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Temple Terrace, FL, Imagine 2040 Comprehensive Plan
Updated January 2023This city's comprehensive plan belongs to the Accessory Dwelling Units, Capital Improvements Programming, Comprehensive Planning, and Housing Supply Planning collections. -
Prince George’s County, MD, Plan 2035 General Plan
Adopted May 2014The county’s comprehensive plan, which achieved Bronze-level recognition in APA's Comprehensive Plan Standards for Sustaining Places Recognition Program Pilot, includes several policy recommendations that support the development of accessory dwelling units. -
Secondary Suites: A Guide for Local Governments
2005This guide provides local governments in British Columbia, Canada, with information to help them develop regulations for accessory dwelling units. -
Municipal Planning Guidelines for Secondary Suites
2010This guide provides local governments in Manitoba, Canada, with information to help them develop regulations for accessory dwelling units. -
Accessory Dwelling Units: Model State Act and Local Ordinance
January 2021by: Coralette Hannon, Gerri Madrid-DavisThis guide includes model state and local legislation to encourage the development of accessory dwelling units. -
Sumner, WA, Design Guidelines
2008The city's design review process applies to new multifamily, commercial, and industrial developments. -
Charlottesville, VA, Code of Ordinances
Updated April 2018This regulation belongs to the Accessory Dwelling Units, Active Transportation, Housing Supply Planning, and Short-Term Residential Rentals collections. -
Coconino County, AZ, Zoning Ordinance
Updated December 2023This regulation belongs to the Accessory Dwelling Units, Housing Supply Planning, and Outdoor Lighting collections. -
Clallam County, WA, County Code
2017The county’s zoning code permits internal, attached, and detached accessory dwelling units by right in all districts that permit single-family residences, subject to use-specific standards. -
Mesa, AZ, Code of Ordinances
Updated May 2021These regulations belong to the Accessory Dwelling Units, Design Review, Group Housing, and Housing Supply Planning collections. -
Palmer, AK, City Code
2016The city’s zoning code permits internal, attached, and detached accessory dwelling units by right in all residential and agricultural districts, subject to use-specific standards. -
Port Aransas, TX, Code of Ordinances
2016The city’s zoning code permits internal, attached, and detached accessory dwelling units by right in all zoning districts that permit single-family residences, subject to use-specific standards -
Lexington, MA, Town Bylaws
2016The town’s zoning code permits internal and attached accessory apartments by right in multiple residential districts and larger internal and attached or detached accessory apartments by discretionary approval in multiple residential districts, subject to use-specific standards. -
Orono, ME, Code of Ordinances
2015The town’s land use code permits internal, attached, and detached accessory dwelling units by right in all districts that permit single-family dwellings, subject to use specific standards. -
Moscow, ID, City Code
2017The city’s land use code permits internal, attached, and detached accessory dwelling units by right in all residential districts, subject to use-specific standards. -
Santa Fe, NM, City Code
Updated October 2019This regulation belongs to the Accessory Dwelling Units, Green Building, Historic Preservation, Housing Supply Planning, Short-Term Residential Rentals, and Wildland-Urban Interface collections. -
Summit County, CO, Land Use and Development Code
2017These regulations belong to the Accessory Dwelling Units, Food Systems, Housing Supply Planning, Urban Livestock, and Wildland-Urban Interface collections. -
Sandpoint, ID, City Code
Updated December 2018This regulation belongs to the Accessory Dwelling Unit, Housing Supply Planning, and Short-Term Residential Rentals collections. -
San Francisco, CA, ADU
2015by: Openscope Studio ArchitectsThis local guide explains property owner options for developing accessory dwelling units in San Francisco. -
Accessory Dwelling Units: A Guide to Accessory Apartments in Charlottesville, VA
2015This local guide explains property owner options for developing accessory dwelling units in Charlottesville, Virginia. -
Accessory Dwelling Unit Manual
2003This local guide explains property owner options for developing accessory dwelling units in Santa Cruz, California. -
Fayetteville, AR, Code of Ordinances
Updated November 2019This regulation belongs to the Accessory Dwelling Units, Green Stormwater Infrastructure, and Rethinking Off-Street Parking Requirements collections. -
Bloomington, IN, Municipal Code
Updated October 2019This regulation belongs to the Accessory Dwelling Units, Green Building, and Housing Supply Planning collections. -
Home Remedies: Accessory Apartments on Long Island
June 2017by: Elizabeth MooreThis report analyzes local regulations for accessory dwelling units (ADUs) on New York's Long Island. -
A Racial Equity Toolkit on Policies for Accessory Dwelling Units
October 2018by: Susie LevyThis briefing paper uses Seattle's Racial Equity Toolkit model to evaluate the effects of the city's policy approach to accessory dwelling units. -
Backyard Homes and Local Concerns
2014by: Vinit Mukhija, Dana Cuff, Kimberly SerranoThis report analyzes local concerns about accessory dwelling units (ADUs) in Los Angeles and discusses how those concerns may be best addressed. -
Making Big Sense of Small Homes
8 Domains of Livability Case Studies, August 2015This case study profiles efforts in Portland, Oregon, to remove regulatory and financial barriers to accessory dwelling unit (ADU) construction. -
Ocean Springs, MS, Code of Ordinances
Updated June 2019The city's unified development code permits one internal, attached, or detached accessory dwelling unit (ADU) in association with any single-family dwelling. -
2018 Home and Community Preferences: A National Survey of Adults Ages 18-Plus
Updated July 2019by: Joanne BinetteThis report presents the results of a survey of adults, which included a series of questions about accessory dwelling units (ADUs). -
Webinar: Accessory Dwelling Units
June 2018This online training presents an overview of accessory dwelling unit (ADU) policies and practices across the U.S. -
ADUs Help Families Address a Variety of Housing Needs
2019This video highlights the individual and community benefits of accessory dwelling units (ADUs). -
Big House, Little House, Back House...ADU?
