Alexandria Real Estate Proposed Cambridge Lab Expansion
The developer has filed a zoning petition to expand its Technology Square campus and convert an older lab into housing.
Updated on Sept. 22, 2026 in Commercial
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Alexandria Real Estate Equities has submitted a zoning petition to add 250,000 square feet of lab space to its Technology Square campus in Cambridge. The proposal also includes converting a 40,000 square-foot building at 161 First St. into 31 units of affordable housing.
Why it matters
The developer is positioning itself for anticipated future demand for lab space in East Cambridge, despite current market vacancies. Integrating housing into the campus demonstrates a strategic move to utilize the Cambridge affordable housing overlay.
The Technology Square campus spans 1.2 million square feet across seven buildings, with current asking rents for local lab space averaging $105 per square foot. The 161 First St. building, slated for conversion, was originally developed in 1907 and purchased by Alexandria for $10.6 million in 2005.
The players
Alexandria Real Estate Equities
This real estate investment trust specializes in life science and technology campuses and is headquartered in Pasadena, California.
Ashton Valve Company
This historic firm was the original developer of the 161 First St. property in 1907.
The details
Alexandria submitted a zoning map amendment and transfer of development rights as part of the proposal for the campus expansion. The conversion of the 161 First St. facility into residential units is planned under the city's affordable housing overlay.
Timeline
1907: The 161 First St. building was originally developed by the Ashton Valve Company.
2005: Alexandria Real Estate Equities acquired the property at 161 First St. for $10.6 million.
- 2026-09-22
The Cambridge Planning Board scheduled public hearings regarding the proposal.
- 2026-10-06
The City Council Ordinance Committee scheduled a public hearing on the project.
Roadmap
This development reflects the broader trend of diversifying commercial lab hubs with residential components to navigate shifting market demands in urban environments. The expansion underscores Alexandria's ongoing investment in the Cambridge life science corridor despite broader regional vacancy fluctuations.
Residents may see a change in local housing stock if the 31 affordable units are approved for construction. The expansion project could also alter the local commercial landscape of East Cambridge as the developer adjusts to lab market vacancy rates.
The takeaway
This proposal highlights how developers are increasingly looking to blend residential use with industrial laboratory space to maximize property value. Such projects may offer a path to expanding city housing availability while maintaining a footprint in the local technology sector.
Further reading
For more on local business development, visit the Commercial section.
Source note: This article includes information reported by Banker & Tradesman.
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