Examining Philadelphia’s Zoning Overlay Districts

A decades-old policy allowing hyperlocal zoning exemptions and restrictions creates a confusing patchwork of zoning regulations across the city.

1 minute read

May 4, 2023, 6:00 AM PDT

By Diana Ionescu @aworkoffiction


A proposed overlay district in Philadelphia would ban roof decks and new construction taller than adjacent structures, prompting Jake Blumgart, writing in the Philadelphia Inquirer, to question the policy that allows City Council members to “create carve outs within the city’s overall zoning code to appease constituents, punish enemies, and implement hyperlocal priorities.”

Blumgart explains the history of zoning overlay districts, which operate within Philadelphia’s citywide zoning codes to “create a hyperlocal set of rules for a specific corner of the city, giving every City Council district its own idiosyncratic take on zoning rules.” The article describes several existing Philadelphia overlay districts, which in some cases exclude student housing or require extra steps for new business permits.

Critics say the complicated overlays discourage newcomers and entrepreneurs with lower access to capital. As Blumgart explains, “The rules are only navigable with a zoning attorney, and connections with local officials and neighborhood groups gives the advantage to monied, or politically connected, business owners.” However, overlay districts have also created opportunities for some council members to implement affordable housing requirements in their districts. “For politicians like the Council president, the overlays are a means to address fears of neighborhood change and fight back against aspects of the new zoning code he does not like.”

Wednesday, May 3, 2023 in Philadelphia Inquirer

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