Sunday, 8 November 2026

New interactive map reveals modernist buildings in Philadelphia.

Discover the captivating historical buildings of Philadelphia, where colonial and Victorian architecture takes center stage. Explore a groundbreaking project by researchers at Thomas Jefferson University that sheds new light on the city’s rich architectural heritage.

New interactive map reveals modernist buildings in Philadelphia.

In an effort to illuminate the architectural heritage of Philadelphia, researchers at Thomas Jefferson University have undertaken an ambitious project to highlight the city’s collection of modernist buildings. Often overshadowed by more widely recognized colonial and Victorian structures, these midcentury modernist sites are gaining attention through an interactive online map developed by the university’s Center for the Preservation of Modernism.

The map features approximately 500 midcentury modern buildings, notably including prominent structures such as the Municipal Services Building located at 1401 John F. Kennedy Boulevard, Three Penn Center, and the Roundhouse—deemed one of Philadelphia’s most iconic yet controversial modernist designs. The project aims to raise awareness of various types of modernist architecture, encompassing residential buildings, hotels, educational institutions, houses of worship, libraries, and fire stations. Researchers are poised to add more than 180 additional sites by early November, enhancing the comprehensive nature of this educational resource.

Suzanne Singletary, the director of the Center for the Preservation of Modernism, emphasizes the significance of modernist architecture, asserting that it plays a crucial role in shaping Philadelphia’s architectural identity alongside traditional styles. Singletary points out that many modernist buildings have traditionally been overlooked, and this mapping initiative seeks to rectify that by showcasing their importance and unique contributions to the urban landscape.

Midcentury modern architecture is characterized by its clean lines, lack of ornamentation, and extensive use of materials such as metal, glass, and stone. This architecture typically features expansive walls of windows and interconnected interior spaces, merging functionality with aesthetic appeal. Kevin King, a graduate student involved in the project, notes that these buildings represent a departure from historical European architectural styles and deserve recognition and preservation.

The modernism map was launched after five years of meticulous effort, following a midcentury modern inventory previously compiled by the Preservation Alliance. That inventory originated in response to the demolition of notable modernist structures, including the Sidney Hillman Medical Center, urging advocates to safeguard the architectural legacy of Philadelphia.

Local organizations have collaborated closely on the map, including the Preservation Alliance and the Philadelphia chapter of Docomomo US, both of which champion the cause of modernist architecture. These partnerships have facilitated a thorough collection of historical information and photographs that enhance the map’s utility.

Users of the interactive map can explore the city’s modernist sites by clicking on different locations, with features allowing searches by architect or building name. This valuable resource aims to assist preservationists, students, and local residents eager to delve deeper into the architectural narrative of Philadelphia.

As Singletary observes, modernism remains one of Philadelphia’s least understood styles. The preservation of these structures is vital, as neglect could lead to their premature demolition. To bolster the map, the Center for the Preservation of Modernism invites the public to suggest additional modernist buildings, ensuring a more inclusive and expansive representation of this important architectural chapter in Philadelphia’s history.