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Street View
$35,000,000
Monthly Est:$174,208
9 Beds
- 5 Baths
4 full baths + 5 half baths
17,600sqft
45 E 78th Street, New York, NY 10075
$35,000,000
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Single Family Residence
Built in 1913
$-- HOA
3,406 sqft lot
$1,989/sq.ft
Description
An unparalleled opportunity to acquire one of the Upper East Side's most storied and architecturally distinguished mansions, 45 East 78th Street is a landmarked townhouse of rare provenance, grand scale, and timeless elegance. For decades home to the celebrated Mnuchin Gallery, 45 East 78th Street now can present itself again as a private residence or commercial art gallery of the highest order.
Six magnificent stories with private elevator service throughout, this 33’ 4” wide mansion offers approximately 17,600 square feet of extraordinary volume across meticulously proportioned floors. Every detail speaks to a grandeur that is increasingly impossible to find in New York City.
Guests enter on the first floor into a beautiful and gracious entry gallery — a statement of arrival that immediately sets the tone. Adjacent to the double-door entry is what can be an elegant entertaining or dining gallery, perfect for large-scale receptions or intimate dinners. The kitchen on this level connects seamlessly to the floors above via a private staircase, which can facilitate entertaining.
The parlor floor is the social heart of this residence. Here, a dramatic circular staircase — a sculptural centerpiece — anchors a floor of sweeping, light-filled spaces. Two large formal entertaining spaces command each end of the property, each with fireplaces. These rooms, with their soaring ceilings and landmarked architectural detailing, are simply irreplaceable in today's market.
The entire third and fourth floors present well-proportioned rooms, offering flexibility for your desired use. Throughout the home, four full bathrooms and five powder rooms serve each floor with ease and discretion.
The crown of this exceptional residence is a 1,335-square-foot private rooftop terrace — a sky-high sanctuary above the Upper East Side roofline with direct elevator access. This floor is equipped with a full guest suite including a bedroom, kitchenette and full bathroom.
The garden level offers tall ceilings and oversized windows overlooking a north-facing courtyard.
The mansion dates to the early 1900s and, as a designated landmark, has retained its grand yet domestic character. Situated on East 78th Street between Madison and Park Avenues, the address places residents moments from Central Park, world-class museums, and the finest restaurants and boutiques the Upper East Side has to offer. A property of this caliber comes to market once in a lifetime.
- Houzeo last checked: 12 minutes ago
- Listing updated: May 20, 2026 at 7:09 pm
- Listing Provided by: Adam D Modlin (212) 974-0740 , Andrew Nierenberg (212) 974-0740 | Modlin Group LLC (212) 974-0740
- Source: Rebny MLS-NY | MLS#: RLS20092493

Property Details
Status
Active
Type
Single Family Residence
No. of Stories
5
County
City
Neighborhood
Year Built
1913
HOA Fees
-
Finished Area
17,600 sqft
Lot Size
3,406 sqft lot
Basement Area
- sqft
MLS Name
Rebny MLS
MLS Number
RLS20092493
Days on Market
167

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Location
Facts & Features
Rooms
Bedrooms & bathrooms
Bedrooms: 9
Bathrooms: 5
Interior
Exterior Features
Private Outdoor Space Over60sqft
Utilities & Energy
Laundry Features
In Unit
Other Features
Patio And Porch Features
Rooftop
Subdivision Name
Upper East Side
Price History
| Date | Event | Price |
|---|---|---|
05/20/2026 Source: | Listed for Sale | $35,000,000 $1,989/sqft |
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The real estate listing data marked with this icon comes from the IDX program of the RLS at REBNY Listing Service (RLS). Listing information for certain New York City properties provided courtesy of the Real Estate Board of New York's Residential Listing Service (the "RLS") through Nov 04, 2026, 05:30AM. Information deemed reliable but not guaranteed. Information is provided exclusively for consumers' personal, non-commercial use, and may not be used for any purpose other than the identification of potential properties for purchase. The information contained in this listing has not been verified by the RLS and should be verified by the consumer. The listing information provided here is for the consumer's personal, non-commercial use. Retransmission, redistribution or copying of this listing information is strictly prohibited except in connection with a consumer's consideration of the purchase and/or sale of an individual property. This listing information is not verified for authenticity or accuracy and is not guaranteed and may not reflect all real estate activity in the market. Buyer to verify all information. © 2026 The Real Estate Board of New York, Inc. All rights reserved.
Advertising Broker: Derek Greene | The Greene Realty Group

