Inside One of NYC’s Best Office Subleases: The Entire 26th Floor at 550 Madison

 

An exceptional full floor sublease has hit the market at 550 Madison Avenue, offering nearly 24,000 square feet of lavishly finished office space in one of Manhattan’s premier buildings.

A creditworthy hedge fund with nearly $6 billion under management is offering its entire 26th floor, consisting of 23,926 rentable square feet, furnished and wired, with immediate possession. The sublease runs through December 31, 2030, with an asking rent of $210 per rentable square foot annually.

Built to an extraordinarily high standard, the space brings together glass, wood, steel, marble, and an extensive collection of luxury finishes. The richness of the materials and attention to detail create the kind of headquarters that makes an impression from the moment a client walks through the door.

For a hedge fund, private equity firm, investment manager, or family office seeking luxury office space in NYC, this is an opportunity to occupy a serious financial headquarters in a building that has become one of the city’s premier addresses for financial firms.

 

550 Madison Avenue Sublease Details

Detail	Offering
Space	Entire 26th floor
Size	23,926 RSF
Sublandlord	Creditworthy hedge fund with nearly $6 billion under management
Possession	Immediate
Asking rent	$210 per RSF annually
Term	Through December 31, 2030
Condition	Furnished and wired

An Extraordinary Installation With Luxury Finishes Throughout

The quality of this installation is a major part of the story.

Expansive glass, rich wood, steel detailing, and marble give the floor a substantial, polished presence. The materials work together to create an office that feels tailored and expensive, with the level of finish expected in a leading investment firm’s headquarters.

It is the kind of space that would require considerable planning, expense, and patience to recreate.

The layout includes 28 perimeter offices, 48 open workstations, seven meeting rooms, three phone rooms, a reception area, and a large collaborative pantry. That combination accommodates private offices, an investment team, and frequent client meetings within a single, cohesive floor.

Because the premises are offered furnished and wired, an incoming tenant whose requirements match the installation could avoid much of the construction and procurement process associated with a new office.

Layout details are from the marketing flyer.

Why This Is Among NYC’s Best Office Space Subleases

At $210 per square foot, this is a premium offering. The quality of the installation and the building explain why it deserves attention.

You have an entire floor finished to an exceptional standard, immediate availability, and a term through the end of 2030. Downstairs, the lobby, private amenity spaces, landscaped garden, and destination restaurants carry that same sense of quality throughout the property.

For a firm comparing trophy office space in NYC, the economics extend beyond the asking rent. Recreating a highly finished office requires capital, time, and coordination. If the existing layout works, this sublease offers a substantial head start.

I would put it on the shortlist for financial firms seeking the best office space subleases in NYC in this size range.

550 Madison Has Become a Premier Address for Financial Firms

550 Madison is now firmly established among Manhattan’s most desirable office addresses.

Its appeal starts with the architecture, but the building’s transformation goes much further. Ownership invested in the infrastructure, arrival experience, amenities, and hospitality needed to compete at the top of the office market.

The result is a building where the quality holds together from the entrance to the office floor. For firms welcoming investors, institutional clients, and prospective hires, that consistency matters.

The leasing roster reinforces its standing. Clayton Dubilier & Rice, Junto Capital, Corsair Capital, and Aquarian have all committed to space at 550 Madison, placing the building squarely within the conversation for financial firms seeking a distinguished NYC headquarters.

From AT&T to Sony to Trophy Office Space

Most New Yorkers still call 550 Madison the Sony Building. It was actually designed for AT&T.

Completed in 1984, the Philip Johnson and John Burgee tower became an architectural landmark thanks to its pink granite exterior, monumental entrance arch, and recognizable Chippendale roofline. The city formally designated it a landmark in 2018. Sony leased the building in 1991, beginning its long association with the address.

The building always had stature. Its renovation brought the interiors and tenant experience up to the same level.

Olayan’s $300 Million Transformation

The Olayan Group purchased 550 Madison in 2016 for approximately $1.4 billion and undertook a renovation reported at roughly $300 million, converting a former corporate headquarters into a modern office building for multiple tenants.

Working with RXR Realty and Chelsfield, Olayan assembled a design team that included Snøhetta, Gensler, and Rockwell Group. Snøhetta handled the exterior and garden, Gensler redesigned the lobby, and Rockwell Group designed the tenant amenity spaces.

The renovation included new elevators and HVAC systems, upgraded interiors, and nearly 30,000 square feet of amenities. The property also achieved LEED Platinum and WELL Gold certifications.

The lobby sets the tone. Its soaring proportions, suspended Solid Sky sculpture by Alicja Kwade, and view through to the garden create an arrival with real grandeur. It is a fitting entrance for a building of this caliber.

Private Club Amenities and a Midtown Garden

The building’s private club level, The Arch, includes the Grand Hall, meeting rooms, a library curated with Assouline, and lounges for informal meetings or a break from the office. Rockwell Group’s interiors give these spaces the warmth and sophistication of a private members club.

The Oasis Fitness & Wellness Center includes workout facilities, private areas for personal training and physical therapy, and individual shower and changing spaces. Prospective subtenants should confirm their access to the amenity program as part of the transaction.

Outside, Snøhetta’s approximately 21,300 square foot public garden offers landscaping, seating, and a glass canopy. It gives the property something unusual in Midtown: a generous outdoor setting immediately beside the office tower.

 

COTE 550 and Bar Chimera Elevate the Address

The restaurants add another dimension to working at 550 Madison.

COTE 550 and Bar Chimera opened in April 2026, bringing Simon Kim and Gracious Hospitality to the building. COTE’s second New York location combines Korean barbecue with an American steakhouse in a dramatic space beneath the tower.

At ground level, Bar Chimera offers a brasserie menu and three distinct bar programs focused on martinis, whiskey, and wine. Both restaurants were designed by Rockwell Group.

The lineup also includes the announced Sushi Yoshitake New York, an omakase concept from chef Masahiro Yoshitake, which the operator currently lists as coming soon.

For financial firms that regularly entertain clients and investors, having destination dining downstairs is a considerable advantage. A meeting can move directly into drinks or dinner without leaving the building.

 

A Tenant Roster That Reflects the Quality

Alongside its investment firms, 550 Madison has attracted major names in insurance and luxury.

Chubb signed for approximately 240,000 square feet, Hermès selected approximately 72,000 square feet for its U.S. headquarters, and Clayton Dubilier & Rice committed to approximately 144,000 square feet. Junto Capital and Corsair Capital also signed leases in the building.

Aquarian subsequently leased approximately 75,000 square feet across the three level penthouse.

These commitments speak to the building’s success in attracting companies with high expectations for their offices.

Tour This Luxury Office Sublease at 550 Madison

For a firm seeking roughly 24,000 square feet of furnished luxury office space in NYC, the entire 26th floor brings together an unusually strong set of attributes: an extraordinarily high standard of finish, an office intensive layout, immediate possession, and one of the city’s premier financial addresses.

The glass, wood, steel, marble, and luxury detailing give the space the presence of a flagship headquarters. The building delivers the amenities, service environment, and dining options to match.

This is trophy office space worth seeing in person.

Contact Lance Leighton for more information, the floor plan, or a private tour of the 550 Madison Avenue sublease.