Philadelphia Passes Long Overdue Zoning Code Reform

The prior code, adopted in 1962 and amended with with nearly 1,000 ad-hoc revisions since then, required a strict separation of uses and outlawed the classic Philadelphia rowhouse typology.

1 minute read

January 26, 2012, 1:00 PM PST

By Jonathan Nettler @nettsj


According to David Morley, writing for the APA Sustaining Places blog, the prior code was also seen as a major barrier to investment. The new code, nearly five years in the making, has been streamlined and is geared towards encouraging sustainability, protecting neighborhoods, and promoting quality and design.

While a successful document in many ways, Morley finds it somewhat odd that zoning reform will be enacted ahead of completion of the city's concurrent comprehensive planning effort: the Philadelphia 2035 Citywide Vision.

"In some ways, the approach of simultaneous plan making and zoning reform sounds ideal. The time for completing both projects is shorter and there were many opportunities for participants to see relationships between planning themes and zoning provisions. In other ways, it seems a little strange. The planning team and the zoning team operated independently, and specific plan policies generally followed the development of specific zoning standards, rather than vice versa."

Wednesday, January 25, 2012 in APA Sustaining Places

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

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 16, 2025 - Diana Ionescu

Blue and white Seattle Link light rail train exiting concrete Downtown Bellevue Tunnel in Bellevue, WA.

Why Should We Subsidize Public Transportation?

Many public transit agencies face financial stress due to rising costs, declining fare revenue, and declining subsidies. Transit advocates must provide a strong business case for increasing public transit funding.

April 7, 2025 - Todd Litman

Two people on bikes in red painted bike lane with bus in traffic lane next to them.

Understanding Road Diets

An explainer from Momentum highlights the advantages of reducing vehicle lanes in favor of more bike, transit, and pedestrian infrastructure.

April 17 - Momentum Magazine

Aerial view of large warehouses across from development of suburban single-family homes in Jurupa, California with desert mountains in background.

New California Law Regulates Warehouse Pollution

A new law tightens building and emissions regulations for large distribution warehouses to mitigate air pollution and traffic in surrounding communities.

April 17 - Black Voice News

Purple Phoenix light rail train connected to overhead wires at sunset.

Phoenix Announces Opening Date for Light Rail Extension

The South Central extension will connect South Phoenix to downtown and other major hubs starting on June 7.

April 17 - Arizona Republic