Find Attached ADU Contractors Near You
An attached ADU is built as an addition to your existing home, sharing one or more walls. They cost $175,000–$325,000 and offer a balance between cost efficiency and privacy.
4,140 contractors found
About Attached ADU
Attached ADUs extend your home’s footprint with a separate living unit that shares at least one wall. They cost less than detached units due to shared structural elements and utility connections. Options include side additions, rear additions, second-story additions, or above-garage conversions.
Typical Cost Range
$175,000 – $325,000
Timeline
6–10 months
Attached ADU Pros and Cons
Pros
- +Lower cost than detached — shared walls and utilities
- +No separate utility connections needed
- +Works well on smaller lots with limited space
- +Can add a second story above existing footprint
Cons
- –Less privacy than a detached ADU
- –Shared walls require fire separation and soundproofing
- –Construction disrupts daily life in the main home
- –Design constrained by existing home structure
Browse Attached ADU Contractors by State
Top Cities for Attached ADU
Top Rated Attached ADU Contractors
Joseph Corlett, LLC
Sarasota, FL
Joseph Corlett, LLC — licensed ADU contractor in Sarasota, FL.
Schick Construction, LLC
Orlando, FL
Schick Construction, LLC — licensed ADU contractor in Orlando, FL.
Fortified Structures Group LLC
Orlando, FL
Fortified Structures Group LLC — licensed ADU contractor in Orlando, FL.
Premiere Builders
Tampa, FL
Premiere Builders — licensed ADU contractor in Tampa, FL.
Ecobuild Group Inc
Jacksonville, FL
Ecobuild Group Inc — licensed ADU contractor in Jacksonville, FL.
Miami Remodeling & additions inc
Miami, FL
Miami Remodeling & additions inc — licensed ADU contractor in Miami, FL.
SUNFLO CONSTRUCTION GROUP INC
Orlando, FL
Sunflo Construction Group Inc — licensed ADU contractor in Orlando, FL.
Innovative Mitigation and Restoration LLC
St. Petersburg, FL
Innovative Mitigation and Restoration LLC — licensed ADU contractor in St. Petersburg, FL.
Innovative Mitigation and Restoration LLC
St. Petersburg, FL
Innovative Mitigation and Restoration LLC — licensed ADU contractor in St. Petersburg, FL.