Garnett Station Partners Expands New York City Office
The private investment firm signed an 11.5-year lease for over 10,000 square feet at 450 Park Avenue.
Updated on Oct. 15, 2026 in Commercial

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Garnett Station Partners has secured a 10,392-square-foot expansion at 450 Park Avenue in Midtown Manhattan. This new deal brings the firm's total footprint in the building to 35,355 square feet.
Why it matters
The expansion reflects the firm's continued growth as it manages approximately $4.5 billion in assets. It reinforces the standing of 450 Park Avenue as a destination for major financial firms.
The 11.5-year lease agreement features an asking rent of $140 per square foot. The firm currently maintains office space across the 24th, 25th, and 27th floors.
The players
Garnett Station Partners
This is a private investment firm that manages approximately $4.5 billion in assets.
SL Green Realty
This is a major real estate investment trust that purchased 450 Park Avenue for $445 million in 2022.
BankUnited
This is a financial institution that expanded its footprint at 450 Park Avenue to 27,392 square feet in October 2026.
Newmark
This is a commercial real estate services firm that represented the tenant in the lease deal.
CBRE
This is a global commercial real estate services and investment firm that acted for the landlord.
The details
Newmark brokers represented Garnett Station Partners in the transaction, while representatives from CBRE and SL Green Realty acted on behalf of the landlord. The expansion follows the firm's relocation to the building in 2023, moving from its former address at 853 Broadway.
Timeline
Garnett Station Partners was founded in 2013.
SL Green purchased 450 Park Avenue in 2022.
The firm relocated to 450 Park Avenue in 2023.
BankUnited expanded its office space in October 2026.
Culture Shift
This deal follows the broader flight-to-quality trend in Midtown Manhattan, where established firms consolidate operations in high-profile properties. It signals a move away from secondary locations as firms prioritize flagship office assets.
The presence of growing investment firms at 450 Park Avenue supports continued commercial activity in the Midtown Manhattan office market. Tenants in the building may see increased demand for high-end office amenities as occupancy levels rise.
The takeaway
Commercial office expansion in premier buildings remains a key indicator of corporate health for investment firms. Readers should note that high-profile assets continue to attract long-term commitments despite changing work habits.
Further reading
For additional context on local office activity, read more at New York City Commercial.
Source note: This article includes information reported by Commercial Observer.
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