runs can cost more than a comparable Roseville lot. We check it during the site assessment rather than discovering it after the foundation bid.
Whitney Ranch and the newer tracts. Larger, flatter parcels with room for a genuine detached build — but HOA design review is usually part of the process. Older Rocklin near the downtown quarry district has smaller lots where a garage conversion or attached unit is generally the more realistic route.
Recent projects
Placerville, CA
Rocklin permits, handled
Three dwellings on one lot. Primary home, ADU and junior ADU — allowed on most Rocklin parcels under California law.
City of Rocklin plan review and inspections. Managed in-house alongside engineering and Title 24. One team, 3D concept to final walkthrough.
Sierra College and the I-80 corridor. Rocklin has a rental market most Placer County towns don’t — college staff, students and commuters who want something smaller than a house and closer than Sacramento. That makes a permitted one-bedroom ADU one of the more reliably rentable structures you can add to a Rocklin lot.
City of Rocklin plan review. Rocklin runs its own building and planning departments, and ADU applications go through the city rather than the county. We prepare the submittal package — site plan, structural, Title 24 — as one set so it enters plan check complete.
What a Rocklin 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 you can visit
Minutes away. Headquartered in 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 Rocklin site assessment
Tell us about your lot. We’ll confirm what Rocklin 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