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
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