SOM’s 175 Park Avenue Supertall Near Grand Central Advances

RXR Realty and TF Cornerstone have submitted construction permits for SOM’s proposed 175 Park Avenue supertall in Midtown Manhattan. This move revives a project first announced in 2019.

If built, the tower would replace the Hyatt Grand Central New York adjacent to Grand Central Station. It would rise as the city’s third-tallest building.

The design, originally unveiled by SOM in 2021, has been refined and reduced to 1,545 feet and 83 storeys of mixed-use space. The building will combine hotel rooms with offices.

The site leverages 2010 zoning changes that allow adjacent blocks to reuse Grand Central’s air rights. This unlocks a strategic opportunity for a landmark project in a dense urban setting.

Revival of SOM’s 175 Park Avenue: Design and Permitting Update

The submitted permits mark a critical step in advancing the project. The plan has faced the challenges of a busy transit corridor and complex underground conditions.

SOM’s concept, first shown in 2021, has been adjusted to a height that balances performance and a bold presence on 42nd Street. The building would be a hybrid of hotel and office space, designed as a slender high-rise above an expanded street edge and transit-connected ground floor.

The tower’s structural expression centers on an external steel lattice that wraps the façade. Large steel columns intertwine into two bundled points on 42nd Street, anchoring into bedrock beneath the site.

Smaller steel cables link the columns, while V-shaped supports appear at each setback. This arrangement provides mostly column-free spaces inside and allows for outdoor amenity areas beneath slanting columns.

The design aims for both performance and a visually striking exterior. It also addresses the site’s challenging underground conditions.

At the base, the project would enlarge the sidewalk and create a new transit hall with retail. A partially covered entry would visually and physically link to Grand Central’s façade.

This integration aims to connect the new tower with the city’s historic transit hub and pedestrian network. Achieving these connections will require close coordination with transit operators and city agencies.

• Key design features: external lattice, bundled structural points, and V-shaped setbacks for column-free interiors and outdoor spaces.
• Ground-level integration: widened sidewalks, a new transit hall, and direct Grand Central connections to support a pedestrian-oriented urban experience.
• Zoning leverage: reuse of Grand Central air rights enabled by 2010 zoning changes to unlock height and floor area.

The developers still need to secure both funding and tenants. The project also requires demolition of the existing Hyatt Grand Central New York.

Demolition would take time due to the site’s complexity and active rail lines below. The Hyatt is accepting reservations through April 2027, suggesting a long lead time before construction.

SOM has indicated a 2032 completion date, but this depends on financing, approvals, and the challenges of dismantling a hotel above a live transit corridor.

Structural System: Addressing Subsurface Constraints

Extremely limited subsurface conditions—especially a tangle of underground rail tracks and limited bedrock—shape the project’s structural approach. The external lattice and bundled-column strategy transfer loads to strong bedrock pockets while keeping interiors open and enabling ground-level improvements.

The combination of deep foundations, transit-related constraints, and an ambitious high-rise program makes this project a notable example of high-performance design in a dense city.

Urban Ground-Level Experience and Transit Integration

The project emphasizes a pedestrian-friendly street experience and strong transit connections. By widening the sidewalk and adding a transit hall to Grand Central, 175 Park Avenue aims to refresh the public realm for commuters and visitors.

The partially covered entry and retail spaces are designed to activate the street, creating a dynamic edge along one of Manhattan’s busiest corridors. This reflects a growing focus on transit-oriented development in Midtown, where new towers are paired with improvements to mobility and street life.

Timeline, Funding, and Next Steps

With permits filed, the project now focuses on securing capital. Negotiations with potential tenants and planning for the demolition of the existing Hyatt Grand Central New York are also underway.

The timeline depends on operational constraints on the rail network. The broader planning approvals process also affects the schedule.

SOM’s stated completion date is 2032. However, the path from permits to groundbreaking is still uncertain.

Observers will watch for progress on demolition milestones and financing packages. Market interest in the tower’s mixed-use program will also be important.

As Midtown’s skyline adapts to Grand Central’s air rights and a challenging underground environment, 175 Park Avenue shows how architecture and engineering can transform a city block. The project aims to balance iconic design with the needs of a busy transit hub.

 
Here is the source article for this story: Proposed SOM supertall skyscraper next to Grand Central Station advances