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  5. ADUs

Detached Housing

ADUs

ADUs illustration

Accessory Dwelling Unit (ADU) real estate development has gained significant momentum as an innovative solution to housing shortages and affordability issues. ADUs, also known as granny flats, in-law suites, or backyard cottages, are small, independent residential units located on the same lot as a larger, primary dwelling. The market for ADUs has been growing rapidly, with a substantial increase in permits issued for their construction, particularly in urban and suburban areas.

A key trend in the ADU market is the easing of zoning regulations and building codes by local governments to encourage their development. This shift is driven by the recognition of ADUs as a means to increase housing density and diversity without altering the character of existing neighborhoods. States like California have been at the forefront of this movement, witnessing a surge in ADU development due to legislative changes.

Sustainability and efficiency are central to ADU design, with many units featuring eco-friendly materials, energy-efficient appliances, and compact layouts. ADUs are increasingly being used for a variety of purposes, including housing for elderly family members, rental income sources, and affordable housing options for young adults and small families.

The rise of ADUs reflects a broader trend towards flexible and innovative housing solutions. Their ability to provide affordable, efficient, and community-integrated living spaces makes them an increasingly popular option in the diverse landscape of real estate development. This trend is expected to continue as more regions recognize the potential of ADUs to address their housing challenges.

Developers building in ADUs

57 in the database
California Forever
California Forever
ADUs
Employees11–50
Principals9
Markets1
Last updated: Aug 14, 2026
Coram Houses
Coram Houses
NC, United States
Coram Houses cover image
Employees2–10
Principals1
Markets1
Last updated: Aug 10, 2026
Ashria
Ashria
Sacramento, California
Ashria cover image
Employees11–50
Principals1
Markets1
Last updated: Aug 7, 2026
Suri Developers
Suri Developers
Suri Developers cover image
Employees2–10
Principals2
Markets3
Last updated: Aug 7, 2026
Waypoint Partners
Waypoint Partners
San Diego, CA
Waypoint Partners cover image
Employees2–10
Principals2
Markets1
Last updated: Aug 6, 2026
Champion Homes
Champion Homes
MI 48084, USA
Champion Homes cover image
Employees5,001–10,000
Principals12
Markets1
Last updated: Aug 6, 2026
View all 57 developers in ADUs

Top markets for ADUs

  • California· 40
  • Texas· 5
  • Arizona· 4
  • Massachusetts· 4
  • Washington· 4
  • District of Columbia· 3
  • Florida· 2
  • Nevada· 2

Typical unlevered yield on cost

5.5 - 8.0%

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