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617 Arsenal Street

Boylston Properties Secures $119.5 Million Refinance For Life Sciences Property In Watertown MA
FINANCEDLife Sciences

Boylston Properties Secures $119.5 Million Refinance For Life Sciences Property In Watertown MA

617 Arsenal Street

$119,200,000

$745/SF

Building Size

160,000 SF

Asset Type

Life Sciences

Closing

Aug 18, 2025

AI

The property asset involved in the transaction is a life sciences property located at 617 Arsenal Street, Watertown, MA. It encompasses a total square footage of 160,000 and was refinanced for a total amount of $119,500,000, consisting of $94 million in senior debt and $25.2 million in mezzanine debt.

Summary of transaction details:

  • Property Type: Life Sciences
  • Transaction Amount: $119,500,000
  • Lender: Landesbank Baden-Württemberg (LBBW)
  • Mezzanine Lender: Tishman Speyer
  • Landlord: Mark Deschenes - Boylston Properties
  • Brokers: Brett Paulsrud, Henry Schaffer & Geoff Goldstein - JLL

The refinancing transaction involved key parties including Landesbank Baden-Württemberg and Tishman Speyer, who provided the financing for the property. Mark Deschenes represents Boylston Properties in this transaction, while the brokerage representation is handled by Brett Paulsrud, Henry Schaffer, and Geoff Goldstein from JLL.

Players

Henry Schaffer

JLL

Broker

$1.7B

vol

17 deals

Broker
Landesbank Baden-Württemberg (LBBW)
Landesbank Baden-Württemberg (LBBW)Lender

Mark Deschenes

Boylston Properties

Landlord

$237.2M

vol

3 deals

Landlord

Watertown Life Sciences Market Snapshot

Boundary boundary · Life Sciences · Loan transactions

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Purchase Price

Annual NOI

Loan Amount

Interest Rate (%)

Loan Term (yrs)

Down Payment (%)

Cap Rate

0.13%

Cash-on-Cash

-0.04%

Monthly Payment

$14,164

Annual Debt Svc

$169,964

Annual Cash Flow

$-11,334

DSCR

0.93