About
Availability
Building Overview
Contact
| Eastern view
| Northwest view
| Northeast view
| Southern view
Availability
Floor
30
29
28
27
26
25
24
23
22
21
20
19
18
16
15
14
12
11
10
9
Lobby
Ground (Retail)
Subtotal Above Grade
Cellar 01 (Retail)
Cellar 02 (Retail)
Subtotal Below Grade
Total Building Availability
Total SF
5,901
5,901
5,901
5,901
5,901
5,901
5,901
5,901
5,901
5,901
5,881
5,846
5,820
16,079
16,156
16,156
16,156
16,144
20,391
21,056
3,450
6,221
208,366
14,162
4,072
18,234
226,600
FTF Height
15'-0"
13'-0"
13'-0"
13'-0"
13'-0"
13'-0"
13'-0"
13'-0"
13'-0"
13'-0"
13'-0"
13'-0"
15'-0"
15'-0"
13'-0"
13'-0"
13'-0"
14'-0"
15'-0"
13'-0"
17'-11"
19'-0"
15'-0"
15'-0"
Tower Block | Floors 18-30
Average Size: 5,889 SF Total Size: 76,561 SF
Mid-Rise Block | Floors 9-16
Average Size: 17,488 SF
Total Size: 122,137 SF
Retail | Floors G - LL2
Total Size: 24,455 SF
HSS Block | Floors 2-8
Anchor Tenant: HSS
The Hospital for Special Surgery (HSS)—the world’s leading academic medical center focused on musculoskeletal health—will serve as the anchor tenant at 1520 First Avenue, with a dedicated lobby and a 195,580 square-foot outpatient facility spread across Floors 2-8.
Tower
Mid-Rise
Lobby & Retail
Floors 18-30
Average Size: 5,889 SF | Total Size: 76,561 SF
Exceptional Views
Unobstructed views of the East River and beyond due to Light and Air Easement agreement with neighbors.
Outdoor Space
The Tower Block offers an expansive outdoor terrace on Floor 19.
Optimal Scale
Floor proportions and dimensions are optimal for boutique healthcare practices and concierge medicine.
Rapid Access
Floors 9-30 will have six elevators for minimal wait time, two of which will be oversized for gurneys.
Ground-up build. Sky-high views.
Project Status
Upon completion, 1520 First Avenue will be New York City's largest privately-developed medical office building. The property is being developed by Extell Development, with substantial completion slated for 2Q 2025.
Foundation
Work
Completed
Superstructure
Top-Out
Completed
Facade
Curtain Wall
Completed
Tenant
Construction
1Q 2025
Substantial
Completion
2Q 2025
Developer
Workplace
Architect
Construction Manager
Leasing
For more information, contact:
Justin DiMare
Executive Managing Director
justin.dimare@nmrk.com
t. 212-372-2083
Jonathan Fanuzzi
Executive Managing Director
jonathan.fanuzzi@nmrk.com
t. 212-372-2036
Stephen Gordon
Senior Managing Director
stephen.gordon@nmrk.com
t. 212-372-2375
on the Upper East Side
New Development Project
Medically-Focused
The First
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Download Brochure
1520 First Avenue is a 435,000 square-foot, 30-story, mixed-use tower in the heart of Manhattan’s medical corridor.
Occupying the full easterly block front on First Avenue from East 79th to East 80th Street, the property is centrally located within the Upper East Side medical cluster–home to six of the world’s most prestigious hospitals and biological/medical research centers.
Outdoor Spaces
The building features a lush green roof and opportunites to access outdoor spaces + private terraces.
Efficient Core
Compact side core providing large uninterrupted floorplates ideal for the space planning and programming of healthcare-oriented tenants.
Increased Natural Light
Oversized 8’ tall by 6’ wide windows, a Light and Air Easement agreement with the neighbors, and the increased width of E79th Street and 1st Avenue allow for abundant natural light and stunning views from all four facades of the building.
Spacious, Customizable Floor Plates
The property offers mostly column-free floor plates spanning up to 21,056 SF and ceiling heights from 13 to 15 feet. The site’s expansive footprint allows for large floor plates that provide maximum flexibility for tenant build-outs and improvements.
Designed.
For.
Medical.
