Marcus & Millichap Expands to 41,000 SF at AmTrust RE's 260 Madison Avenue
NEW YORK — Marcus & Millichap has expanded its office footprint to 41,000 square feet at 260 Madison Avenue, a Midtown Manhattan property owned and operated by AmTrust RE, according to an announcement published May 21, 2026.
The transaction was first reported by Commercial Observer.
Deal Details
The expansion brings Marcus & Millichap's total occupancy at 260 Madison Avenue to 41,000 square feet. Financial terms of the lease, including rent, lease duration, and tenant improvement allowances, were not disclosed. The specific size of Marcus & Millichap's prior footprint at the building was also not detailed in the source material.
The building has approximately 500,000 square feet of rentable space, according to available property data.
About the Firms
AmTrust RE describes itself as a national real estate investment owner and operating firm managing a multi-billion-dollar portfolio, with headquarters in New York City and Chicago.
Marcus & Millichap is a national commercial real estate brokerage firm. The firm's expansion at 260 Madison Avenue reflects its continued presence in the New York market.
Sources
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