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645 Summer Street

Eli Lilly And Company Leases 75,000 Square Feet At 645 Summer Street In Boston
LEASEDLife Sciences

Eli Lilly And Company Leases 75,000 Square Feet At 645 Summer Street In Boston

645 Summer Street

Building Size

75,000 SF

Asset Type

Life Sciences

Closing

Oct 20, 2025

AI

The property involved in this transaction is a life sciences asset located at 645 Summer Street in Boston, MA. The total square footage of the building is 75,000, and it serves as a significant expansion for the tenant. The asset is notably positioned to enable advanced research activities in the life sciences sector.

Summary of transaction details:

  • Property Type: Life Sciences
  • Transaction Amount: Not specified
  • Address: 645 Summer Street
  • Market: Boston, MA
  • Landlord: Daniel Fournier - Oxford Properties Group
  • Tenant: David A. Ricks - Eli Lilly and Company

This lease represents a strategic move for Eli Lilly and Company, highlighting their commitment to enhancing research capabilities in Boston. The agreement involves the entirety of the 75,000-square-foot facility, effectively consolidating their research activities and doubling their operational space in the Boston Seaport area. This expansion aligns with their focus on RNA and DNA-based therapies and complements the recent establishment of the Lilly Seaport Innovation Center.

Players

Daniel Fournier

Oxford Properties Group

Landlord

$136M

vol

5 deals

Landlord
Oxford Properties Group
Oxford Properties GroupLandlord

Boston Life Sciences Market Snapshot

Boundary boundary · Life Sciences · Lease transactions

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Purchase Price

Annual NOI

Loan Amount

Interest Rate (%)

Loan Term (yrs)

Down Payment (%)

Cap Rate

5.80%

Cash-on-Cash

-1.66%

Monthly Payment

$14,164

Annual Debt Svc

$169,964

Annual Cash Flow

$-11,334

DSCR

0.93