Enhanced Building Filtration
Post-COVID enhancements specific to healthcare solutions include increased ventilation and enhanced filtration throughout the building.
High-Performance Facade and Systems
High-performance facade and mechanical systems enhance user comfort and energy efficiency, while reducing operating and utility expenses.
Built For Healthcare
The building incorporates both DOH and Article 28 requirements provided for creating an ideal setting for outpatient facilities, such as ambulatory care and surgical facilities.
Interior Renderings / Mid-Rise Floors
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Exterior Photos
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Building Overview
Download Brochure
Rapid Access
Floors 9-16 were designed with the flexibility to accommodate life sciences, including required ceiling heights and mechanical systems.
Life Science Focus
Floors 9-16 were designed with the flexibility to accommodate life sciences, including required ceiling heights and mechanical systems.
Average Size: 17,488 SF | Total Size: 122,137 SF
Floors 9-16
Planning Flexibility
Large and unobstructed floor plates maximize operational efficiency and flexibility.
Significant Branding Potential
The ground level of the building provides ample space for external signage and branding.
Retail
The southern corner of the building offers significant retail frontage on both First Avenue 79th Street, with expansive 10’6” glass windows. The space offers possibility for exclusive elevators, escalators, and stairs.
Dedicated Lobby on First Avenue
A stunning concierge desk, gracious 18’ high ceiling, spacious seating areas with abundant natural light and greenery, and premium quality finishes, fixtures, and materials will provide a unique patient and tenant experience.
Total Size: 25,216 SF
Floors G-LL
View Images and test Fits
View Images and test Fits
1520 First Avenue is a 435,000 square-foot, 30-story, mixed-use tower in the heart of Manhattan’s medical corridor.
Occupying the full easterly block front on First Avenue from East 79th to East 80th Street, the property is centrally located within the Upper East Side medical cluster–home to six of the world’s most prestigious hospitals and biological/medical research centers.
Spacious, Customizable Floor Plates
The property offers mostly column-free floor plates spanning up to 21,056 SF and ceiling heights from 13 to 15 feet. The site’s expansive footprint allows for large floor plates that provide maximum flexibility for tenant build-outs and improvements.
Increased Natural Light
Oversized 8’ tall by 6’ wide windows, a Light and Air Easement agreement with the neighbors, and the increased width of E79th Street and 1st Avenue allow for abundant natural light and stunning views from all four facades of the building.
Efficient Core
Compact side core providing large uninterrupted floorplates ideal for the space planning and programming of healthcare-oriented tenants.
Spacious, Customizable Floor Plates
The property offers mostly column-free floor plates spanning up to 21,056 SF and ceiling heights from 13 to 15 feet. The site’s expansive footprint allows for large floor plates that provide maximum flexibility for tenant build-outs and improvements.
Built for Healthcare
The building incorporates both DOH and Article 28 requirements provided for creating an ideal setting for outpatient facilities, such as ambulatory care and surgical facilities.
High-Performance Facade and Systems
High-performance facade and mechanical systems enhance user comfort and energy efficiency, while reducing operating and utility expenses.
Floor
30
29
28
27
26
25
24
23
22
21
20
19
18
16
15
14
12
11
10
9
Lobby
Ground (Retail)
Subtotal Above Grade
Cellar 01 (Retail)
Cellar 02 (Retail)
Subtotal Below Grade
Total Building Availability
Total SF
5,901
5,901
5,901
5,901
5,901
5,901
5,901
5,901
5,901
5,901
5,881
5,846
5,820
16,079
16,156
16,156
16,156
16,144
20,391
21,056
3,450
6,221
208,366
14,923
4,072
18,995
227,361
FTF Height
15'-0"
13'-0"
13'-0"
13'-0"
13'-0"
13'-0"
13'-0"
13'-0"
13'-0"
13'-0"
13'-0"
13'-0"
15'-0"
15'-0"
13'-0"
13'-0"
13'-0"
14'-0"
15'-0"
13'-0"
17'-11"
19'-0"
15'-0"
15'-0"
Availability
Tower Block | Floors 18-30
Average Size: 5,889 SF Total Size: 76,561 SF
Tower Floors 18-30
Average Size: 5,889 SF Total Size: 76,561 SF
Midrise Floors 9-16
Average Size: 17,488 SF Total Size: 122,137 SF
High-Performance Facade and Systems
High-performance facade and mechanical systems enhance user comfort and energy efficiency, while reducing operating and utility expenses.
