Find Detached ADU Builders and Contractors
A detached ADU is a standalone accessory dwelling unit built separately from the main house. These backyard homes offer maximum privacy and can range from 400 to 1,200 sqft, with costs from $200,000 to $400,000.
4,138 contractors found
About Detached ADU
Detached ADUs are the highest-value type of accessory dwelling unit, offering complete separation from the primary residence. Also known as backyard cottages, granny flats, or guest houses, detached ADUs add the most resale value and generate the highest rental income. In Florida, homeowners often search for these as "guest houses," "casitas," or "in-law suites."
Typical Cost Range
$200,000 – $400,000+
Timeline
8–14 months
Detached ADU Pros and Cons
Pros
- +Maximum privacy — fully separate from main home
- +Highest rental income potential
- +Adds the most resale value to your property
- +Flexible design — studio, 1BR, or 2BR layouts
Cons
- –Highest cost ADU type ($200K–$400K+)
- –Longest construction timeline (8–14 months)
- –Requires sufficient lot space and setback clearance
- –Utility connections (sewer, water, electric) add cost
Browse Detached ADU Contractors by State
Top Cities for Detached ADU
Top Rated Detached 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.
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.
SUNFLO CONSTRUCTION GROUP INC
Orlando, FL
Sunflo Construction Group Inc — licensed ADU contractor in Orlando, FL.