Density

Aerial view of residential neighborhood on coast near Honolulu in Kahala, Oahu, Hawaii.

How Hawaii Can Make the Most of its ADU Law

The state recently legalized accessory dwelling units in residential districts, but there’s more state lawmakers can do to reduce other hurdles to large-scale ADU production.

August 15, 2024 - Niskanen Center

Bike parked on urban sidewalk with large street trees.

Sustainable Urban Design: A New Tool and Approach on The Talking Headways Podcast

Discover how the Sustainable Urban Design Framework helps planners create livable, sustainable communities. Nico Larco from the University of Oregon explores a new tool and book in the latest “Talking Headways” podcast.

August 14, 2024 - Streetsblog USA

View of homes nestled among green trees with Columbus, Ohio skyline in background

It’s Unanimous: Columbus Approves Density-Friendly Zoning Changes

Columbus has approved six zoning code amendments, which include height limit increases from three stories to 16 and eliminate parking requirements for large developments in 12,300 parcels along major transportation corridors.

July 31, 2024 - Columbus Dispatch

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

Aerial view of Champs Elysees boulevard in Paris, France.

‘Grand Boulevards’ Could Ease Housing Crisis

A prominent urbanist argues that redeveloping commercial corridors with denser housing could bridge the gap between the housing supply and demand.

June 27, 2024 - Congress For New Urbanism

Small backyard cottage with gabled roof in San Diego, California.

San Diego Sees Continued Growth in ADU Permits

Recent changes to regulations have made it easier and more affordable for homeowners to build ‘granny flats,’ and San Diego’s housing stock is benefiting.

June 20, 2024 - Axios San Diego

Close-up of colorful zoning map of unidentified city.

How Zoning Affects Greenhouse Gas Emissions

As the urgency of the climate crisis increases, a paper in the Notre Dame Law Review argues that increased density is not a universally effective strategy to reduce emissions and that different strategies are needed for low-carbon places versus high-carbon ones.

June 6, 2024 - Nate Luce

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

A spraling subdivision of single-family detached housing in a desert setting.

A Comic Book About Housing

In ‘Build, Baby, Build,’ economist Bryan Caplan makes the case for zoning deregulation in a graphic novel format.

May 22, 2024 - Michael Lewyn

Texas Townhomes

Austin Reduces Minimum Lot Size

Smaller lot sizes for single-family homes can make construction more affordable and homeownership available to more households.

May 21, 2024 - The Texas Tribune

Aerial view of homes in Milwaukee, Wisconsin with brick university buildings in distance.

A Look at Milwaukee’s Proposed Zoning Reform

The proposed changes would permit more flexible housing development while limiting changes in historic neighborhoods and on smaller streets.

May 10, 2024 - Urban Milwaukee

Aerial view of Columbus, Ohio skyline with river in foreground

Columbus Zoning Reform Proposal Garners Varied Responses

Proponents of a new zoning designation say it will ease the housing crisis, while other residents worry about density, historic resources, and property taxes.

May 9, 2024 - Columbus Dispatch

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

Aerial view of Riverside, California with ornate Catholic church tower in foreground and mountains in the distance.

Faith-Based Housing Brings Light Density With Less Resistance

The ‘Yes in God’s Backyard’ movement brings together powerful partners to develop housing in areas where development might otherwise encounter opposition.

May 2, 2024 - The New York Times

Colorado State Capitol Building

Colorado Bill Would Tie Transportation Funding to TOD

The proposed law would require cities to meet certain housing targets near transit or risk losing access to a key state highway fund.

April 25, 2024 - Colorado Public Radio

Sunset view of downtown Minneapolis, Minnesota skyline.

Minneapolis as a Model for Housing Affordability

Through a combination of policies, the city has managed to limit the severity of the nationwide housing crisis.

April 24, 2024 - Brown Political Review

Aerial view of Barcelona, Spain with Sagrada Familia church in middle among dense buildings.

How Urban Form Impacts Housing Affordability

The way we design cities affects housing costs differently than you might think.

April 18, 2024 - The Conversation

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

Aerial view of Maine harbor town with fall colors on trees.

Maine Law Promotes Smart Growth

New state legislation encourages cities to plan around ‘smart growth’ principles to preserve farmland and open space, and use infill development to build more housing.

April 17, 2024 - Maine Public

Street scene in Greenwich Village, New York City with people walking through busy intersection and new WTC tower in background.

Planning for Accessibility: Proximity is More Important than Mobility

Accessibility-based planning minimizes the distance that people must travel to reach desired services and activities. Measured this way, increased density can provide more total benefits than increased speeds.

April 14, 2024 - Todd Litman

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.