Milton Coste

Licensed Real Estate Associate Broker

(917) 416-7433
400 E 70th Street #3501
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Active For Sale Condo

$3,150,000

400 E 70th Street #3501

Lenox Hill, Manhattan

The Kingsley

MLS® #RLS20100529

RLS at REBNY

Listing by Sothebys International Realty

2

Bedrooms

2.5

Baths

N/A

Sq. Ft.

1984

Year Built

Quick Summary

Bedrooms 2
Bathrooms 3 full, 1 half
Lot Size 13,883 sq ft
Year Built 1984
Ownership Condo
HOA/Common Charges $2,505/mo
Property Taxes $25,140/yr
Parking Garage
Neighborhood Lenox Hill

Property Highlights

  • Views: City
  • Exposure: East,South,West facing
  • Outdoor Space: Building Terrace, Terrace, Balcony, Rooftop

Property Details

Type Condo
Ownership Condominium
Total Rooms 5
Baths 2 Full, 1 Half
View City
Exposure East,South,West
Cooling Central Air
Pets Yes
Year Built 1984
Parking Garage Available
Structure Type HighRise
Furnished Unfurnished
Lot Size 13,883 sq ft
Parcel # 1464-1199
Block/Lot 01464/1199

Listing History

Event Date Price Change
Listed Jun 29, 2026 $3,150,000 -
Currently Jun 29, 2026 $3,150,000 -

Description

Perched high above the Upper East Side, this exceptional penthouse duplex at The Kingsley offers a rare combination of sophisticated design, dramatic city views, expansive outdoor space, and thoughtful custom craftsmanship throughout. From the moment you arrive, a gracious entry foyer sets the tone for the residence, featuring custom millwork, designer wall coverings, and elegant detailing that immediately convey a sense of refinement and warmth. The main level is designed for both comfortable daily living and effortless entertaining. A sprawling living and dining area is framed by sweeping eastern and southern exposures, filling the home with natural light throughout the day while showcasing some of the most captivating views in the neighborhood. From this elevated vantage point, the residence enjoys a dramatic panorama of the Manhattan skyline. The views are particularly spectacular at night, when the city lights create a stunning backdrop, and during seasonal celebrations when fireworks can be enjoyed from the comfort of home. A wood-burning fireplace serves as a beautiful focal point, creating an inviting atmosphere year-round. Just beyond, the reconfigured chef’s kitchen has been thoughtfully renovated to maximize functionality and storage, featuring custom cabinetry with integrated pull-out organizers, extensive counter space, a Sub-Zero refrigerator, Thermador range, wine refrigeration, and premium finishes throughout. Every detail has been carefully considered, from the custom lighting and glass accents to the seamless built-ins concealing the upgraded HVAC systems. A striking staircase with glass detailing leads both upward to the private outdoor terrace and downward to the bedroom level. The landscaped terrace provides a serene retreat above the city, complete with irrigation and ample space for outdoor dining, entertaining, or simply enjoying the panoramic skyline views and seasonal fireworks displays. The lower level offers a private bedroom wing anchored by a tranquil primary suite with spectacular open views, generous closet space, and a luxurious en-suite bath featuring dual vanities, a soaking tub, and designer finishes. The spacious second bedroom enjoys corner exposures, custom built-ins, an en-suite bathroom, and abundant natural light. An additional flexible area on this level provides excellent potential for a home office, library, media room, or guest space. Throughout the residence, custom closets and intelligently designed storage solutions maximize functionality without compromising aesthetics. This fully renovated home showcases exceptional attention to detail, including custom moldings, designer wallpaper, premium flooring, integrated speakers, bespoke built-ins, upgraded mechanical systems, and high-end finishes throughout. The result is a residence that feels both elegant and highly livable, with a level of customization rarely found in condominium living. The Kingsley is a highly regarded full-service condominium offering residents a 24-hour doorman, concierge, live-in resident manager, fitness center with panoramic city views, residents’ lounge, laundry facilities on every floor, and on-site garage parking. The building provides the convenience and service expected of one of the Upper East Side’s premier residential addresses. Ideally situated on East 70th Street, the residence is moments from the neighborhood’s renowned restaurants, boutiques, and everyday conveniences. Central Park, Carl Schurz Park, and the East River Esplanade are all nearby, while the Q train and multiple transportation options provide effortless access to the rest of Manhattan. Combining luxurious interiors, private outdoor space, extraordinary storage, and breathtaking views, this penthouse duplex presents a truly special opportunity to experience elevated Upper East Side living.

