February 07, 2025

2300 Market Nears Completion

2300 Market is a singular new building that spans a century. The 8-story, 225,000-square-foot life science research and discovery building is targeting LEED Gold certification and is scheduled for completion in March 2025.

Located within the last remnants of the historic industrial fabric of Center City Philadelphia's West Market corridor, the project embraces adaptive reuse and rehabilitation of an existing brick loft building and reconstruction of an adjoining building's terra cotta facade.  
 
Developed by Breakthrough Properties and backed by a joint venture of Tishman Speyer and Bellco Capital, 2300 Market reflects a collaborative and rigorous civic engagement process, a model in which the developer, design team, and local stakeholders worked together to transform historic structures into civic and economic assets for the future. 

The existing buildings, originally built for the Autocar and Locomobile companies, are complemented by a high-performance vertical addition to accommodate state-of-the-art laboratory spaces, plus amenities including a cafe, lounge, fitness center, and elevated terraces.

2300 Market artfully weaves together three buildings with three facade types: existing brick loft at the corner of 23rd and Market, reconstruction of an historic terra cotta facade mid-block, and new overbuild clad with unitized curtainwall.

The original terracotta facade was removed in pieces, labeled, and restored before being returned to the site for reinstallation.

KT staff Karen Vankovich and Steven Johns observing the terra cotta facade reinstallation. 

The inflected form of the new overbuild was established in dialog with the existing facades, weaving the historic Philadelphia streetscape with innovative and high performing design.

The central business district is just to the east of the site, merging the commerce of downtown with the academic resources of University City.

Strategically located between University City and Center City, 2300 Market will provide its tenants with convenient proximity to 30th Street Station, world-class research institutions, and a bustling commercial district.

Principal Jon McCandlish and Associate Ryan Wall recently presented an in-depth overview of 2300 Market through the Design Advocacy Group. A recording of their talk is available below.