Brown Advisory to move NY office to Tishman Speyer’s 520 Madison Ave.

Manhattan, NY Tishman Speyer reached an agreement with Brown Advisory, who will be moving their New York office to 520 Madison Ave. This brings Tishman Speyer’s one million s/f Plaza District office tower to 99% leased.

Brown Advisory will occupy 34,748 s/f across the tower’s entire 27^th floor and a portion of the 26^th. As part of a 15-year lease, the global investment management and strategic advisory firm will more than double its current 16,000 s/f footprint when it moves from 12 East 49^th St. in the fourth quarter of 2026.

520 Madison is leased to a roster of global financial and investment firms. Since the start of 2025, Tishman Speyer completed 125,000 s/f of leasing at the property.

Built in 1982, the 43-story tower is known for its signature sloping architecture and polished red granite façade. The design features a lush outdoor plaza, stylish office lobby, and curated art program.

Tishman Speyer was represented in-house by Megan Sheehan and Sam Brodsky. Brown Advisory was represented by Cynthia Wasserberger, Michael Berg, Bobby Blair and Sofia Bruno of JLL.

Located between East 53^rd and East 54^th Sts., 520 Madison is surrounded by the Plaza District’s best restaurants, retailers, hotels and corporate headquarters, as well as convenient commuting options. Santi, the celebrated modern Italian restaurant by Michelin-starred chef Michael White, is at the base of the tower, along with personal care and beauty retailer Sephora, men’s active wear company Rhone Apparel, and Italian hair and skincare boutique Barberino’s.

“We’re pleased to welcome Brown Advisory to 520 Madison, a building that continues to attract leading global firms seeking best-in-class workspace in the heart of Midtown,” said Tishman Speyer senior managing director Chris Shehadeh. “Successful firms are drawn to 520 Madison for its distinct design, breathtaking views, and amenities, which support long-term growth and employee engagement.”

Customers at 520 Madison benefit from access to ZO, Tishman Speyer’s global amenities network, which prioritizes diverse experiences and innovative programming including health and wellness. The LEED-Gold tower offers 24/7 concierge service, a paddle tennis court, and an onsite bike room.