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    • Pasadena, CA, Code of Ordinances

      Updated September 13, 2018
      This regulation belongs to the Housing Supply Planning, Inclusionary Housing, and Transit-Oriented Development collections.
    • Anaheim, CA, Municipal Code

      Updated March 2020
      This regulation belongs to the Affordable Housing Programs, Housing Supply Planning, and Solar Energy collections.
    • 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.
    • Lexington-Fayette County, KY, Urban County Government Zoning Code

      December 2023
      Lexington-Fayette County, Kentucky, updated their zoning code for their commercial center zone to increase the supply and mixture of housing types.
    • 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.
    • Memphis and Shelby County, TN, International Residential Code With Local Amendments

      November 2021
      This regulation amends the building code to enable missing middle housing in Memphis and Shelby County, Tennessee.
    • Claremore, OK, Unified Development Code

      December 2021
      Claremore, Oklahoma, adopted a Uniformed Development Code (UDC) to streamline planning efforts and the housing development process.
    • 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.
    • South Bend, IN, Zoning Ordinance

      Updated September 2021
      The city's zoning code, adopted in 2019, is a citywide form-based code. It requires no off-street parking spaces for any land use, permits missing middle housing types, and generally encourages a pedestrian-friendly mixed-use environment.
    • Buffalo, NY, Unified Development Ordinance

      Adopted December 2016
      This regulation belongs to the Form-Based Zoning, Green Stormwater Infrastructure, Housing Supply Planning, Rethinking Off-Street Parking Requirements, and Zoning Reform and Code Writing collections.
    • Santa Monica, CA, Municipal Code

      Updated August 2021
      This regulation belongs to the Active Transportation, Affordable Housing Programs, Housing Supply Planning, Shared Mobility, Short-Term Residential Rentals, and Solar Energy collections.
    • Raleigh, NC, Unified Development Ordinance

      Updated January 2020
      This regulation belongs to the Food Trucks, Green Stormwater Infrastructure, Historic Preservation, Housing Supply Planning, Residential Infill Development, Rethinking Off-Street Parking Requirements, and Zoning Reform and Code Writing 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.
    • Washington, D.C., Zoning Code

      2016
      The district's zoning code addresses inclusionary housing.
    • State College, PA, Municipal Code

      2018
      The borough's zoning code addresses inclusionary housing. An affordability provision of 10 percent applies to all development that creates six or more residential units. Units must remain affordable for 99 years.
    • Baltimore, MD, City Code

      Updated October 2021
      These regulations belong to the Complete Streets, Home Occupations, Housing Supply Planning, Inclusionary Housing, Rethinking Off-Street Parking Requirements, Social Equity, Transit-Oriented Development, Urban Agriculture, and Zoning Reform and Code Writing collections.
    • Newberg, OR, Municipal Code

      Updated September 2020
      This regulation belongs to the Affordable Housing Programs, Grayfields Reuse and Redevelopment, Housing Supply Planning, and Inclusionary Housing collections.
    • Santa Fe County, NM, County Code

      Updated July 13, 2018
      This regulation belongs to the Housing Supply Planning, Inclusionary Housing, and Solar Energy 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.
    • Carlsbad, CA, Municipal Code

      Updated May 2019
      This regulation belongs to the Environmentally Sensitive Areas, Housing Supply Planning, Inclusionary Housing, and Solar Energy 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.
    • Pinellas County, FL, Code of Ordinances

      Updated February 2020
      This regulation belongs to the Affordable Housing Programs, Historic Preservation, Housing Supply Planning, Solar Energy, and Urban Livestock collections.
    • San Francisco, CA, Muncipal Code

      Updated June 2022
      This regulation belongs to the Affordable Housing Programs, Biophilic Planning, Climate Change, Creative Placemaking, Green Building, Housing Supply Planning, Shared Mobility, Short-Term Residential Rentals, Small Wireless Facilities and Wireless Facilities in the ROW, and Solar Energy collections.
    • 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.
    • Provincetown, MA, Zoning By-Laws

      Updated May 2019
      This regulation belongs to the Affordable Housing Programs, Housing Supply Planning, and Solar Energy collections.
    • 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.
    • San Luis Obispo, CA, Municipal Code

      Updated December 2019
      This regulation belongs to the Affordable Housing Programs, Housing Supply Planning, Short-Term Residential Rentals, Solar Energy, and Tiny Houses and Micro-Apartments 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.
    • Cambridge, MA, Zoning Ordinance

      Updated August 2017
      This regulation belongs to the Active Transportation, Housing Supply Planning, Inclusionary Housing, and Innovation Districts 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.
    • Livermore, CA, Development Code

      Updated September 24, 2018
      This regulation belongs to the Form-Based Zoning, Housing Supply Planning, Inclusionary Housing and Solar Energy 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.
    • 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
    • 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.

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