Rent Office 251 Park Avenue South

251 Park Avenue South Building Amenities

251 Park Avenue South is a 16-story prewar commercial office building in Manhattan’s Flatiron District/Gramercy Park neighborhood, originally built in 1909 and classified as a Class B building.

The building offers:

• Magnificent views of Midtown South
• Façade of light stone tile with large glass windows of various shapes
• 12-foot ceilings on lower floors and up to 16-foot ceilings on upper floors
• Bright and open office spaces with exposed ceilings
• Tenant-controlled air conditioning
• Five glass-fronted offices, one glass-fronted conference room, open area accommodating 56+ workstations, and a collaborative pantry
• Planned major renovations including upgrades to windows, lobby, elevators, and mechanical systems
• Pre-built suite options designed for modern office needs

Its location offers proximity to public transportation hubs, popular retail and dining destinations, and is near Gramercy Park, Union Square, and Madison Square Parks.

251 Park Avenue South, Manhattan, NYC

251 Park Avenue South is a 16-story prewar office building located at the corner of 20th Street, in Manhattan’s Flatiron District/Union Square/Gramercy Park neighborhood. Built in 1909, the property features approximately 120,000 square feet of rentable office space with distinctive architectural elements such as a light stone tile façade, large glass windows, and ceilings ranging from 12 to 16 feet high. The building overlooks Midtown South and is situated in one of the most active and vibrant office markets in the country.

The building is prominently home to long-term tenants including Maharam, a fabric design company occupying more than 20,000 square feet on the upper floors. Santander Bank occupies retail space on the ground floor, contributing to the mixed-use nature of the property. The tenant base primarily consists of TAMI sector companies—Technology, Advertising, Media, and Information—reflecting the area's reputation as a hub for these industries.

Located within walking distance of Gramercy Park and Union Square, the building benefits from excellent public transportation access and proximity to a variety of distinguished retailers and dining establishments. Nearby landmarks include Baruch College, Gramercy Park Hotel, the Metropolitan Life Insurance Tower, and the iconic Flatiron Building.

The building is undergoing a major renovation program encompassing updates to the windows, lobby, elevators, and mechanical systems. Pre-built office suites will be available featuring bright, open layouts with exposed ceilings and tenant-controlled HVAC systems. The mix of collaborative pantries, glass-fronted conference rooms, and flexible office spaces caters to modern office needs, enhancing the tenant experience.

Internet Providers at 251 Park Avenue South, Manhattan, NYC

Residents and businesses at 251 Park Avenue South in Manhattan have access to several reliable internet service providers offering a range of options including fiber, cable, and other high-speed connections.

Verizon Fios

Verizon Fios is a leading fiber-optic internet provider in the area, known for extremely fast, symmetrical speeds up to 2 Gbps. It is highly rated for reliability and customer service, making it the top choice for most New Yorkers.

Astound Broadband (formerly RCN)

Astound Broadband offers both cable and fiber internet with competitive pricing and unlimited data usage. Their fiber service covers much of Manhattan, including 251 Park Avenue South, and provides speeds up to 1.5 Gbps.

Spectrum

Spectrum provides widely available cable and fiber internet throughout Manhattan, including this building, with download speeds reaching up to 1 Gbps and no data caps. It is a popular option for those seeking bundled services.

Optimum

Optimum offers high-speed cable and fiber internet with some of the fastest plans available in New York City, reaching speeds up to 8 Gbps in select areas, suitable for heavy internet users.