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619 West 54th Street

Len O’Donnell Of Affinius Capital Acquires Life Sciences Asset In Hell’s Kitchen For $191.7M
SOLDLife Sciences

Len O’Donnell Of Affinius Capital Acquires Life Sciences Asset In Hell’s Kitchen For $191.7M

619 West 54th Street

$191,700,000

$598/SF

Building Size

320,116 SF

Asset Type

Life Sciences

Closing

Dec 24, 2025

AI

The property involved in this transaction is the Hudson Research Center located at 619 West 54th Street in Hell’s Kitchen, Manhattan. The asset is categorized as Life Sciences and encompasses a total area of 320,116 square feet. The sale price for this property was $191,700,000, which translates to a price per square foot of $599.

Summary of transaction details:

  • Property Type: Life Sciences
  • Transaction Amount: $191,700,000
  • Address: 619 West 54th Street
  • Market: Hell’s Kitchen, Manhattan
  • Square Footage: 320,116
  • Price per Square Foot: $599
  • Buyer: Len O’Donnell - Affinius Capital
  • Seller: Lisa Silverstein - Silverstein Properties

Len O’Donnell, representing Affinius Capital, acquired an undisclosed stake in the property from Lisa Silverstein, who is associated with Silverstein Properties. This transaction indicates a strategic investment in a significant asset within the life sciences sector in Manhattan.

Players

Affinius Capital
Affinius CapitalBuyer
Silverstein Properties
Silverstein PropertiesSeller

New York Life Sciences Market Snapshot

Boundary boundary · Life Sciences · Sale transactions

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Purchase Price

Annual NOI

Loan Amount

Interest Rate (%)

Loan Term (yrs)

Down Payment (%)

Cap Rate

0.08%

Cash-on-Cash

-0.02%

Monthly Payment

$14,164

Annual Debt Svc

$169,964

Annual Cash Flow

$-11,334

DSCR

0.93