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Planning and Sustainability

Innovation. Collaboration. Practical Solutions.

Phone: 503-823-7700

Curbside Hotline: 503-823-7202

1900 SW 4th Ave, Suite 7100, Portland, OR 97201

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Morgan Tracy, Project Manager


Julia Gisler, Public Involvement


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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. Dec 13

    With some fine-tuning, City Council approves Residential Infill Project Concept Report

    Staff to begin drafting code and map changes in early 2017

  2. Nov 17

    Hearings wrap up on Residential Infill Project, but written testimony accepted until November 23

    Nearly 120 people testified in person to City Council about proposals that could reduce the scale of new and remodeled houses and help create more housing choices in Portland

  3. Nov 7

    Public hearings on Residential Infill Project Concept Report November 9 & 16

    City Council to hear testimony on new regulations that could reduce the scale of new and remodeled houses and help create more housing choices in Portland.

  4. 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

  5. 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