#RLS20007091, Serena Boardman, Listing Office: Sothebys International Realty

40 E 66th St Unit 12B New York City, NY 10065
Property details
About 40 E 66th St Unit 12B
Residence 12B at 40 East 66th Street Six Bedrooms | Six Bathrooms | Den | Powder Room | 4,913 SF A Rare Triple-Mint in Rosario Candela Condominium on Madison Avenue with Interiors by Jennifer Cohler Mason Perched on a high floor of a coveted white-glove pre-war condominium, Residence 12B at 40 East 66th Street is an extraordinary 6-bedroom, 6.5-bathroom home offering nearly 5,000 square feet of impeccably designed living space. Originally crafted by legendary architect Rosario Candela and reimagined by acclaimed designer Jennifer Cohler Mason, this rare corner residence perfectly marries timeless elegance with modern luxury. Enter through a private elevator landing into a sun-filled home with north, south, and west exposures that frame open views of Central Park, the city skyline, and iconic Upper East Side architecture. The expansive living room features dual seating areas, a wood-burning fireplace, and oversized windows overlooking Madison Avenue. A stately corner library with custom millwork and views down 66th Street adds to the home's refined charm. The formal dining room is anchored by a fireplace and detailed mantle—ideal for grand entertaining—while the adjacent chef’s kitchen is outfitted with Wolf, Miele, and Sub-Zero appliances, an oversized island with seating, and a spacious butler’s pantry. A generous den flows off the kitchen, creating a seamless space for casual living. A separate wing houses the sixth bedroom, full laundry, and additional storage. The luxurious primary suite includes a second wood-burning fireplace, a vast custom dressing room, and a spa-quality marble bath with dual vanities, radiant heated floors, and top-tier fixtures. Each of the five additional bedrooms features its own en-suite marble bathroom, ensuring comfort and privacy throughout. Notable finishes include herringbone hardwood and marble flooring, central air conditioning, custom millwork, and a Sonos sound system throughout. Located in one of the Upper East Side’s most distinguished condominiums, 40 East 66th Street offers 24-hour doorman and concierge service, a fitness center, children’s playroom, bike room, and is just one block from Central Park and steps from Madison Avenue’s finest dining, shopping, and cultural destinations.
Highlights
Summary
- Partial Bathrooms: 1
- Full Bathrooms: 6
- Appliances: Double Oven, Dryer, Dishwasher, Freezer, Refrigerator, Wine Cooler, Washer
- Flooring Type: Hardwood, Marble
- Interior: Wet Bar, Breakfast Bar, Bidet, Built-in Features, Double Vanity, Entrance Foyer, Eat-in Kitchen, Kitchen Island, Pantry, Soaking Tub, Bar, Walk-In Closet(s)
- Fireplace: Other
- Total Bedroom Count: 6
- Attached Garage: No
- Cooling: Central Air
- List Price: $17,500,000
- Price/SqFt: $3,561
- HOA Amount: $10736 Monthly
- Year Built: 1929
- Living Area: 4,913 SqFt
- MLS Number: RLS20023568
- MLS Name: RLS
- Office Name: Compass
- Office Phone: (212) 913-9058
- Listing Agent: Michael Koeneke
- Agent Phone: (858) 922-4308
©2025 The Real Estate Board of New York, Inc., All rights reserved. Website powered by IHR Technology Services.
Listing information for certain New York City properties provided courtesy of the Real Estate Board ofNew York’s Residential Listing Service (the “RLS”). The information contained in this listing has not beenverified by the RLS and should be verified by the consumer. The listing information provided here is forthe 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.
Data displayed may be a portion of, and not a complete set of all listings published in the MLS.
This advertisement does not suggest that the broker has a listing in this property or properties or that any property is currently available.
Last updated on: 5/31/2025, 4:20:31 AM Eastern. If you have any questions regarding the accuracy of this data, please contact us at help@rockethomes.com.
Get an agent. Get a mortgage. Save big.¹

$17,500,000
40 E 66th St Unit 12B
Sell your home with Rocket and save even more!
Seller rebate
0.5% sale price²
Price information
Property sales
We're sorry, we currently don't have property sales data for this listing.
Tax history
We're sorry, we currently don't have tax history data for this listing.
Nearby schools
9
P.S. 267 East Side Elementary School
Public District KG-5
0.3 mi
•213 E 63rd St
8
P.S. 183 Robert L. Stevenson School
Public District KG-5
0.6 mi
•419 E 66th St
8
P.S. 59 Beekman Hill International School
Public District KG-5
0.6 mi
•231 E 56th St # 249
School ratings are a score out of 10, where 10 is the highest and 1 is the lowest.
Neighborhood
The neighbors living near this home have an average income of $147,000. Typical income of New York City, NY residents is $200k+ annually. Residents typically live in single, no kids family. Most residents in this area have post secondary degree education.
Similar homes for sale
Frequently asked questions
About 40 E 66th St Unit 12B
The listing price of 40 E 66th St Unit 12B property is $17,500,000.
The property 40 E 66th St Unit 12B is a condo located in New York City, New York, 10065.
Active Listing: 40 E 66th St Unit 12B is For Sale (Active/New) which means the seller is accepting offers.
The nearby schools for 40 E 66th St Unit 12B are: P.S. 267 East Side Elementary School (GreatSchools Rating 9/10), P.S. 183 Robert L. Stevenson School (GreatSchools Rating 8/10), P.S. 59 Beekman Hill International School (GreatSchools Rating 8/10), Ella Baker School (GreatSchools Rating 7/10), J.H.S. 167 Robert F. Wagner School (GreatSchools Rating 8/10), Yorkville East Middle School (GreatSchools Rating 9/10), Talent Unlimited High School (GreatSchools Rating 7/10), Manhattan International High School (GreatSchools Rating 1/10), Urban Academy Laboratory High School (GreatSchools Rating 1/10).
The property at 40 E 66th St Unit 12B has 6 bedrooms and 6 full and 1 half bathrooms.
The property 40 E 66th St Unit 12B is 4,913 SqFt (source: MLS/tax record).
The year of construction for 40 E 66th St Unit 12B is 1929.
This home is located at 40 E 66th St Unit 12B in New York City, NY and zip code 10065 in the Upper East Side neighborhood. This 4,913 square foot home was built in 1929. Features: 6 bedrooms, 7 bathrooms. It has been listed on Rocket Homes since May 14, 2025 and is currently priced at $17,500,000.
In April 2025, from all listings sold in New York City, NY there were more than 210 sold above asking price, over 652 sold below and more than 792 were sold right at the asked price. The number of listings in New York City, NY increased by 1.7% between March and April 2025. In April 2025, listings were on the market for 131 days. During the same period, the median list price in this real estate market was $870,078.