New York (Upper East Side), NY, 10075 | $35,000,000

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.

Features

  • Town: New York
  • Rooms: 18
  • Bedrooms: 9
  • Baths: 4 full / 5 half
  • Lot Size: 33.33 x 102.17
  • Laundry: In Unit
  • Year Built: 1913
  • Approx Sq. Feet: 17,600
  • Lot Size: 33.33 x 102.17
  • Est. Taxes: $385,900
  • Pet Policy: Building Yes,Yes
  • MLS#: RLS20092493
  • Days on Market: 7 days
  • Website: https://www.raveis.com
    /eprop/RLS20092493/45e78thstreet_newyork_ny?source=qrflyer
Copyright © 2026  The Real Estate Board of New York, Inc., All rights reserved
All information is intended only for the Registrant’s personal, non-commercial use. This information is not verified for authenticity or accuracy and is not guaranteed and may not reflect all real estate activity in the market. RLS Data display by William Raveis Real Estate, Inc.
Listing courtesy of Modlin Group LLC   Phone: (212) 974-0740

William Raveis Family of Services

Our family of companies partner in delivering quality services in a one-stop-shopping environment. Together, we integrate the most comprehensive real estate, mortgage and insurance services available to fulfill your specific real estate needs.

Customer Service

888.699.8876

Contact@raveis.com

Our family of companies offer our clients a new level of full-service real estate. We shall:

  • Market your home to realize a quick sale at the best possible price
  • Place up to 20+ photos of your home on our website, raveis.com
  • Provide frequent communication and tracking reports showing the Internet views your home received on raveis.com
  • Showcase your home on raveis.com with a larger and more prominent format
  • Give you the full resources and strength of William Raveis Real Estate, Mortgage & Insurance and our cutting-edge technology

To learn more about our credentials, visit raveis.com today.

Sarah DeFlorioVP, Mortgage Banker, William Raveis Mortgage, LLC

NMLS Mortgage Loan Originator ID 1880936

347.223.0992

Sarah.DeFlorio@Raveis.com

Our Executive Mortgage Banker:

  • Is available to meet with you in our office, your home or office, evenings or weekends
  • Offers you pre-approval in minutes!
  • Provides a guaranteed closing date that meets your needs
  • Has access to hundreds of loan programs, all at competitive rates
  • Is in constant contact with a full processing, underwriting, and closing staff to ensure an efficient transaction

New York (Upper East Side), NY, 10075

$35,000,000

Customer Service

William Raveis Real Estate

Phone: 888.699.8876

Contact@raveis.com

Sarah DeFlorio

VP, Mortgage Banker

William Raveis Mortgage, LLC

Phone: 347.223.0992

Sarah.DeFlorio@Raveis.com

NMLS Mortgage Loan Originator ID 1880936

5/6 (30 Yr)
Adjustable Rate Jumbo*
30 Year
Fixed-Rate Jumbo
15 Year
Fixed-Rate Jumbo
Loan Amount $28,000,000 $28,000,000 $28,000,000
Term 360 months 360 months 180 months
Initial Interest Rate** 5.500% 6.250% 6.000%
Interest Rate based on Index + Margin 8.125%
Annual Percentage Rate 6.165% 6.361% 6.183%
Monthly Tax Payment $32,158 $32,158 $32,158
H/O Insurance Payment $125 $125 $125
Initial Principal & Interest Pmt $158,981 $172,401 $236,280
Total Monthly Payment $191,264 $204,684 $268,563

* The Initial Interest Rate and Initial Principal & Interest Payment are fixed for the first and adjust every six months thereafter for the remainder of the loan term. The Interest Rate and annual percentage rate may increase after consummation. The Index for this product is the SOFR. The margin for this adjustable rate mortgage may vary with your unique credit history, and terms of your loan.

** Mortgage Rates are subject to change, loan amount and product restrictions and may not be available for your specific transaction at commitment or closing. Rates, and the margin for adjustable rate mortgages [if applicable], are subject to change without prior notice.

The rates and Annual Percentage Rate (APR) cited above may be only samples for the purpose of calculating payments and are based upon the following assumptions: minimum credit score of 740, 20% down payment (e.g. $20,000 down on a $100,000 purchase price), $1,950 in finance charges, and 30 days prepaid interest, 1 point, 30 day rate lock. The rates and APR will vary depending upon your unique credit history and the terms of your loan, e.g. the actual down payment percentages, points and fees for your transaction. Property taxes and homeowner's insurance are estimates and subject to change.