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

Cover CM Credits, Earn Certificates, Push Your Career Forward

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.

June 11, 2025 - Diana Ionescu

Metrorail train pulling into newly opened subterranean station in Washington, D.C. with crowd on platform taking photos.

Congressman Proposes Bill to Rename DC Metro “Trump Train”

The Make Autorail Great Again Act would withhold federal funding to the system until the Washington Metropolitan Area Transit Authority (WMATA), rebrands as the Washington Metropolitan Authority for Greater Access (WMAGA).

June 2, 2025 - The Hill

Large crowd on street in San Francisco, California during Oktoberfest festival.

The Simple Legislative Tool Transforming Vacant Downtowns

In California, Michigan and Georgia, an easy win is bringing dollars — and delight — back to city centers.

June 2, 2025 - Robbie Silver

Color-coded map of labor & delivery departments and losses in United States.

The States Losing Rural Delivery Rooms at an Alarming Pace

In some states, as few as 9% of rural hospitals still deliver babies. As a result, rising pre-term births, no adequate pre-term care and harrowing close calls are a growing reality.

4 hours ago - Maine Morning Star

Street scene in Kathmandu, Nepal with yellow minibuses and other traffic.

The Small South Asian Republic Going all in on EVs

Thanks to one simple policy change less than five years ago, 65% of new cars in this Himalayan country are now electric.

6 hours ago - Fast Company

Bike lane in Washington D.C. protected by low concrete barriers.

DC Backpedals on Bike Lane Protection, Swaps Barriers for Paint

Citing aesthetic concerns, the city is removing the concrete barriers and flexposts that once separated Arizona Avenue cyclists from motor vehicles.

June 15 - The Washington Post