Features & Amenities

Interior Features

Entrance Foyer Elevator Common On Floor In Unit Fireplace (1)

Exterior Features

Balcony Building Balcony Private Outdoor Space Over60 Sqft Building Terrace Terrace Balcony Rooftop

Building Amenities

Elevators

Appliances

Dryer Washer Dryer Stacked Dishwasher Washer

Building Information

Building The Kingsley
Building Data View Compliance & Permits
Total Units 216
Stories 40
Structure HighRise

Financial Details

Common Charges $2,505/mo
RE Taxes $25,140/yr ($2,095/mo)

Lenox Hill occupies a residential section of the Upper East Side, defined by proximity to Central Park, major medical institutions (Memorial Sloan Kettering, Weill Cornell, Lenox Hill Hospital), and the Madison Avenue retail corridor. Housing stock ranges from large pre-war cooperatives to modern condominiums with East River and skyline views.

Lenox Hill Live Market Data

View Neighborhood

Active Listings

609

Median Asking Price

$1.38M

Median $/Sqft

$1,347

Avg Days on Market

N/A

New This Week

18

Price Reduced

36%

Sold (30 Days)

84

Median Sale Price

$1.26M

Live data from RLS at REBNY • Updated 6/29/26, 4:32 PM EST

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Location

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400 E 70th Street #3501, Lenox Hill, New York County

Floor Plans

Floor Plan 1
Floor Plan 2
Floor Plan 3
Floor Plan 4

Building Information

Official NYC property records for this building

1984
Year Built
42 years old
40
Floors
216
Residential Units
C2-8
Zoning District
Condominiums

Tax & Assessment

Assessed Value: $40,315,962
Land Value: $4,274,993
Exemptions: $716,926

Note: Individual unit taxes may differ. Verify current tax bills with NYC DOF.

Lot Area: 13,883 SF
Building Area: 201,251 SF
Built FAR: 14.5
Allowed FAR: 10

Source: NYC PLUTO (Primary Land Use Tax Lot Output), NYC Department of City Planning (data.cityofnewyork.us)

Want help estimating ownership costs or understanding building compliance? Let's discuss

Frequently Asked Questions

Common questions about this property

The current listed common charges are $2,505 per month. Confirm the exact amount with the listing broker before making an offer.

The current listed annual property tax is $25,140, or roughly $2,095 per month. Verify the current assessment with your attorney before closing.

This property has 2 bedrooms and 2 full bathrooms and 1 half bathroom.

According to MLS records, the building was constructed in 1984, making it approximately 42 years old.

This listing is a condominium. Buyers receive a deed to their individual unit and own their space outright, subject to condo association rules.

Pets are permitted at this property: Confirm with listing agent.,Building Pets Allowed Comments:Confirm with listing agent.. Contact the listing broker for weight limits or breed restrictions.

To schedule a private showing, contact Milton Coste at (917) 416-7433 or mcoste@kwnyc.com. Per REBNY guidelines effective 2025, a Buyer Representation Agreement is required before a buyer's broker can show you properties. You may attend open houses independently without one.

Have a question not answered here?

(917) 416-7433
MLS® ID: RLS20100529
First Listed: 6/29/2026
On Market: 6/29/2026
Price Changed: 6/29/2026
Contract Date: 6/29/2026

Listing Courtesy of Sothebys International Realty - Michael S Meier

Listing Contact: (917) 209-4300

Listing information for certain New York City properties provided courtesy of the Real Estate Board of New York's Residential Listing Service (the "RLS"). 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. ©2026 The Real Estate Board of New York, Inc., all rights reserved. This advertisement does not suggest that the broker has a listing in this property or properties or that any property is currently available.

Broker Commission Disclosure: Broker commissions are not set by law and are fully negotiable.

Buyer Notice: Planning to work with a buyer's broker? A Buyer Representation Agreement is required before your broker can show you properties, per REBNY/UCBA guidelines (effective 2025). You may attend open houses independently without one.

RLS at REBNY

RLS Data display by Keller Williams NYC. Data last updated on 6/29/2026 at 8:32 PM UTC

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