About Missing Middle Housing:
On Optics Design’s website
Legalizing Inexpensive Housing series by Sightline Institute
Missing Middle self-guided walking tour (inner SE Portland including Ladd’s Addition)

Getting to More Missing Middle Housing: 
Character-Compatible, Space-Efficient Housing Options for Single-Dwelling Neighborhoods Report for OR DEQ
Letter of support – state building codes to incentivize preservation & adaptation
Tools for small-scale builders, Congress for the New Urbanism

Government & Academic Reports:
“The New Exclusionary Zoning” by John Mangin, Stanford Law & Policy Review
“Redlining of Our Era: Land Use Voter Initiatives” by Parisa Ijadi-Maghsoodi for Clearinghouse Community
“Housing Development Toolkit” by the Obama White House
“Preserving Housing Choice and Opportunity” by Dr. Lisa Bates, Portland State University
“Sand Castles before the Tide? Affordable Housing in Expensive Cities” by Gabriel Metcalf

Mapping Tools:
Portland’s Home Ownership Affordability – maps by PHC & EcoNW
Housing + Transportation Affordability Index

Land Use, Climate Change & Sustainable Growth:
“More Extensive is More Expensive” report from 1000 Friends of Oregon
Climate Smart Strategy (Metro)
Land Use & Driving (Urban Land Institute)
Cool Planning Handbook (OR TGM program)
“Urban Design to Reduce Automobile Dependence” (Opolis)
“Transit-Supportive Densities and Land Uses” (Puget Sound Regional Council)

Accessibility & Aging in Community: 
Livability Index from AARP
“Expanding Implementation of Universal Design and Visitability Features in the Housing Stock”
“Universal Design: Why Building Accessible Homes is a Solid Real-Estate Investment”
Lifelong Housing Certification Checklist (from the Rogue Valley Council of Government’s Lifelong Housing Certification Project)

The Color of Law: A Forgotten History of How Our Government Segregated America by Richard Rothstein
Walkable City: How Downtown Can Save American Cities, One Step at a Time by Jeff Speck
Zoned in the USA: The Origins and Implications of American Land-Use Regulation by Sonia Hurt
Backdoor Revolution: The Definitive Guide to ADU Development by Kol Peterson
Dead End: Suburban Sprawl and the Rebirth of American Urbanism by Ben Ross
Evicted: Poverty and Profit in the American City by Matthew Desmond
Zoned Out: Regulation, Markets and Choices in Transportation and Metropolitan Land Use by Jonathan Levine
Zoning Rules!: The Economics of Land Use Regulation by William A. Fischel
Heat Wave: A Social Autopsy of Disaster by Eric Klinenberg
Death and Life of Great American Cities by Jane Jacobs
The High Cost of Free Parking by Donald Shoup