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    • Greensboro, NC, Land Development Ordinance

      2017
      The city’s land development code permits internal, attached, and detached accessory dwelling units by right in in all residential districts, subject to use-specific standards.
      Greensboro, NC
    • Auburn, AL, Zoning Ordinance

      2017
      The city’s zoning code addresses accessory dwelling units (ADUs) and student housing.
      Auburn, AL
    • Auburn, WA, Municipal Code

      2017
      The city’s zoning code permits internal, attached, and detached accessory dwelling units by right in all districts that permit single-family homes, subject to use-specific standards.
      Auburn, WA
    • Clallam County, WA, County Code

      2017
      The 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.
      Clallam County, WA
    • Forsyth County, GA, Code of Ordinances

      2016
      The county’s unified development code permits accessory apartments and promotes urban forestry.
      Forsyth County, GA
    • Lexington, MA, Town Bylaws

      2016
      The 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.
      Lexington town, MA
    • Palmer, AK, City Code

      2016
      The 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.
      Palmer, AK
    • Port Aransas, TX, Code of Ordinances

      2016
      The 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
      Port Aransas, TX
    • Orono, ME, Code of Ordinances

      2015
      The 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.
      Orono town, ME
    • Moscow, ID, City Code

      2017
      The city’s land use code permits internal, attached, and detached accessory dwelling units by right in all residential districts, subject to use-specific standards.
      Moscow, ID
    • Summit County, CO, Land Use and Development Code

      2017
      The county’s land use and development code permits internal, attached, and detached accessory apartments by right in all single-family districts, subject to use-specific standards, and addresses animal keeping.
      Summit County, CO
    • Iowa City, IA, City Code

      Updated July 17, 2018
      This regulation belongs to the Accessory Dwelling Units, Design Review, Environmentally Sensitive Areas, Food Trucks, Inclusionary Housing, and Transfer of Development Rights collections.
    • Santa Clara County, CA, Code of Ordinances

      Updated August 2018
      These regulations belong to the Accessory Dwelling Units, Home Occupations, Scenic View Protection, Solar Energy, and Wildland-Urban Interface collections.
    • Chula Vista, CA, Municipal Code

      Adopted February 2019
      This regulation belongs to the Accessory Dwelling Units and Solar Energy collections.
    • Bentonville, AR, Zoning Code

      Updated March 2018
      This regulation belongs to the Accessory Dwelling Units, Content-Neutral Sign Regulation, Downtown Revitalization, and Solar Energy collections.
    • Eugene, OR, Municipal Code

      Updated May 2019
      This regulation belongs to the Accessory Dwelling Units, Active Transportation, Residential Infill Development, Rethinking Off-Street Parking Requirements, and Solar Energy collections.
    • Sandpoint, ID, City Code

      Updated December 2018
      This regulation belongs to the Accessory Dwelling Unit and Short-Term Residential Rentals collections.
    • Rapid City, SD, Code of Ordinances

      Updated December 2019
      These regulations belong to the Accessory Dwelling Units, Small Wireless Facilities and Wireless Facilities in the ROW and Wind Energy collections.
    • Durango, CO, Code of Ordinances

      Updated April 2019
      These regulations belong to the Accessory Dwelling Units, Marijuana-Related Uses, and Scenic View Protection collections.
    • Lincoln, NE, Municipal Code

      Updated January 2020
      These regulations belong to the Accessory Dwelling Units and Wind Energy collections.
    • Fremont, NE, Code of Ordinances

      Updated October 2019
      The city's zoning code permits one internal, attached, or detached accessory dwelling unit (ADU) by right in suburban and auto-urban residential districts.
    • Cohoes, NY, City Code

      Updated May 2019
      The city's zoning code permits one internal, attached, or detached accessory dwelling unit (ADU) by right in association with any single-family dwelling
    • Beaufort, SC, The Beaufort Code

      Updated July 2018
      These regulations belong to the Accessory Dwelling Units and Form-Based Zoning collections.
    • Ocean Springs, MS, Code of Ordinances

      Updated June 2019
      The city's unified development code permits one internal, attached, or detached accessory dwelling unit (ADU) in association with any single-family dwelling.
    • Knoxville, TN, Code of Ordinances

      Updated August 2019
      by: City of Knoxville
      These regulations belong to the Accessory Dwelling Units, Downtown Revitalization, Residential Infill Development, and Solar Energy collections.
    • Londonderry, NH, Municipal Codes

      Updated August 2019
      The 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.
    • Mandan, ND, Code of Ordinances

      Updated December 2019
      The city's land development code permits internal, attached, and detached accessory dwelling units (ADUs) by right in two residential zoning districts.
    • Washington, DC, Zoning Regulations

      Updated December 2019
      This regulation belongs to the Accessory Dwelling Units and Green Stormwater Infrastructure collections.
    • Bloomington, MN, Code of Ordinances

      Updated December 2019
      This regulation belongs to the Accessory Dwelling Units, Active Transportation, Affordable Housing Programs, Creative Placemaking, and Green Building collections.
    • San Antonio, TX, Code of Ordinances

