| Building Address: | 115 E 23rd St, New York NY 10010 |
| Building Name: | Gramercy /Flatiron Office Lofts |
| Building Alternate Address: | 115 E 23rd St |
| Zip Code: | 10010 |
| Neighborhood: | Gramercy Park |
| Borough: | Manhattan |
| Stories: | 12 |
| Year Built: | 1913 |
| Building Class: | B |
| Block & lot: | 00879-0009 |
115 E 23rd St, Manhattan, NYC
This building is located in the NoMad neighborhood of Manhattan and was constructed in 1913. It is a boutique office building within the Gramercy Park/Flatiron District, featuring a mix of office and retail spaces across its 12 stories. The building's historical significance lies in its association with Charles Atlas, the famous fitness icon, whose offices were once located here. Atlas sold his "Dynamic Tension" exercise program from this location, attracting many visitors in the mid-20th century.
The building itself spans approximately 69,007 square feet, with a current tax assessor's market value of over $16 million. It has undergone alterations, with the most recent significant update in 1968. Today, it hosts various professional services, including health care and retail businesses like Andiamo Pizza and Kung Fu Tea.
The area surrounding the building offers excellent access to parks such as Madison Square Park and Union Square, along with numerous transportation options. It is within walking distance of several major hospitals and retail centers, making it a prime location for businesses and visitors alike.
115 East 23rd Street, Manhattan, New York City
Located in the Gramercy Park/Flatiron District, 115 East 23rd Street is a boutique office building spanning 93,680 square feet over 12 stories. Constructed in 1913, this property offers loft-style office spaces and ground floor retail with basement access.
The building features a modern, attended lobby with 24-hour key card access, two updated passenger elevators, a freight elevator, and ADA-accessible bathrooms. Tenants benefit from tenant-controlled HVAC systems, wet pantries, and private restrooms on each floor. Additional amenities include high-speed internet and a shared rooftop deck.
Office spaces are available with high ceilings, natural light, and high-end finishes including glass and steel walls. There are fully built medical office floors equipped with multiple consultation rooms, procedure rooms, a lab, reception area, and staff lunch room. The building’s layout supports a range of uses from single company headquarters to office sharing.
Property Highlights
- Boutique office building in Midtown Manhattan
- 12 stories with approximately 93,680 sq ft
- Loft-style office spaces and ground floor retail
- 24-hour attended lobby with key card access
- Two passenger elevators and one freight elevator
- Tenant-controlled HVAC systems
- ADA-accessible bathrooms on each floor
- Shared rooftop deck
- High ceilings and abundant natural light
Location & Nearby Amenities
The property is steps from Madison Square Park, the Flatiron Building, Union Square, and convenient access to 10 subway lines including the 6 line at Park Avenue & 23rd Street. Nearby retail includes 7-Eleven, Starbucks, TD Bank, Wendy's, Kung Fu Tea, and Vitamin Shoppe.
Building Details
| Year Built | 1913 |
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| Stories | 12 |
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| Total Building Area | 93,680 sq ft |
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| Lot Size | 6,215 sq ft |
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| Building Class | Office with Commercial 7-19 Stories (O6) |
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Building Amenities at 115 E 23rd St, Manhattan, NYC
115 East 23rd Street is a boutique office building located in Midtown Manhattan's Gramercy Park/Flatiron District. The building spans approximately 72,000 to 93,680 square feet across 12 stories, with loft-style offices and ground floor retail space including basement access.
- Modern attended lobby with 24-hour key card access
- Two updated passenger elevators plus a separate freight elevator
- 24/7 secure tenant access
- Tenant-controlled HVAC systems on each floor
- ADA-accessible bathrooms throughout the building
- High ceilings (approximately 11 feet in medical office spaces)
- Central heating and air conditioning
- Shared rooftop deck for tenants
- Wet pantries and private restrooms on each floor
- High-speed internet connectivity
- Plug & play office spaces with natural light
- Janitorial and cleaning services
- Copy and print center available
- Technical support and WiFi access
- Lobby signage available for tenants
- Reception area flooded with natural light in some office floors
The building also offers flexible office layouts, including fully built-out medical office spaces with consultation rooms, procedure rooms, labs, and staff facilities such as lunch rooms and washers/dryers.
