Inclusionary Zoning: The Good and the Bad

New research shows that affordable housing mandates usually don't raise housing costs, but often fail to benefit benefit the lowest-income families.

1 minute read

June 10, 2016, 11:00 AM PDT

By Elana Eden


San Francisco Construction

Mark Schwettmann / Shutterstock

Research from the National Housing Conference's Center for Housing Policy clarifies the impacts of inclusionary zoning policies, which require developers to include some affordable units in their buildings. Brentin Mock from CityLab summarizes the major findings.

The good: In most cases, inclusionary zoning requirements haven't driven housing costs up. Nor have they slowed housing production. Those findings challenge the argument of some developers who oppose affordable-housing mandates, especially in California.

The bad: Inclusionary zoning policies have largely failed to create affordable housing for the lowest-income households—and most policies aren't designed to target them. That can lead to a lack of support for programs:

After all, if it’s going to be called “inclusionary zoning,” it should include those who are most in need of housing. People actually need to be able to buy into the properties in order to buy in to the policy.

Pittsburgh is considering ways to address this problem, which Washington, D.C. also dealt with recently. San Francisco, New York, Seattle, and more cities throughout the United States have also recently taken up questions around inclusionary zoning.

The research also notes that the success of these policies is influenced by factors that can vary by city and over time, like the strength of an area’s housing market or a policy's compatibility with state law.

Wednesday, June 1, 2016 in CityLab

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

Wastewater pouring out from a pipe.

Alabama: Trump Terminates Settlements for Black Communities Harmed By Raw Sewage

Trump deemed the landmark civil rights agreement “illegal DEI and environmental justice policy.”

April 13, 2025 - Inside Climate News

High-rise apartment buildings in Waikiki, Hawaii with steep green mountains in background.

Study: Maui’s Plan to Convert Vacation Rentals to Long-Term Housing Could Cause Nearly $1 Billion Economic Loss

The plan would reduce visitor accommodation by 25% resulting in 1,900 jobs lost.

April 6, 2025 - Honolulu Civil Beat

Logo for Planetizen Federal Action Tracker with black and white image of U.S. Capitol with water ripple overlay.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

April 10, 2025 - Diana Ionescu

Bronze statue of homeless man (Jesus) with head down and arm outstretched in front of St. Matthew Cathedral in Washington D.C.

Federal Homelessness Agency Places Entire Staff on Leave

The U.S. Interagency Council on Homelessness is the only federal agency dedicated to preventing and ending homelessness.

5 seconds ago - The New York Times

Historic stone structure surrounding natural spring in India with plaques.

Restoring Northern India’s Himalayan ‘Water Temples’

Thousands of centuries-old buildings protect the region’s natural springs and serve as community wells and gathering places.

1 hour ago - Reasons to Be Cheerful

Blue Bublr bikes parked at station on sidewalk in Milwaukee, Wisconsin.

Milwaukee to Double Bike Share Stations

Bublr Bikes, one of the nation’s most successful, will add 500 new e-bikes to its system.

2 hours ago - OnMilwaukee