The city didn’t have tall buildings until the 1980s. Then its skyline took off.

Julia Terruso explores the evolution of the Philadelphia skyline, beginning with the 196-foot Christ Church. “The church, which dates to 1744, was the tallest structure in North America for 56 years. It is still considered one of the finest Georgian buildings in America,” she notes.
City Hall was completed in 1901, and it was the tallest building in Philadelphia, at 548 feet, until One Liberty Place went up in 1987. “The building, blue glass and steel, with a top that resembled the Chrysler Building in New York City, would rise almost twice the height of City Hall and put Philadelphia on course for a building boom in the early 1990s,” says Terruso.
Former chief city planner Barbara Kaplan says Philadelphia transformed from a city with no skyline to one with a dozen skyscrapers in a short period of time. This development growth also happened later than in most other cities.
The tallest building in the city currently is the 974-foot Comcast Center, which was completed in 2008. But next year, the Comcast Technology Center will take that title. At 1,121 feet, it will be the ninth tallest building in the country.
“The Comcast Technology Center is 147 feet taller than its neighbor, due mostly to its narrow spire of three long rectangles, the middle one the highest. Some Philadelphians have said it resembles a middle finger,” reports Terruso.
FULL STORY: Philadelphia’s skyline rising: From a colonial church spire to glassy blue Comcast 2

Manufactured Crisis: Losing the Nation’s Largest Source of Unsubsidized Affordable Housing
Manufactured housing communities have long been an affordable housing option for millions of people living in the U.S., but that affordability is disappearing rapidly. How did we get here?

Americans May Be Stuck — But Why?
Americans are moving a lot less than they once did, and that is a problem. While Yoni Applebaum, in his highly-publicized article Stuck, gets the reasons badly wrong, it's still important to ask: why are we moving so much less than before?

Using Old Oil and Gas Wells for Green Energy Storage
Penn State researchers have found that repurposing abandoned oil and gas wells for geothermal-assisted compressed-air energy storage can boost efficiency, reduce environmental risks, and support clean energy and job transitions.

Poorest NYC Neighborhoods Pay Price for Delivery Boom
The rise of ‘last-mile’ e-commerce warehouses — and their attendant truck traffic and air pollution — is disproportionately impacting the most historically disadvantaged parts of the city.

Greening Oakland’s School Grounds
With help from community partners like the Trust for Public Land, Oakland Unified School District is turning barren, asphalt-covered schoolyards into vibrant, green spaces that support outdoor learning, play, and student well-being.

California Governor Suspends CEQA Reviews for Utilities in Fire Areas
Utility restoration efforts in areas affected by the January wildfires in Los Angeles will be exempt from environmental regulations to speed up the rebuilding of essential infrastructure.
Urban Design for Planners 1: Software Tools
This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.
Planning for Universal Design
Learn the tools for implementing Universal Design in planning regulations.
Heyer Gruel & Associates PA
City of Moreno Valley
Institute for Housing and Urban Development Studies (IHS)
City of Grandview
Harvard GSD Executive Education
Salt Lake City
NYU Wagner Graduate School of Public Service
City of Cambridge, Maryland