Penthouse E, a duplex residence spanning the top two floors of The Chatsworth, is on the market for $21.95 million, offering 6,000 square feet of indoor space and an additional 3,700 square feet of private rooftop terrace according to Robb Report. The expansive Upper West Side offering, located in a historic building, commands a premium price in 2026. Buyers seeking a unique luxury apartment sale are drawn to its scale and exclusive features. The particular duplex penthouse is a significant opportunity in the city's high-end real estate.
However, this nearly $22 million historic Upper West Side penthouse listing exists alongside 29 other apartment buildings for sale in the same neighborhood, according to LoopNet. The disparity shows a tension between concentrated ultra-luxury demand and broader market inventory.
Based on these high-value transactions and available inventory, the Upper West Side's luxury market appears to be bifurcated. Unique trophy properties continue to command premium prices, while the wider market might offer more options for buyers.
Inside the Chatsworth's Opulent Duplex
- The property features five en suite bedrooms. The primary suite includes dual marble bathrooms and multiple walk-in closets, according to Robb Report. High-end amenities show bespoke luxury designed for an ultra-wealthy buyer, aligning with the property's aspirational price.
UWS Ultra-Luxury Market Continues to Soar
A mansion at 48-50 West 69th Street recently entered contract with an $85 million asking price, according to Robb Report. The significantly higher-value transaction reinforces the Upper West Side's enduring appeal for unique, multi-million dollar properties. The transaction signals robust demand for exceptional assets within this exclusive segment.
The UWS ultra-luxury segment is characterized by a persistent, deep-pocketed buyer pool willing to pay top dollar for unparalleled exclusivity. The segment's characteristics effectively insulate this niche from general market fluctuations.
Navigating the Broader UWS Real Estate Landscape
There are 29 Upper West Side apartment buildings for sale, according to LoopNet. The substantial number suggests a diverse and active market beyond individual penthouse sales, indicating varied opportunities and potentially different demand levels across price points.
The Upper West Side's ultra-luxury market isn't just resilient; it appears to be an entirely separate ecosystem. Unique, trophy assets like The Chatsworth's Penthouse E command prices independent of broader neighborhood inventory.
Outlook for Upper West Side Luxury
The sustained activity in the ultra-luxury segment, exemplified by these high-profile listings, suggests unique, premium properties will likely continue to command top prices. The trend of sustained activity may see them outpacing the broader market in the coming years.
The market for ultra-luxury properties on the Upper West Side remains robust. It is driven by scarcity and unique features, distinguishing it from general market trends. For instance, brokers anticipate continued strong demand for properties like The Chatsworth's Penthouse E through late 2026.
Your Questions About UWS Luxury Real Estate Answered
What historic buildings are for sale on the Upper West Side in 2026?
Several historic buildings are available, including The Chatsworth, which houses Penthouse E. Historic properties often feature unique architectural details and extensive renovations. Buyers seek the prestige and character inherent in such landmark residences.
What are the most expensive penthouses for sale in NYC 2026?
While the $21.95 million Penthouse E at The Chatsworth is a notable listing, the $85 million mansion at 48-50 West 69th Street illustrates the top tier of UWS sales. The figures position the Upper West Side among New York City's most exclusive neighborhoods for ultra-luxury properties.
Are there any new luxury apartment sales on the Upper West Side in 2026?
Yes, the Upper West Side continues to see significant luxury apartment sales, particularly for unique properties. Ongoing interest in high-end residences shows a steady flow of transactions. The steady flow includes both new listings and properties entering contract throughout 2026.










