Rothstein Kass Renews, Expands at SL Green’s 1350 Sixth

nyc 1350sixthavenue Rothstein Kass Renews, Expands at SL Greens 1350 Sixth

Account closed.

Rothstein Kass & Co. has inked a lease for 88,049 square feet at 1350 Avenue of Americas, marking a significant renewal and expansion for the international accounting firm.

The firm, whose deal was announced yesterday, currently occupies 55,308 square feet on floors 10, 15, and 16. The addition of another 32,741 square feet on floors 9 and 14 will not only allow the company to create two contiguous blocks of floor space but also makes them the largest office tenant in the building, brokers said. With the new long-term lease and coterminous extensions on floors 10 and 15, meanwhile, the tenant will eventually vacate its 16th floor space in 2014.

Perhaps most significantly for the accounting firm, however, is the signage rights it snagged with the deal outside of the building.

Jarod Horowitz of Cushman & Wakefield represented the New Jersey-based tenant while the landlord, SL Green, was represented in-house by Howard Tenenbaum and Gary Rosen.

“SL Green accommodated our needs as a growing firm by allowing us to expand within the building on non-contiguous floors, which will enable the firm to operate more efficiently as well as provide us with monumental signage outside of the building,” said Steven Kass, chief executive and co-managing principal of Rothstein Kass, in a statement.

jsederstrom@observer.com