Penn Announced $520 Million Laboratory Redevelopment
The University of Pennsylvania will replace outdated lab space with a modern seven-story facility by 2031.
Updated on Sept. 26, 2026 in Home Renovation
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The University of Pennsylvania has unveiled a $520 million project to replace the 1954 David Rittenhouse Laboratory with a new 325,000-square-foot facility. Known as Penn Discovery Commons, the building aims to modernize campus infrastructure for research and teaching.
Why it matters
University officials deemed the current laboratory building outmoded and unfit for modern scientific requirements, particularly due to the lack of central air-conditioning. This project represents the largest construction effort currently in the university pipeline.
The new facility provides a 15% increase in research space and a 57% increase in classroom capacity. The project will cost $1,600 per square foot.
The players
University of Pennsylvania
A private Ivy League research university that manages a massive urban campus in Philadelphia.
The details
The project involves demolishing two-thirds of the current structure, specifically the 1954 redbrick portion of the David Rittenhouse Laboratory. The 1967 concrete addition to the building will be preserved as part of the new seven-story development. By building new rather than renovating, the university is addressing outdated mechanical systems, including the lack of central air-conditioning, that made existing spaces unfit for research.
Timeline
The original core of the David Rittenhouse Laboratory was constructed in 1954.
A concrete addition was added to the laboratory building in 1967.
The university plans to begin relocating current tenants at the end of 2027.
Demolition of the old structure is scheduled to begin in the spring of 2028.
The project is expected to reach completion by September 1, 2031.
The Home Front
This project continues a trend of massive infrastructure investment by large local institutions to modernize aging mid-century scientific facilities. It reflects the rising costs of higher-education construction and the strategic shift toward purpose-built lab spaces over expensive renovations.
Residents living near 209 S. 33rd St. should expect increased construction activity and equipment staging in the area starting in 2028. Homeowners in the surrounding neighborhoods may track the project timeline to anticipate long-term shifts in campus density and local infrastructure.
The takeaway
The replacement of this 1954 laboratory underscores the limitations of retrofitting mid-century buildings for modern air-handling and research standards. Keep this timeline in mind if you are monitoring neighborhood development impacts through 2031.
What happens next
Tenants of the David Rittenhouse Laboratory should prepare for relocation efforts beginning at the end of 2027, followed by structural demolition scheduled for the spring of 2028.
Further reading
Learn more about local property upgrades at Home Renovation.
Source note: This article includes information reported by The Philadelphia Inquirer.
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