History Made: Oregon Legislature Ends Single-Family Zoning

A bill that seemed like it could be a casualty of a bitter partisan feud managed to squeak under the wire. With Governor Kate Brown's signature, single-family zoning will be prohibited throughout the state of Oregon.

1 minute read

July 1, 2019, 7:00 AM PDT

By James Brasuell @CasualBrasuell


State capital building

JPL Designs / Shutterstock

[Updated: July 1]

Oregon is the first to eliminate single-family zoning, making history this week as the State Senate approved House Bill 2001, which now heads to Governor Kate Brown.

Eliot Njus reports that the bill overcame the drama surrounding the State Senate in recent weeks, and survived a frantic race to approve legislation before the constitutionally mandated end of the legislative session, which would have been a death knell for the bill. The bill notably had support from both sides of the aisle, unlike the climate bill that inspired the Republican walkout the preceded the frantic finish.

Njus provides the following summary of the bill's historic statewide planning reform:

It will allow duplexes, triplexes, fourplexes and “cottage clusters” on land previously reserved for single family houses in cities with more than 25,000 residents, as well as smaller cities in the Portland metro area. Cities with at least 10,000 residents would be required to allow duplexes in single-family zones.

Njus also describes next steps for the implementation of the law, after Governor Kate Brown's expected signature:

Though the bill contains an emergency clause, only elements of the bill intended to prepare for the density mandate would take effect upon its passage. The bulk of the provisions wouldn’t take effect until 2020, with the extra time intended to allow city planners to revise their zoning code.

Sunday, June 30, 2019 in The Oregonian

portrait of professional woman

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban Planner

Get top-rated, practical training

Historic homes in St. Augustine, Florida.

Florida Considers Legalizing ADUs

Current state law allows — but doesn’t require — cities to permit accessory dwelling units in single-family residential neighborhoods.

March 18, 2025 - Newsweek

Aerial view of suburban housing near Las Vegas, Nevada.

HUD Announces Plan to Build Housing on Public Lands

The agency will identify federally owned parcels appropriate for housing development and streamline the regulatory process to lease or transfer land to housing authorities and nonprofit developers.

March 17, 2025 - The Wall Street Journal

Close-up of traffic congestion from behind cars on a freeway in the San Francisco Bay Area.

Conservatives’ Decongestion Pricing Flip-Flop

When it comes to solving traffic problems, the current federal administration is on track for failure, waste, and hypocrisy.

March 17, 2025 - Todd Litman

Close-up on 45 mph speed limit sign with part of Golden Gate Bridge visible in background, San Francisco, California.

San Francisco Turns On California’s First Speed Cameras

The city is the first in the state to use automated traffic enforcement to reduce speeding and traffic deaths.

March 25 - KQED

Downtown Los Angeles skyline viewed from the northwest on a sunny day with scattered clouds.

Shaping LA’s Future: Public Voting Opens for LA2050 Grants

The LA2050 Grants Challenge invites Angelenos to vote on the top issues facing Los Angeles, helping direct $3 million in funding to organizations working to build a more connected and resilient region.

March 25 - MyNewsLA.com

White CTA bus and elevated train against sunset sky in downtown Chicago, Illinois.

Chicago Transit Agencies on Brink of Major Crisis

Without additional funding, regional transit agencies will be forced to cut services by 40 percent.

March 25 - Mass Transit