320 Park Avenue, a 35-story office tower located in the prestigious Plaza District of Manhattan.

Image via Google Street View

Address: 320 Park Avenue Class: A
Cross Streets: 50th & 51st Streets Size: 730,000 SF
Year built: 1960 Architect: Swanke Hayden Connell Architects, Emery Roth & Sons

The famous Mutual of America Building at 320 Park Avenue stands in the heart of Midtown Manhattan’s Plaza District. However, this building isn’t just a part of the skyline; it’s a cornerstone of business and elegance. With a history as rich as its tenant list, let’s explore why 320 Park Avenue office space is a testament to visionary architecture, strategic renovation, and a place to make your mark.

A Storied Beginning

Meet a building that has evolved in lockstep with the city itself. Originally completed in the early 1960s and designed by Emery Roth & Sons, 320 Park Avenue was given a new lease on life in 1994. Moreover, this building has retained its grandeur and size advantage thanks to a strategic purchase by Mutual of America for $130 million in 1992 and an extensive renovation. That’s a rarity with today’s strict zoning laws.

Premier Plaza District Office Space

With 730,000 square feet spread over 35 stories, 320 Park Avenue offers second-to-none, Class A office space. Owned and managed by Mutual of America Life Insurance Company and JLL, this International Style tower is a LEED Gold-certified beacon of sustainability and style. From its historic significance as the ITT Corporation World Headquarters to its comprehensive renovation in 1994, every detail provides tenants with an advanced and comfortable working environment.

State-of-the-Art Amenities

Office space at 320 Park Avenue goes beyond the basics to provide an unparalleled experience for its tenants. So, with amenities designed to meet every need, consider it a pinnacle of luxury and convenience. Here’s why:

  • Full-Service Concierge and Messenger Center: Offering personalized attention and seamless communication services ensures business operations run smoothly.
  • Tenant-Controlled Air Conditioning: Empowering tenants to customize their space for optimal comfort and productivity.
  • Efficient Elevator Service: With 17 passenger elevators, access to your office is quick and efficient. Hence, think of the minimized wait times and maximized convenience.
  • Breathtaking Views: Double-pane windows and flexible floor plates enhance the workspace’s aesthetic and functional appeal. In addition, they offer spectacular views of Park Avenue and Grand Central Terminal.
  • Exclusive Event Space: An elegant event space with a capacity of up to 225 guests for receptions is enough of a perk. However, here, think of your next corporate gathering overlooking a breathtaking Midtown Manhattan view.

Unparalleled Location

Location is everything in New York City, and 320 Park Avenue delivers in the prestigious Plaza District. Tenants enjoy easy access to high-end retail shops, dining venues, and major subway lines, including the E, M, 4, and 6 trains. Leasing 320 Park Avenue office space is all about being at the center of the action.

A Roster of Esteemed Tenants

320 Park Avenue is a community of leaders and innovators with high-profile tenants like Mizuho Securities USA, Weiss, and First Republic Bank. Moreover, with retailers like Chipotle, those ground floor burrito bowls are the cherry on top. The building has an environment of prestige and excellence. It’s where industry leaders come together, as a place to work, connect, inspire, and succeed.

Available Space

Interested in office space at 320 Park Avenue (Mutual of America Building)?
Contact us today.

Building Location & Nearby Public Transportation

Nearby Transportation


53rd Street–Lexington Avenue - 2 minutes Walk
53rd Street–5th Avenue - 8 minutes Walk
51st Street (6) - 0 minute Walk


East 50th Street/2nd Avenue - 7 minutes Walk
East 50th Street/3rd Avenue - 5 minutes Walk
East 50th Street/Lexington Avenue - 3 minutes Walk
East 50th Street/Madison Avenue - 5 minutes Walk
East 50th Street/5th Avenue - 8 minutes Walk
East 49th Street/Madison Avenue - 7 minutes Walk
East 49th Street/Lexington Avenue - 4 minutes Walk
East 49th Street/3rd Avenue - 5 minutes Walk
East 49th Street/2nd Avenue - 7 minutes Walk
2nd Avenue & East 50th Street - 7 minutes Walk
2nd Avenue & East 54th Street - 7 minutes Walk
East 57th Street & 3rd Avenue - 8 minutes Walk
East 57th Street & Lexington Avenue - 7 minutes Walk
Madison Avenue & East 54th Street - 6 minutes Walk
Madison Avenue & East 48th Street - 7 minutes Walk
East 57th Street & Park Avenue - 7 minutes Walk
3rd Avenue & East 55th Street - 5 minutes Walk
3rd Avenue & East 47th Street - 7 minutes Walk

Important Information

Listings are presented for illustrative purposes only; they may no longer be available and are provided merely as an exemplary representation of the types of spaces in a given neighborhood for a given price.