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Planning and Sustainability

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Residential Infill Project

  • Scale of Houses Should Portland reduce allowances for the size of houses in single-dwelling zones to address community concerns about houses being too large? If so, to what extent?

  • Housing Types What is the feasibility and appropriateness of more duplexes, triplexes and accessory dwelling units (ADUs) to provide more housing options in single-dwelling zones?

  • Historically Narrow Lots What are appropriate lot dimensions for new development on historically narrow lots? Where should these lots be allowed and how can they be better designed?

Portland is growing and our housing needs are changing. Nearly 123,000 new households are projected by 2035. About 20 percent of new housing units will be built in Portland’s single-dwelling residential zones. Increased cultural and racial diversity and an aging population will also affect housing needs. The average number of people per household is getting smaller and households with children are expected to decline to 25 percent over the next 20 years. Portlanders have expressed concerns about the size of new houses, demolitions and the rising cost and lack of housing choices throughout the city. In response, the Bureau of Planning and Sustainability is taking a fresh look at the allowances for development in single-dwelling neighborhoods. See the project summary and timeline for more information.

News and Updates View all »

  1. Oct 18

    Residential Infill Project Concept Report now available; City Council public hearings scheduled for November 9 and 16

    Proposals will reduce the scale of houses and help create more housing choices in Portland's single-dwelling neighborhoods

  2. Sep 21

    Residential Infill Project online questionnaire and open houses yielded 1,400 comments about proposed rules for new development in single-dwelling zones

    See what Portlanders said about the RIP draft proposals and learn about next steps for the project as it makes its way to City Council

  3. Aug 24

    First public feedback phase for Residential Infill Project comes to a close; 1,400 comments received

    Council to review recommendations for new regulations shaped by community input

  4. Aug 9

    Residential Infill Project questionnaire closes on August 15

    Share your feedback on proposals that address the scale of houses, housing types and historically narrow lots in residential neighborhoods

  5. Jun 20

    Residential Infill Project open houses begin; share draft proposals for new houses and additions in single-dwelling zones

    Online open house and questionnaire offer community members another way to learn about the project and give feedback on proposals that address the scale of new houses, housing options and historically narrow lots.