Rent Office 635 Avenue of the Americas

635 Avenue of the Americas

Location: Manhattan, New York, NY 10011

Located in the heart of Chelsea between 19th and 20th Streets, 635 Avenue of the Americas is a Class A office building with a rich history as the former Simpson Crawford Department Store. The property was redeveloped and completed in 2015, featuring a new lobby, modern elevators, advanced building systems, and a unique penthouse rooftop with a bocce court and event space.

Building Information

• Year Built / Renovated: 1902 / 2015
• Building Size: Approximately 111,778 SF
• Building Height: 8 Stories
• Building Class: B
• Typical Floor Size: ~13,972 SF

LEED and Sustainability

The building is LEED EB: O+M v3 Gold certified, achieving significant water use reduction and energy efficiency through strategic upgrades and advanced building automation systems. This certification highlights the building’s commitment to sustainability and operational excellence.

Current Use and Notable Tenants

635 Avenue of the Americas currently houses the National Museum of Mathematics (MoMath), which will occupy approximately 34,363 SF starting in 2026. MoMath’s new location will include classrooms, exhibits, and event spaces designed to inspire and engage visitors in mathematics.

Amenities and Features

• Newly renovated lobby
• Shared roof deck with event space and bocce court
• State-of-the-art building systems
• Proximity to bus and subway lines

Building Amenities at 635 Avenue of the Americas, Manhattan, NYC

635 Avenue of the Americas is a Class A office building located in the heart of Chelsea between 19th and 20th Streets, originally completed in 2015 after redevelopment. The building features a newly renovated lobby with a warmer, inviting palette and a reception area inspired by opera chandeliers, blending heritage with modern design.

The building offers state-of-the-art systems and passenger elevators for efficient vertical transportation.

Tenants have access to two outdoor terraces on the 8th and 9th floors. These terraces have been transformed into lush garden spaces with ample seating to support outdoor meetings, midday breaks, and events. The 9th floor terrace was renovated from a former bocce court into a wildflower planter area with built-in benches and furniture for enhanced usability. The 8th floor terrace, directly accessible from a tenant suite, features east-facing gardens creating various seating enclaves, offering picturesque views of the Manhattan skyline.

Additional building highlights include a shared roof deck amenity and modernized building automation systems that contribute to sustainability, including water use reduction initiatives and LEED Gold certification achieved in 2020.

Office Tenants at 635 Avenue of the Americas, Manhattan, NYC

635 Avenue of the Americas, located in the heart of Chelsea between 19th and 20th Streets, is a Class A office building with a rich history and modern amenities.

The building has undergone significant redevelopment, including a new lobby, elevators, and state-of-the-art building systems, completed in 2015. It features a unique penthouse rooftop with a bocce court and event space.

Notable Tenants

• Infor – A leading provider of business application software, Infor signed a long-term expansion lease covering 49,246 square feet, representing 47% of the 635 building. Their total commitment at 635-641 Avenue of the Americas is 92,246 square feet, supporting their substantial growth in the Midtown South submarket.
• DSM – Another current tenant occupying office space within the building.

Building Features

• Entire 6th Floor: Approximately 12,322 sqft of office space, featuring 5 meeting rooms/offices and an open area, customizable by the landlord.
• Entire 7th Floor: Approximately 11,958 sqft of office space, similarly featuring 5 meeting rooms/offices and open area, with build-out options.

The building is prized for its location in Manhattan’s Midtown South, often referred to as “Silicon Alley,” known for its concentration of technology and new media companies.

Internet Providers at 635 Avenue of the Americas, Manhattan, NYC

The building located at 635 Avenue of the Americas in Manhattan is served by several high-speed internet providers offering fiber connections with varying speeds suitable for business and commercial needs.

Available Internet Providers and Technology

• Verizon New York: Fiber technology with speeds up to 1 Gb/s download and 25 Mb/s upload.
• Level 3 Communications: Fiber technology with speeds up to 10 Gb/s download and 10 Gb/s upload.

These providers are known for their fast and reliable fiber-optic internet services which are ideal for secure, high-demand business operations.

Location

635 Avenue of the Americas is located in the Chelsea neighborhood of Manhattan, NYC, between West 19th and West 20th Streets.

Cross Streets

The building is situated on Sixth Avenue (Avenue of the Americas) between West 19th Street and West 20th Street.

Transportation

Subway Stations Nearby

• 18 Street Station (1 train)
• 14 Street Station (F, L trains)

Bus Routes Serving the Area

• BM3
• BXM4
• M34-SBS
• M55
• QM10

Nearby Transit Stops

• 6 Av / W 35 St (1 min walk)
• 6 Av / W 36 St (2 min walk)
• W 34 St / 6 Av (2 min walk)
• 6 Av / W 34 St (2 min walk)