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

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.

July 16, 2025 - Diana Ionescu

Green vintage Chicago streetcar from the 1940s parked at the Illinois Railroad Museum in 1988.

Chicago’s Ghost Rails

Just beneath the surface of the modern city lie the remnants of its expansive early 20th-century streetcar system.

July 13, 2025 - WTTV

Blue and silver Amtrak train with vibrant green and yellow foliage in background.

Amtrak Cutting Jobs, Funding to High-Speed Rail

The agency plans to cut 10 percent of its workforce and has confirmed it will not fund new high-speed rail projects.

July 14, 2025 - Smart Cities Dive

Worker in yellow safety vest and hard hat looks up at servers in data center.

Ohio Forces Data Centers to Prepay for Power

Utilities are calling on states to hold data center operators responsible for new energy demands to prevent leaving consumers on the hook for their bills.

July 18 - Inside Climate News

Former MARTA CEO Collie Greenwood standing in front of MARTA HQ with blurred MARTA sign visible in background.

MARTA CEO Steps Down Amid Citizenship Concerns

MARTA’s board announced Thursday that its chief, who is from Canada, is resigning due to questions about his immigration status.

July 18 - WABE

Rendering of proposed protected bikeway in Santa Clara, California.

Silicon Valley ‘Bike Superhighway’ Awarded $14M State Grant

A Caltrans grant brings the 10-mile Central Bikeway project connecting Santa Clara and East San Jose closer to fruition.

July 17 - San José Spotlight