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Open House
Sat, Oct 31 · 12:30PM–2:00PM
Open House
Sat, Oct 31 · 12:30PM–2:00PM
$3,250,000
MLS# RLS20114270 · Upper West Side
Listed September 10, 2026 · 46 days on the market
4 Beds 4 Baths
Introducing Penthouse 67 at 205 West 89th, a rare opportunity to create an extraordinary residence in the sky.
Already combined from two adjoining penthouses, this remarkable home spans more than 2,000 square feet and is surrounded by a nearly 1,000-square-foot private terrace-the largest among Astor Court's penthouses. Accessible from multiple points throughout the residence, the wraparound terrace offers exceptional possibilities for gardens, outdoor dining, entertaining, and intimate seating areas, creating a seamless connection between indoors and out.
Perched atop historic Astor Court, Penthouse 67 possesses qualities that simply cannot be replicated: exceptional privacy, abundant natural light, seven skylights, two wood-burning fireplaces, and extraordinary private outdoor space.
An architectural vision reveals just how exceptional it can become.
Presented with a proposed plan by Harvard-trained architect Michael Mahal, founder of M Design Group, the penthouse has been reimagined to showcase the potential of its scale, architectural character, and relationship to the terrace.
A private tiled walkway leads to the residence and expansive outdoor space, creating an arrival unlike that of a conventional Manhattan apartment. Inside, natural maple floors and skylights bring warmth and sunlight throughout, while two wood-burning fireplaces provide architectural anchors for a future redesign.
The north wing currently offers an open living, dining and kitchen area centered around a wood-burning fireplace, two bedrooms and two full baths. The south wing, with its own private entrance, offers four additional rooms, two full baths, a second fireplace, and an oversized laundry and storage room.
M Design Group's proposed plan envisions generous entertaining spaces flowing naturally toward the terrace, beautifully proportioned bedroom suites, and an extraordinary primary sanctuary with dual en-suite baths, a dressing room, sitting area, and wood-burning fireplace.
Astor Court is one of the Upper West Side's great residential landmarks. Designed by Charles A. Platt and completed in 1916, the full-service cooperative is centered around its celebrated landscaped English garden and offers full-time door staff, a fitness center, playroom, roof deck, and pet-friendly policy.
Penthouse 67 is more than an opportunity to renovate-it is a chance to create a singular Manhattan penthouse: private, expansive, filled with light, surrounded by outdoor space, and designed entirely around the way its next owner wants to live.
The bones are extraordinary. The possibilities are even greater.
For those seeking additional scale, there may be an opportunity to further expand Penthouse 67-the combination of PH6 and PH7-through a combination with the adjoining one-bedroom PH8, subject to availability and a separate transaction.
All proposed alterations and any potential combination are subject to architectural feasibility, cooperative board approval, and applicable governmental approvals. PH8 is subject to availability and a separate transaction.
2% flip tax paid by buyer.
For modern renderings please inquire and we will send your way.
This proposed floor plan is conceptual and subject to verification, architectural and engineering review, and all required building, Board, and regulatory approvals, with no guarantee of constructability or final configuration."

Curtis Bain
Brown Harris Stevens
Services and facilities
Wellness and recreation
Outdoor space
Estimate
The rate is a placeholder, not a quote. Enter the one your lender gives you.
$24,450 / month
Co-op share loans aren't subject to mortgage recording tax. Not included: attorney, title insurance, lender and appraisal fees, board application and move-in fees, flip tax and prepaid items. Estimates only, based on the published New York State rates. Your attorney and lender will confirm the real figures.
Gallery
Listing Courtesy of Brown Harris Stevens Residential Sales LLC
This information is not verified for authenticity or accuracy and is not guaranteed and may not reflect all real estate activity in the market. ©2026 The Real Estate Board of New York, Inc., All rights reserved.
205 W 89TH Street is a 12-story elevator cooperative in Upper West Side, completed in 1915 and home to 158 residential units. The most recent major alteration on record was in 1988.
The closest subway is 86 St (1), about a 4-minute walk. Riverside Park is roughly 6 minutes away on foot.
Compiled from NYC public records and open data.
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205 W 89TH Street PH67
Walking times are estimates. Schools shown are the nearest public and charter schools and are not zone assignments; a nearby school is not necessarily the one an address is zoned for. Confirm zoning with the NYC Department of Education. Sources: MTA, NYC Parks and NYC Department of City Planning open data.
The Neighborhood
Grand prewar residences flanked by two iconic parks and world-renowned cultural institutions.
Walkability
9/10
Public transit
9/10
Schools
10/10
Dining
9/10
Groceries & parks
9/10
Strong public schools like PS 87 and PS 199, top progressive private schools, and many students who transition into elite NYC high schools.
Private schools in the area include Collegiate School, Trinity School, Columbia Grammar & Preparatory School, The Calhoun School.
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