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343 345 Madison Avenue

Owen D. Thomas Of Boston Properties Leases 275000 SF Office To Starr At 343 Madison Avenue
LEASEDOffice

Owen D. Thomas Of Boston Properties Leases 275000 SF Office To Starr At 343 Madison Avenue

343 345 Madison Avenue

Building Size

275,000 SF

Asset Type

Office

Closing

Jan 7, 2026

AI

The asset involved in this transaction is an office space located at 343 Madison Avenue in Midtown Manhattan. The property encompasses 275,000 square feet and is part of a larger 930,000-square-foot building.

Summary of transaction details:

BXP has signed a 20-year lease agreement with Starr, allowing the insurance and investment firm to occupy floors 16–27 of the property for its New York headquarters.

Players

Caroline Merck

CBRE

Broker

$116.1M

vol

6 deals

Broker
CBRE
CBREBrokerage

Owen D. Thomas

Boston Properties

Landlord

$2B

vol

19 deals

Landlord
Boston Properties
Boston PropertiesLandlord

New York Office Market Snapshot

Boundary boundary · Office · 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