300 George Street

New Haven, CT

Property Highlights
Property Type

Medical/Lifestyle Icon Life Science & Medical Office

Contact Information

Demian Gage
Chief Financial Officer


Office / Labratory


518,940 SF


Leased to Yale University and Yale New Haven Hospital

Lot Size

2.4 Acres

Property Description

300 George Street was built as a call-center by Southern New England Telephone Company in 1959.  In the 1990’s AT&T acquired SNET and relocated its employees, leaving the building vacant. In 2000, Winstanley acquired the 25% leased property, which was strategically located across from the Yale School of Medicine.

Winstanley immediately commenced a comprehensive environmental remediation and base building redevelopment initiative to enable the building to support Yale University’s research and the City’s growing life sciences industry. This included designing and investing in the infrastructure to vertically distribute these services to the tenants and monitor their consumption and use. The building’s efficient design and imbedded systems offer lab tenants lower upfront build-out costs and lower on-going occupancy costs.

The property has been fully leased since 2005 to Yale University, Yale New Haven Hospital and a variety of publicly traded and venture-backed biotechnology companies. The area around Yale New Haven Hospital and the Yale University School of Medicine is home to numerous biotech companies and non-profit research organizations. 300 George Street has allowed the majority of this spin-off economic development to remain in New Haven, and has played an integral role in the City’s growing biotechnology sector.


300 George Street
New Haven, CT 06511
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Additional Information
Year Built


Year Renovated