PlanningWebcast, March 2018This online training provides a primer on zoning issues related to accessory dwelling units (ADUs). -
Yes, in My Backyard: Building ADUs to Address Homelessness
Homeless Rights Advocacy Project, 12, May 2018by: Tran Dinh, David Brewster, Anna FullertonThis report explores how specific cities and nonprofit organizations have used accessory dwelling units (ADUs) as a housing strategy for individuals experiencing homelessness. -
ADUniverse: Creating a Tool to Support Homeowners Interested in Building an ADU
September 2019by: Rick Mohler, Nick WelchThis website describes an effort to build a tool to help Seattle residents evaluate opportunities to build accessory dwelling units (ADUs). -
Lexington, KY, Homeowner’s Guide to Accessory Dwelling Units
January 2019This guide is designed to help home owner's in Lexington, Kentucky, plan and build accessory dwelling units (ADUs). -
In-Law—and Out-Law—Apartments
Sightline, March 2013by: Alan DurningThis blog post summarizes common barriers to accessory dwelling units (ADUs) and holds up Vancouver, British Columbia, as an example of effective ADU regulatory reform. -
Accessory Dwelling Units in New Hampshire: A Guide for Municipalities
December 2017by: Benjamin Frost, AICPThis guide is designed to help municipalities in New Hampshire develop and implement accessory dwelling unit (ADU) regulations that comply with state law. -
Accessory Dwelling Units: A Flexible Free-Market Housing Solution
R Street Policy Study No. 89, March 2017by: Jonathan CoppageThis briefing paper provides a primer on accessory dwelling units (ADUs) and summarizes common regulatory barriers to ADU development. -
Twin Cities ADU Guidebook for Homeowners
February 2019by: Casey Lauderdale, AICPThis guide is designed to help home owner's in the Twin Cities region of Minnesota plan and build accessory dwelling units (ADUs). -
ADUs and Don'ts
Sightline, March 2013by: Alan DurningThis blog post presents the results of analysis of ADU regulations across Cascadia in the early 2010s. -
Nothing ADU-ing
Sightline, March 2013by: Alan DurningThis blog post examines the prevalence of ADU permitting across Cascadia in the early 2010s. -
Londonderry, NH, Municipal Codes
Updated August 2019The town's zoning code permits one internal, attached, or detached accessory dwelling unit (ADU) by right on any lot with an owner-occupied single-family home. -
Seattle Says Yes to the Best Rules in America for Backyard Cottages
Sightline, July 2019by: Dan Bertolet, Margaret MoralesThis blog post summarizes zoning reforms for accessory dwelling units (ADUs) in Seattle. -
Tacoma Adopts Exemplary Reform for In-Law Apartments
Sightline, March 2019by: Dan Bertolet, Nisma GabobeThis blog post profiles accessory dwelling unit (ADU) regulatory reforms in Tacoma, Washington. -
Could Your Backyard Help Ease the Affordable Housing Crisis?
Sightline, October 2018by: Margaret MoralesThis blog posts discusses how some communities are using accessory dwelling units (ADUs) to increase the supply of income-qualified affordable housing. -
ADU Parking Quotas Are Climate Killers
Sightline, February 2019by: Margaret MoralesThis blog post discusses the most common justifications for removing parking requirements for accessory dwelling units (ADUs). -
LA ADU Story: How a State Law Sent Granny Flats Off the Charts
Sightline, April 2019by: Dan Bertolet, Nisma GabobeThis blog post discusses how a legislative change in California has translated into increased accessory dwelling unit (ADU) production. -
How Backyard Cottages Could Help Close the Affordable Housing Gap
Sightline, August 2018by: Margaret MoralesThis blog post discusses the potential role accessory dwelling units (ADUs) could play in addressing a shortage of affordable housing in Cascadia. -
Impact Fees Are ADU Busters
Sightline, February 2019by: Dan BertoletThis blog post discusses how waiving impact fees can boost accessory dwelling unit (ADU) production. -
Montana Code
Updated September 2022These statutes belong to the Accessory Dwelling Units, Environmentally Sensitive Areas, and Planning and Zoning Enabling Laws collections.