Milton Coste

Licensed Real Estate Associate Broker

(917) 416-7433
400 E 56TH Street #31K
Closed For Sale Co-op

$500,000

$728 per sq ft

400 E 56TH Street #31K

Sutton Place, Manhattan

Plaza 400

MLS® #RLS20038707

RLS at REBNY

Listing by Coldwell Banker Warburg

Studio

1

Bath

687

Sq. Ft.

1969

Year Built

Quick Summary

Bedrooms Studio
Bathrooms 1
Living Area 687 sq ft
Year Built 1969
Ownership Co-op
Maintenance $1,925/mo
Parking Garage
Neighborhood Sutton Place
Floor 31 of 40

Property Highlights

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

Property Details

Type Co-op
Ownership Stock Cooperative
Total Rooms 2
Baths 1 Full
Floor 31 of 40
View City
Exposure East
Cooling Central Air
Pets Yes
Year Built 1969
Living Area 687 sq ft
Parking Garage Available
Structure Type HighRise
Basement Other
Block/Lot 01367/0001

Description

Welcome to Apartment 31K - an oversized high-floor alcove studio that can easily be converted into a one-bedroom, with spectacular views.

This bright home features an open layout with a generous alcove that lends itself perfectly to a separate sleeping area. There are five large closets, two adjacent ones that can be combined to create a sizable space - ideal for a home office. The apartment is in good condition and ready for your personal touch. With ample storage, a flexible layout, and breathtaking views, 31K is a rare opportunity to create your dream home in the sky.

Plaza 400 is a self-managed, full-service cooperative located in the heart of Sutton Place.

Residents enjoy a wide range of amenities, including a brand-new Sky Top Lounge, a heated rooftop pool with sweeping city views, and a children's playroom-all located on the top floor. Additional features include a fully equipped fitness center with yoga/stretching studio, professional-grade laundry facilities, bicycle storage, and concierge services. A 24-hour doorman, on-site security, and live-in superintendent ensure attentive service and peace of mind.

The building is pet-friendly and permits pieds- -terre, co-purchasing, guarantors, and parents purchasing for children. Monthly maintenance includes all utilities. There is a 2% flip tax, paid by the buyer.

Conveniently located near dining, shopping, parks, and multiple transportation options, Plaza 400 offers a refined and service-oriented lifestyle in one of Manhattan's most established neighborhoods.

Some of the photos are virtually staged for presentation purposes only.

Features & Amenities

Interior Features

Building Other

Exterior Features

Building Roof Deck

Building Amenities

Bike Storage Common Playroom Concierge Indoor Pool

Building Information

Building Plaza 400
Total Units 628
Stories 40
Structure HighRise

Financial Details

Maintenance $1,925/mo
Original Price $515,000
Sale Price $500,000
Previous Price $515,000

Sutton Place is a secluded and prestigious residential enclave known for its quiet elegance and stunning East River views. This neighborhood offers a 'small-town' feel within the city, defined by its private parks and classic architecture. The housing stock is predominantly composed of grand, white-glove cooperatives, many of which feature expansive layouts and historic details that appeal to discerning buyers seeking privacy.

Sutton Place Live Market Data

View Neighborhood

Active Listings

220

Median Asking Price

$1.20M

Median $/Sqft

$1,145

Avg Days on Market

N/A

New This Week

8

Price Reduced

35%

Sold (30 Days)

13

Median Sale Price

$1.09M

Live data from RLS at REBNY • Updated 2/20/26, 8:07 AM EST

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Location

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400 E 56TH Street #31K, Sutton Place, New York County

MLS® ID: RLS20038707
First Listed: 7/23/2025
On Market: 7/23/2025
Price Changed: 1/28/2026
Closed: 1/27/2026
Contract Date: 7/23/2025

Listing Courtesy of Coldwell Banker Warburg - Andrea Blumenthal

Listing Contact: (917) 224-6999

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 2/20/2026 at 1:07 PM UTC

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