Office Tenants at 115 E 23rd St, Manhattan, NYC
Notable tenants at 115 E 23rd Street include:
- Freshly
- Professional Physical Therapy
- Amanda Brick, PT, DPT, OCS
- Self Help Africa
- East Egg Realty
- Beeby Clark & Meyler
- Cowork.rs
- Psychology Today Magazine
The building features full floor office spaces with medical office capabilities, including a fully built-out medical office on the 10th floor with multiple consultation rooms, labs, procedure rooms, recovery room, janitorial facilities, and staff lunch room.
115 E 23rd Street is a boutique office building in Manhattan’s Gramercy Park/Flatiron District, spanning approximately 93,680 square feet across 12 stories with loft-style offices and modern amenities such as tenant-controlled HVAC, 24-hour access, and ADA-accessible bathrooms.
Internet Providers at 115 E 23rd St, Manhattan, NYC
The following internet service providers are known to serve Manhattan, including the 115 E 23rd St area, offering a variety of connection types such as fiber, cable, DSL, and satellite.
Verizon Fios
Verizon offers a 100% fiber-optic network with gigabit speeds up to 940/880 Mbps. Plans start around $39.99. Services include Internet, Phone, and TV packages with upload speeds as fast as download speeds.
Spectrum
Spectrum provides cable and fiber internet with speeds up to 1 Gbps and no data caps. Plans start near $44.99. Bundles include Internet, Television, and Phone services with perks like Disney+ and ESPN+ available in some plans.
Astound Broadband (formerly RCN)
Astound Broadband offers cable and fiber internet with speeds up to 1.5 Gbps and unlimited data usage. Known for affordable pricing and coverage in much of Manhattan. Plans start at approximately $35 per month.
AT&T U-verse / AT&T Fiber
AT&T provides high-speed fiber internet with speeds up to 1 Gbps and various bundle options. Their plans include Wi-Fi equipment at no extra cost, with prices starting around $40 monthly.
Viasat and HughesNet (Satellite providers)
For locations where wired internet might be limited, Viasat and HughesNet offer satellite internet options with speeds up to 100 Mbps and 30 Mbps respectively, both with unlimited data plans.
Location and Cross Streets
115 E 23rd St is located in the Gramercy Park/Flatiron District of Manhattan, New York City. The building sits on East 23rd Street between Park Avenue South and Lexington Avenue, near other major cross streets including 1st Avenue and the FDR Drive.
Public Transportation Access
This location provides excellent access to multiple modes of public transit:
Subway Lines Nearby
- 6 Line (subway)
- L Line (subway)
- W Line (subway)
- 4 Line (subway) accessible near 1st Avenue and East 23rd St
Bus Routes Serving the Area
- BM3, BM4
- M23-SBS (Select Bus Service)
- M34A-SBS (Select Bus Service)
- M9, M15, M15-SBS
- M101, M102
- X37, X38, X63, X64, X68 (Express buses)
- SIM3, SIM6, SIM10, SIM11, SIM31 (Staten Island express buses)
Train and Ferry Access
- Harlem and Port Jefferson Branch trains nearby
- PATH train access
- New York City & New Jersey ferry service
Nearby Bus Stops
- Avenue C / E 23 St (approx. 1-minute walk)
- FDR Drive / E 23 St (approx. 1-minute walk)
- E 23 St / 1st Avenue (approx. 1-5 minutes walk)
- 1st Avenue / 23 St
- 1st Avenue / E 25 St
First and Last Transit Times
- First subway (L line) stops around 3:16 AM; last stop around 3:19 AM
- First bus (M23-SBS) stops around 3:00 AM; last bus around 2:55 AM
- First ferry (SV) stops at about 5:46 AM
