Seattle Updating Zoning Regulations for Small Single-Family Lots

Planners in Seattle have responded to controversy over the size and scale of development on small lots in many of the city's single-family neighborhoods, with a new set of zoning regulations.

1 minute read

April 4, 2014, 1:00 PM PDT

By James Brasuell @CasualBrasuell


The Seattle Department of Planning and Development has almost completed an update to its zoning code for small single-family lots. Since 2012, the city has operated with an interim ordinance to regulate development of such small-lots.

According to a “Director’s Report” on currently proposed, permanent revisions to the zoning code, the interim ordinance came as a response to “concerns raised by residents in single-family neighborhoods where small lots, previously believed to be unbuildable, were proposed to be developed. The development often resulted in houses that were out of scale with existing neighborhoods and out of proportion to the size of the building site.”

The Department of Planning and Development presented their recommendations to the City Council in March. The proposals generally fall into three categories, according to the Director’s Report: 1) “Modifying and clarifying exceptions to minimum lot area requirements,” 2) “Development Standards for Single Family Homes on Undersized Lots,” and 3) “Minor Code Adjustments and Clarifications.”

The Department of Planning and Development has also produced a document that includes a number of case studies and details of the proposed height regulations and lot sizes and exceptions.

Monday, March 24, 2014 in Seattle Department of Planning and Development

courses user

As someone new to the planning field, Planetizen has been the perfect host guiding me into planning and our complex modern challenges. Corey D, Transportation Planner

As someone new to the planning field, Planetizen has been the perfect host guiding me into planning and our complex modern challenges.

Corey D, Transportation Planner

Ready to give your planning career a boost?

Broken, uneven sidewalk being damaged by large tree roots in Los Angeles, California.

The City of Broken Sidewalks

Can Los Angeles fix 4,000 miles of broken sidewalks before the city hosts the 2028 Olympic Games?

December 5, 2024 - Donald Shoup

Large store in mall with yellow and black STORE CLOSING sign on front.

Shifts in Shopping: Transforming Malls Into Parks

Maybe zombie malls still have a second life — one with a little greenery.

December 8, 2024 - Ruscena Wiederholt

Empty street and high-rise buildings in downtown Chicago, Illinois during COvid-19 pandemic.

Major US Cities Still Suffering Downtown Decline

Research shows that the “donut effect” hollowing out central business districts since the pandemic continues to cause economic decline in the 12 largest American cities.

December 3, 2024 - Stanford University News

Heavy traffic on freeway in San Diego, California.

Why Traffic Never Gets Better

Despite abundant research showing that roadway expansions provide limited congestion relief and increase long-term traffic problems, they still occur due to wishful thinking: advocates claim that “this” project is different.

1 hour ago - Greater Greater Washington

Trolley bus in San Francisco, California.

San Francisco Tops ‘Urban Mobility Readiness’ List

An annual analysis of global cities assesses public transit, technology, and sustainability.

2 hours ago - Bloomberg CityLab

Cyclist on folding bike riding next to silver car on city street.

Bike-Mounted Sensor Could Improve Safety for Cyclists

A new camera technology can detect when vehicles pass too close to people on bikes.

2 hours ago - Streetsblog USA

Urban Design for Planners 1: Software Tools

This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.

Planning for Universal Design

Learn the tools for implementing Universal Design in planning regulations.