ADUs & additions
ADUs and room additions, built by one general contractor.
Add living space, rental income or room for family. A&M builds detached and attached ADUs and room additions, with every trade under one contract and 30+ years of construction experience behind the plan.
What we build
More space. More from your property.
Every property is different. We start by walking the lot with you and talking through what fits, what it takes and where the budget goes furthest.
Detached ADUs
- New backyard units
- Foundation through finish
- Kitchen and bathroom
- Utilities coordinated with the main house
Attached ADUs
- Units connected to the existing home
- Tie-in to existing structure and roof
- Separate entry and living space
- Matching exterior finishes
Room additions
- Extra bedrooms and living space
- Bigger kitchens and bathrooms
- Roof tie-ins handled by the same team
- Stucco, windows and paint to match
How it works
From the first idea to the final walkthrough.
Have plans already? Upload them with your estimate request. Still deciding? We’ll walk the property and talk through options first.
- 01
Walk the property
We look at the lot, access and existing conditions, and talk through how you want to use the space.
- 02
Plan and price
You receive a written scope and price based on the plans and the work involved, with every trade under one contract.
- 03
Build
We schedule and coordinate the trades, staged around the required city inspections, and keep you updated as the work moves.
- 04
Punch-list walkthrough
After the job we come back, walk it with you and handle touch-ups at no charge.
Our crew at work
The work behind the walls.
Framing, insulation and drywall from A&M jobs. These photos show our crew at work, not a specific ADU.
Why A&M
Why homeowners and owners choose A&M.
One licensed team, one contract and one point of contact from the first walkthrough to the last touch-up.
- 01
Licensed, bonded & insured
California general contractor, CSLB #1148491. Search the number on the CSLB website to verify it.
- 02
30+ years of experience
More than three decades of hands-on construction behind every scope and every price.
- 03
One contract for every trade
Kitchens, baths, cabinetry, roofing, tile, paint, drywall, insulation, electrical, plumbing, windows, stucco, cement and masonry.
- 04
Warranty walkthrough
After every job, we come back for a punch-list walkthrough and handle touch-ups at no charge.
- 05
English & Spanish
Talk through your project, the scope and the schedule in the language you prefer.
Our warranty
We come back after every job.
After every job, we return for a punch-list walkthrough and handle touch-ups at no charge.
ADUs & additions
Thinking about an ADU or addition?
Share your city, what you want to add and any plans you have. We’ll follow up to set up a walkthrough.