Milton Coste

Licensed Real Estate Associate Broker

(917) 416-7433
21 E 61ST Street #4F
Active For Sale Co-op

$3,000,000

$2,515 per sq ft

21 E 61ST Street #4F

Lenox Hill, Manhattan

Carlton House

MLS® #RLS20064651

RLS at REBNY

Listing by Kleier Residential Inc

2

Bedrooms

2

Baths

1,193

Sq. Ft.

1951

Year Built

Quick Summary

Bedrooms 2
Bathrooms 2
Living Area 1,193 sq ft
Year Built 1951
Ownership Co-op
Maintenance $4,790/mo
Neighborhood Lenox Hill
Floor 4 of 16

Property Highlights

  • Views: City
  • Exposure: West facing
  • Climate Control: Central Air

Property Details

Type Co-op
Ownership Stock Cooperative
Total Rooms 4
Baths 2 Full
Floor 4 of 16
View City
Exposure West
Cooling Central Air
Pets DogsOk, Yes
Year Built 1951
Living Area 1,193 sq ft
Structure Type HighRise
Basement Other
Parcel # 1376-0015-00021-000-000004F
Block/Lot 01376/0015

Description

THE CARLTON HOUSE

DESIGNER FURNISHED SPLIT TWO BEDROOM

This exceptional designer residence sits on the coveted Gold Coast of the Upper East Side at Madison Avenue and 61st Street. Reimagined by the internationally recognized Katherine Newman Design-named one of Architectural Digest's Top 100-the two-bedroom, two-bath home offers wonderful light and quiet from its southern exposures. A marble entry leads to an expansive sun-filled great room with beamed ceilings and elegant casement windows overlooking a courtyard garden. The large open chef's kitchen features Caesarstone countertops and breakfast bar, custom white lacquer cabinetry, and top-tier Miele appliances including a 5-burner gas cooktop with pot filler, oven, refrigerator, dishwasher, plus a SubZero wine refrigerator.

A private hallway opens to the primary bedroom suite, which features a double-exposure corner-cut window and two custom closets, including a walk-in. The marble primary bath is tastefully appointed with a custom double vanity, Waterworks fixtures, deep soaking tub, glass-enclosed shower and radiant heated floors. The second bedroom-currently designed as a study with sleeper sofa-is generously sized with an outfitted closet. The adjacent second bath is highlighted by a marble mosaic-tile shower and custom vanity.

Additional features include casement windows, wide-plank White Oak floors, polished nickel hardware, Miele stackable washer/dryer, custom closet interiors, and multi-zone central A/C. A private storage bin is available for purchase for $70,000.

The apartment is an excellent investment opportunity with last rent at approximately $15,000.

Originally completed in 1951 and redeveloped by Extell in 2014 into premier luxury residences, The Carlton House offers a prime Madison Avenue location near Central Park and the city's finest boutiques and restaurants including Bergdorf Goodman & Hermès, Monkey Bar, Nobu and private members club Maxime's. The full-service building provides White-Glove Doorman and Concierge, a state-of-the-art fitness center, 65-foot heated indoor pool, steam rooms, game room, storage, bike room, and lobby cold storage. Its brick-and-limestone facade was meticulously preserved to maintain its original elegance.

Features & Amenities

Interior Features

Building Other Washer Hookup In Unit

Exterior Features

Building Courtyard

Building Amenities

Bike Storage Cold Storage Common Playroom Concierge Elevators Game Room Indoor Pool Spa Hot Tub Steam Room

Building Information

Building Carlton House
Total Units 69
Stories 16
Structure HighRise

Financial Details

Maintenance $4,790/mo
Land Lease Yes

Lenox Hill offers a sophisticated blend of residential tranquility and cosmopolitan convenience. As one of the most coveted sections of the Upper East Side, the neighborhood is defined by its proximity to Central Park, world-class medical institutions, and the high-end boutiques of Madison Avenue. The housing stock here is diverse, ranging from palatial pre-war cooperatives to sleek, modern condominiums that offer sweeping views of the East River and the city skyline.

Lenox Hill Live Market Data

View Neighborhood

Active Listings

567

Median Asking Price

$1.35M

Median $/Sqft

$1,418

Avg Days on Market

N/A

New This Week

30

Price Reduced

36%

Sold (30 Days)

64

Median Sale Price

$1.55M

Live data from RLS at REBNY • Updated 3/6/26, 10:02 PM EST

Similar Listings in Lenox Hill

View All

Location

Loading map...

21 E 61ST Street #4F, Lenox Hill, New York County

MLS® ID: RLS20064651
First Listed: 12/29/2025
On Market: 12/29/2025
Price Changed: 12/29/2025
Contract Date: 12/29/2025

Listing Courtesy of Kleier Residential Inc - Samantha Kleier Forbes

Listing Contact: (212) 970-3200

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.

RLS at REBNY

RLS Data display by Keller Williams NYC. Data last updated on 3/7/2026 at 3:02 AM UTC

Buying a Co-op? Start Here

Co-op vs. Condo: Which Is Right for You?

Ownership structure, board approval, financing — the full comparison.

Read article

How to Ace Your Co-op Board Interview

What boards look for, common questions, and how to prepare.

Read article

NYC Flip Tax Guide for Sellers

What co-op flip taxes are, how they're calculated, and who pays.

Read article

HDFC Co-ops: Complete Guide

Income limits, resale caps, and how to qualify for affordable co-ops.

Read article
Call WhatsApp
Call Milton WhatsApp