Public Policy Commons^™

The Portland Adu Market: Conditions, Costs, Drivers, Incentives, Northwest Economic Research Center, Institute For Sustainable Solutions

Northwest Economic Research Center Publications and Reports

This report was researched and written by the Northwest Economic Research Center of Portland State University (PSU) in collaboration with the Institute for Sustainable Solutions (also at PSU) in order to explore the potential for accessory dwelling units (ADUs) to increase housing affordability in the Portland metropolitan region. Additionally, this report seeks to broadly assess the efficacy of the City’s SDC fee waiver for increasing affordability by increasing the rental housing supply.

In October and November of 2017, ISS conducted an online survey of ADU owners and occupants, the results of which constitute the most exhaustive collection of data regarding …

Accessory Dwelling Units In Portland, Oregon, Matthew Gebhardt, Beth Gilden, Yael Kidron

Institute for Sustainable Solutions Publications and Presentations

The Institute for Sustainable Solutions is spearheading an initiative to make it easier and more affordable for Portland homeowners to construct a second house on their property—increasing housing options in a city with some of the fastest rising rents and lowest vacancy rates in the nation.

Called “accessory dwelling units” or ADUs, these small backyard homes can be used by family members or rented out to others in the community. They provide more affordable housing options while reducing pollutants that cause climate change.

In 2018, Matthew Gebhardt, assistant professor of Urban Studies and Planning, and Yael Kidron, Ph.D. candidate in …