Missing Middle Housing

Wide apartment building staircase with curved wrought iron handrail.

Study: Single-Staircase Buildings Pose No Additional Risks

Zoning codes have long prohibited single-stair residential buildings due to safety concerns, but changing that could lower the cost of construction and allow for more flexible housing designs.

March 5, 2025 - CNU Public Square

Brightly colored pale blue, dark blue, and coral row houses in Baltimore, Maryland.

The Key Role of Row Houses in Philadelphia and Baltimore

The row house is ubiquitous in the two cities, but their policies on design and preservation vary widely.

February 2, 2025 - North Penn Now

Ornate Victorian San Francisco houses with modern high-rises in background.

Commentary: A New ‘Grand Bargain’ for American Housing

For decades, many U,S, neighborhoods successfully resisted change at the expense of a few neighborhoods sacrificed to mass development. Is there a better way?

January 29, 2025 - Strong Towns

For Lease painted on window of vacant commercial space.

2024: The Year in Zoning

Cities and states are leaning on zoning reform to help stem the housing crisis and create more affordable, livable neighborhoods.

January 8, 2025 - Diana Ionescu

Hillside homes in Berkeley, California.

Berkeley Launches ADU Amnesty Program

Owners of unpermitted accessory dwelling units can bring their units up to code and obtain certificates of compliance without facing penalties.

January 6, 2025 - San Francisco Chronicle

Anchorage, Alaska skyline with snowy mountains in background.

Anchorage Leaders Support Multigenerational Housing Model

The city is making it easier to build multigenerational housing that can accommodate families, children, and seniors who want to ‘age in place.’

December 27, 2024 - Alaska Public Media

Large homes with large yards in suburban cul-de-sac near Atlanta, Georgia.

Commentary: Minimum Lot Sizes Drive Up Housing Costs

How making residential building requirements more flexible can ease the housing crisis and make neighborhoods more livable for more households.

December 11, 2024 - Strong Towns

Rendering of modern black and brown one-story backyard home design

The ADU Movement Grows Around the Country

More states and cities are promoting backyard cottages, converted garages, and other add-on units. Are they making an impact?

November 26, 2024 - Yahoo News

Aerial view of Arlington County, Virginia from an airplane.

Court Blocks Arlington County Zoning Reform

The county’s zoning reform plan would have promoted ‘missing middle housing’ types of up to six units on lots previously zoned for single-family housing.

October 1, 2024 - Reason

Multistory apartment building under construction with yellow crane.

Experts Say Zoning Reform Isn’t Likely to Solve Housing Crisis

A survey by Fannie Mae found widespread skepticism among housing experts that zoning reforms will be enacted widely enough to make a major impact on U.S. housing supply.

September 11, 2024 - Housing Wire

Collage of six backyard cottages/ADUs in Cincinnati, Ohio.

Cincinnati ADU Legalization Slow to Catch On

Only four permits have been filed since the city made ‘granny flats’ legal last year.

July 16, 2024 - Cincinnati Enquirer

Sketches of front facades of houses laid out in a grid, six rows by four columns.

Top 10 Tips for Cities Considering Pre-Approved Housing Plans

Pre-approved housing plans aren't just for small single-family homes, duplexes, and townhouses. In fact, they can play a key role in spurring the delivery of missing middle housing at a variety of sizes and price points.

July 11, 2024 - Dan Parolek

Small New York City street with brownstone homes and cars parked on one side.

NYC ‘City of Yes’ Seeks to Scale Back Parking Requirements

A rise in permit applications after recent changes to parking requirements shows how parking mandates stifle new residential development and raise the cost of housing.

July 5, 2024 - StreetsBlog NYC

Two wood-frame houses under construction.

Commentary: When Neighborhood Change is Inevitable

Changes in the size and type of housing can accommodate different living arrangements and offer opportunities for multigenerational living and aging in place.

June 24, 2024 - Strong Towns

An aerial view of the South Side of Chicago, with Lake Michigan to the left in the distance.

The Nation’s Most Pro-YIMBY Cities

The District of Columbia and Chicago have some of the most housing-friendly policies in the nation, according to a new report.

June 16, 2024 - yahoo! Finance

Maricopa County, Arizona

Arizona Legalizes ADUs and Higher Downtown Density Statewide

Two new laws require cities to permit ‘missing middle housing’ near city centers and ADUs on all single-family lots.

May 28, 2024 - The Real Deal

Blue and red colonial-style multifamily homes in Vermont.

Vermont Issues Missing Middle Housing Toolkit

The state wants to encourage mid-density development to ease the housing crisis and provide a wider variety of housing options for residents.

May 24, 2024 - Congress For New Urbanism

SMall backyard cottage ADU in San Diego, California.

How ADUs Can Help Ease the Affordable Housing Crisis

Local policies and programs can encourage homeowner participation and increase the number of ADUs available as low-cost rentals.

May 3, 2024 - Brookings

Single-family homes in a suburb of Dallas, Texas

Texas Law Could Limit Local Control Over Zoning

If upheld, a Texas law would likely prevent cities from enacting zoning reform that would increase density or eliminate single-family-only zoning.

April 17, 2024 - D Magazine

View of upper story of row of townhomes.

Can Technology Help Build Better Housing?

Cities need more “missing middle” housing. A new startup aims to help real estate developers build it.

April 8, 2024 - Hugh McFall

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.

Top Books

An annual review of books related to planning.

Top Schools

The definitive ranking of graduate planning programs.

100 Most Influential Urbanists

The who's who of urbanism, according to Planetizen readers.

Urban Planning Creators You Should Know

A short list of voices on social, video, and podcasting platforms.