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    • Charlottesville, VA, Code of Ordinances

      Updated April 2018
      This regulation belongs to the Accessory Dwelling Units, Active Transportation, Housing Supply Planning, and Short-Term Residential Rentals collections.
    • Mesa, AZ, Code of Ordinances

      Updated May 2021
      These regulations belong to the Accessory Dwelling Units, Design Review, Group Housing, and Housing Supply Planning collections.
    • Apple Valley, MN, Code of Ordinances

      Updated May 2022
      This city’s code of ordinances allows for accessory unit dwellings in one residential district type with a conditional use permit.
    • Hailey, ID, Municipal Code

      Updated October 2022
      This regulation belongs to the Accessory Dwelling Units, Green Building, Housing Supply Planning, Outdoor Lighting, Solar Energy, Tiny Homes and Micro Apartments, and Urban Livestock collections.
    • Boise, ID, City Code

      Adopted November 2011
      This regulation belongs to the Accessory Dwelling Units, Food Trucks, Green Building, and Small Wireless Facilities and Wireless Facilities in the ROW collections.
    • Sparks, NV, Code of Ordinances

      Updated July 2021
      These regulations belong to the Accessory Dwelling Units, Content-Neutral Sign Regulation, Housing Supply Planning, Solar Energy, Urban Agriculture, and Zoning Reform and Code Writing collections.
    • Olympia, WA, Municipal Code

      Updated February 2023
      This regulation belongs to the Accessory Dwelling Units, Grayfields Reuse and Redevelopment, and Tree Preservation and the Urban Forest collections.
    • Chapel Hill, NC, Code of Ordinances

      Updated October 2019
      This regulation belongs to the Accessory Dwelling Units, Green Building, Housing Supply Planning, Inclusionary Housing, Residential Infill Development, Solar Energy, and Tree Preservation and Urban Forestry collections.
    • Auburn, AL, Zoning Ordinance

      Updated October 2022
      The city’s zoning code permits internal, attached, and detached accessory dwelling units (ADUs) by right in multiple residential districts, subject to use-specific standards.
    • Forsyth County, GA, Code of Ordinances

      2016
      The county’s unified development code belongs in the Accessory Dwelling Units, Housing Supply Planning, and Tree Preservation and the Urban Forest 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.
    • Portland, OR, City Code

      Updated June 2022
      This regulation belongs to 18 Research KnowledgeBase collections.
    • 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.
    • 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.
    • 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.
    • Sandpoint, ID, City Code

      Updated December 2018
      This regulation belongs to the Accessory Dwelling Unit, Housing Supply Planning, and Short-Term Residential Rentals collections.
    • Santa Fe, NM, City Code

      Updated October 2019
      This regulation belongs to the Accessory Dwelling Units, Green Building, Historic Preservation, Housing Supply Planning, Short-Term Residential Rentals, and Wildland-Urban Interface collections.
    • Bozeman, MT, Code of Ordinances

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

      Updated May 2022
      This regulation belongs to the Accessory Dwelling Units, Biophilic Planning, Green Building, Housing Supply Planning, Outdoor Lighting, Shared Mobility, and Wildland-Urban Interface collections.
    • Bloomington, IN, Municipal Code

      Updated October 2019
      This regulation belongs to the Accessory Dwelling Units, Green Building, and Housing Supply Planning collections.
    • Hartford, CT, Zoning Regulations

      Updated June 2020
      These regulations belong to the Accessory Dwelling Units, Food Systems, Form-Based Zoning, Housing Supply Planning, Tiny Houses and Micro-Apartments, Transit-Oriented Development, Urban Agriculture, and Zoning Reform and Code Writing collections.
    • Bloomington, MN, Code of Ordinances

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

      Updated August 2019
      by: City of Knoxville
      These regulations belong to the Accessory Dwelling Units, Downtown Revitalization, Housing Supply Planning, Residential Infill Development, and Solar Energy collections.
    • Iowa City, IA, City Code

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

      Updated September 2019
      This collection belongs to the Accessory Dwelling Units, Green Building, Housing Supply Planning, and Inclusionary Housing collections.
    • 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.
    • 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.
    • Fort Lauderdale, FL, Code of Ordinances

      Updated January 2023
      This regulation belongs to the Accessory Dwelling Units, Rethinking Off-Street Parking Requirements, Tactical Urbanism, and Urban Agriculture collections.
    • Greensboro, NC, Land Development Ordinance

      2017
      The city’s land development code belongs to the Accessory Dwelling Units, Housing Supply Planning, and Scenic View Protection collections.
    • 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.
    • 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
    • Durango, CO, Code of Ordinances

      Updated April 2019
      These regulations belong to the Accessory Dwelling Units, Marijuana-Related Uses, and Scenic View Protection collections.
    • Decatur, GA, Code of Ordinances

      Updated December 2020
      These regulations belong to the Accessory Dwelling Units, Food Systems, Housing Supply Planning, Tree Preservation and the Urban Forest, Urban Agriculture, and Zoning Reform and Code Writing collections.
    • Fayetteville, AR, Code of Ordinances

      Updated November 2019
      This regulation belongs to the Accessory Dwelling Units, Green Stormwater Infrastructure, and Rethinking Off-Street Parking Requirements collections.
    • Rapid City, SD, Code of Ordinances

      Updated December 2019
      These regulations belong to the Accessory Dwelling Units, Housing Supply Planning, Small Wireless Facilities and Wireless Facilities in the ROW, and Wind Energy collections.
    • Eugene, OR, Municipal Code

      Updated May 2019
      This regulation belongs to the Accessory Dwelling Units, Active Transportation, Housing Supply Planning, Residential Infill Development, Rethinking Off-Street Parking Requirements, and Solar Energy collections.
    • Beaufort, SC, The Beaufort Code

      Updated July 2018
      These regulations belong to the Accessory Dwelling Units, Form-Based Zoning, and Housing Supply Planning collections.
    • Lincoln, NE, Municipal Code

      Updated January 2020
      These regulations belong to the Accessory Dwelling Units, Housing Supply Planning, 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
    • 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.
    • 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.
    • 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, Biophilic Planning, Green Stormwater Infrastructure, and Housing Supply Planning collections.
    • Walla Walla, WA, Municipal Code

      Updated June 2021
      These regulations belong to the Accessory Dwelling Units, Housing Supply Planning, Residential Infill Development, and Zoning Reform and Code Writing collections.
    • Amherst, MA, Zoning Bylaw

      Updated June 2022
      This town’s zoning bylaws permits contained, attached, and detached accessory dwelling units in certain residential districts.
    • Hudson, OH, Code of Ordinances

      Updated January 2023
      This city’s code allows for one accessory dwelling unit on a lot with a single-family dwelling.
    • Murray City, UT, Code of Ordinances

      Updated February 2023
      This city’s code permits attached and detached accessory dwelling units in any zone that allows for single family residences.
    • Burlington, VT, Code of Ordinances

      Updated September 2021
      These regulations belong to the 13 collections, ranging from Accessory Dwelling Units to Zoning Reform collections.

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