Accessory Dwelling Units (ADU) in New Hampshire
The New Hampshire Accessory Dwelling Units statute (RSA 674:71-73) became law on June 1, 2017. The intent of the law is to expand the supply of housing in New Hampshire communities without further land development, as well as to encourage efficient use of existing housing stock and infrastructure, and provide an affordable housing option in communities.
The statute defines accessory dwelling units (ADUs) as residential living units that are within or attached to a single family dwelling, and provide independent living facilities for one or more persons.
New Hampshire ADU Guides
Accessory Dwelling Units in New Hampshire: A Guide for Municipalities (PDF)
A New Hampshire Homeowner's Guide to Accessory Dwelling Units (coming in August)
- NH Office of Strategic Initiatives ADU Information Resources (website)
- The New Law on Accessory Dwelling Units (New Hampshire Municipal Association)
- Fair Housing Enforcement - Occupancy Standards; Notice of Statement of Policy/Keating Memo (U.S. Department of Housing and Urban Development)
- Understanding the New Accessory Dwelling Unit Law (from New Hampshire Municipal Association's Municipal Law Lecture by Benjamin Frost, Esq.)
- New Hampshire Housing's Overview of ADU Law (PDF of PowerPoint)