Midrise Floors 9-16
Average Size: 17,488 SF Total Size: 122,137 SF
Average Size: 5,889 SF | Total Size: 76,561 SF
Floors 18-30
Ground
Mid-Rise
Tower
Availability
Spacious, Customizable Floor Plates
The property offers mostly column-free floor plates spanning up to 21,056 SF and ceiling heights from 13 to 15 feet. The site’s expansive footprint allows for large floor plates that provide maximum flexibility for tenant build-outs and improvements.
Exceptional Views
Unobstructed views of the East River and beyond due to Light and Air Easement agreement with neighbors.
Exceptional Views
Unobstructed views of the East River and beyond due to Light and Air Easement agreement with neighbors.
Optimal Scale
Floor proportions and dimensions are optimal for boutique healthcare practices and concierge medicine.
Rapid Access
Floors 9-30 will have six elevators for minimal wait time, two of which will be oversized for gurneys.
Exceptional Views
Unobstructed views of the East River and beyond due to Light and Air Easement agreement with neighbors.
Average Size: 5,889 SF | Total Size: 76,561 SF
Floors 18-30
Planning Flexibility
Large and unobstructed floor plates maximize operational efficiency and flexibility.
Planning Flexibility
Large and unobstructed floor plates maximize operational efficiency and flexibility.
Average Size: 17,488 SF | Total Size: 122,137 SF
Floors 9-16
Dedicated Lobby on First Avenue
A stunning concierge desk, gracious 18’ high ceiling, spacious seating areas with abundant natural light and greenery, and premium quality finishes, fixtures, and materials will provide a unique patient and tenant experience.
Retail
The southern corner of the building offers significant retail frontage on both First Avenue 79th Street, with expansive 10’6” glass windows. The space offers possibility for exclusive elevators, escalators, and stairs.
Ground-up build. Sky-high views.
1 / 6
View East
View Northeast
View Northwest
Project Status
Upon completion, 1520 First Avenue will be New York City's largest privately-developed medical office building. The property is being developed by Extell Development, with substantial completion slated for 2Q 2025.
Foundation
Work
Completed
Foundation
Work
Completed
Superstructure
Top-Out
Completed
Facade
Curtain Wall
Completed
Tenant
Construction
1Q 2025
Workplace
Architect
Construction Manager
Leasing
Developer
For more information, contact:
Justin DiMare
Executive Managing Director
justin.dimare@nmrk.com
t. 212-372-2083
Jonathan Fanuzzi
Executive Managing Director
jonathan.fanuzzi@nmrk.com
t. 212-372-2036
Stephen Gordon
Senior Managing Director
stephen.gordon@nmrk.com
t. 212-372-2375
View Images and test Fits
View Images and test Fits
1520 First Avenue will be New York City's largest privately-developed medical office building. The property is being developed by Extell Development, with substantial completion slated for 2Q 2025.
Gallery
View Images and test Fits
View Images and test Fits
View Images and test Fits
View Images and test Fits
Gallery
Views
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2 / 2
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Interior Photos
Interior Renderings
Lobby Renderings
Views
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Construction progress as of October 2024
Exterior aerial photograph of the tower
Exterior detail photograph of the tower
Exterior aerial photograph — terrace areas are renderings
Exterior aerial photograph
Construction progress as of October 2024
Exterior detail photograph of the tower
Construction progress as of October 2024
Construction progress as of October 2024
Construction progress as of October 2024
Construction progress as of October 2024
Construction progress as of October 2024
Construction progress as of October 2024
Tower floor interior (under construction)
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Tower floor interior (under construction)
3 / 5
Oversized windows – 8' x 6' (under construction)
4 / 5
Tower floor interior (under construction)
5 / 5
Tower floor interior (under construction)
Rendering of a finished mid-rise floor
Rendering of a finished mid-rise floor
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Elevator bank rendering
3 / 4
Lobby rendering
2 / 4
Lobby rendering
1 / 4
Lobby rendering
View South
View East
1 / 4
View Northwest
3 / 4
View Northeast
2 / 4
Availability
Availability
Availability
Contact
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Exterior Photos