      Updated October 2020
      These regulations belong to the Accessory Dwelling Units, Age-Friendly Communities, Food Trucks, Grayfields Reuse and Redevelopment, Green Stormwater Infrastructure, Historic Preservation, Home Occupations, Housing an Aging Population, Inclusionary Housing, Scenic View Protection, Solar Energy, and Tree Preservation and Urban Forest collections.
    • Boulder, CO, Revised Code

      Updated April 2019
      This regulation belongs to the Accessory Dwelling Units, Active Transportation, Environmentally Sensitive Areas, Food Trucks, Inclusionary Housing, Marijuana-Related Uses, Rethinking Off-Street Parking Requirements, Social Service Uses, Solar Energy, and Student Housing collections.
    • Charlottesville, VA, Code of Ordinances

      Updated April 2018
      This regulation belongs to the Accessory Dwelling Units, Active Transportation, Short-Term Residential Rentals, Social Service Uses, and Student Housing collections.
    • Lawrence, KS, City Code

      Updated January 2018
      The city’s codified ordinances belong to the Accessory Dwelling Units, Form-Based Zoning, Group Housing, Home Occupations, Social Service Uses, and Student Housing collections.
    • Bozeman, MT, Code of Ordinances

      Updated December 2019
      This regulation belongs to the Accessory Dwelling Units, Green Stormwater Infrastructure, Group Housing, Historic Preservation, Marijuana-Related Uses, and Urban Livestock collections.
    • Chapel Hill, NC, Code of Ordinances

      Updated October 2019
      This regulation belongs to the Accessory Dwelling Units, Green Building, Inclusionary Housing, Residential Infill Development, Solar Energy, Student Housing, and Tree Preservation and Urban Forestry collections.
    • Santa Cruz, CA, Municipal Code

      Updated September 2019
      This collection belongs to the Accessory Dwelling Units, Green Building, and Inclusionary Housing collections.
    • Santa Fe, NM, City Code

      Updated October 2019
      This regulation belongs to the Accessory Dwelling Units, Green Building, Historic Preservation, Short-Term Residential Rentals, and Wildland-Urban Interface collections.
    • Seattle, WA, Municipal Code

      Updated August 2021
      This regulation belongs to 18 different Research KnowledgeBase collections, ranging from Accessory Dwelling Units to Urban Livestock.
    • Walla Walla, WA, Municipal Code

      Updated June 2021
      These regulations belong to the Accessory Dwelling Units and Residential Infill Development collections.
    • Mesa, AZ, Code of Ordinances

      Updated May 2021
      These regulations belong to the Accessory Dwelling Units and Design Review collections.
    • Salt Lake City, UT, City Code

      Updated September 2021
      The city's code belongs to the Accessory Dwelling Units, Active Transportation, Affordable Housing Programs, Food Trucks, Group Housing, Home Occupations, Residential Infill Development, Rethinking Off-Street Parking Requirements, Solar Energy, Transit-Oriented Development, Urban Agriculture, and Urban Livestock collections.
    • Burlington, VT, Code of Ordinances

      Updated September 2021
      These regulations belong to the 12 collections, ranging from Accessory Dwelling Units to Zoning Reform collections.
    • Portland, OR, City Code

      Updated November 2021
      This regulation belongs to 15 Research KnowledgeBase collections.
    • Denver, CO, Zoning Code

      Updated July 2021
      This regulation belongs to the Accessory Dwelling Units, Form-Based Zoning, Group Housing, Short-Term Residential Rentals, Solar Energy, Urban Agriculture, Urban Livestock, Wind Energy, and Zoning Reform and Code Writing collections.
    • Minneapolis, MN, Code of Ordinances

      Updated November 2021
      This regulation belongs to the Accessory Dwelling Units, Active Transportation, Affordable Housing Programs, Built Environment and Health, Food Trucks, Green Building, Group Housing, Residential Infill Development, Rethinking Off-Street Parking Requirements, Shared Mobility, Social Equity, Solar Energy, Urban Agriculture, and Urban Livestock collections.
    • Fort Lauderdale, FL, Code of Ordinances

      Updated October 2021
      This regulation belongs to the Accessory Dwelling Units, Rethinking Off-Street Parking Requirements, Tactical Urbanism, and Urban Agriculture collections.
    • Decatur, GA, Code of Ordinances

      Updated December 2020
      These regulations belong to the Accessory Dwelling Units, Tree Preservation and the Urban Forest, Urban Agriculture, Zoning Reform and Code Writing, and Zoning Variances collections.
    • Sparks, NV, Code of Ordinances

      Updated July 2021
      These regulations belong to the Accessory Dwelling Units, Content-Neutral Sign Regulation, Solar Energy, Urban Agriculture, Zoning Reform and Code Writing, and Zoning Variances collections.
    • Coconino County, AZ, Zoning Ordinance

      Updated December 2019
      This regulation belongs to the Accessory Dwelling Units and Outdoor Lighting collections.
    • Johnson County, KS, Zoning Regulations

      2016
      The county’s zoning code permits internal, attached, and detached accessory dwelling units by right in rural and residential districts, subject to use-specific standards.

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