Milton Coste

Licensed Real Estate Associate Broker

(917) 416-7433

This apartment is in contract

It is not available for showings. Milton can tell you what else is for sale in this building and in the neighborhood.

1155 Park Avenue #10SW

Pending · Listing by Sothebys International Realty

1155 Park Avenue #10SW

Upper East Side, Manhattan

$9,750,000

Pending For Sale • Co-op

$9,750,000

1155 Park Avenue #10SW

Upper East Side, Manhattan

MLS® #RLS20085701

RLS at REBNY

Listing by Sothebys International Realty

5
Bedrooms
4.5
Baths
N/A
Sq. Ft.
1915
Year Built

Quick Summary

Bedrooms 5
Bathrooms 5 full, 1 half
Lot Size 17,400 sq ft
Year Built 1915
Ownership Co-op
Maintenance $12,581/mo
Neighborhood Upper East Side
Floor 10 of 14

Property Highlights

  • Views: City, Skyline
  • Exposure: East,North,South,West facing
  • Fireplace: 1 fireplace

Property Details

Type Co-op
Ownership Stock Cooperative
Total Rooms 11
Baths 4 Full, 1 Half
Floor 10 of 14
View City, Skyline
Exposure East,North,South,West
Cooling Central Air, Other
Pets Yes, CatsOk, DogsOk
Year Built 1915
Structure Type MultiFamily
Flooring Hardwood
Furnished Unfurnished
Lot Size 17,400 sq ft
Parcel # 1520-0004-01155-000-00010SW
Block/Lot 01520/0004

Listing History

Event Date Price Change
Listed Apr 21, 2026 $9,750,000 -
Currently Oct 3, 2026 $9,750,000 -

Description

Perfectly positioned on a high floor, this fully renovated 11-room corner apartment at 1155 Park Avenue has five-bedrooms, four-and-a-half baths, and benefits from abundant sunlight and open exposures over Park Avenue and East 92nd Street. A semi-private elevator landing enters into an expansive gallery that highlights the apartment’s gracious room proportions and captivating ceiling heights. The oversized living room faces west and has scale that allows for several seating areas. Three oversized windows overlooking Park Avenue allow for sunlight throughout the day. A set of pocket-doors leads to the adjacent formal dining room which has open exposures from two large, west-facing windows overlooking Park Avenue. The apartment’s suite of entertaining rooms is completed by a library located at the end of the gallery. The well-proportioned corner library has open southern and eastern exposures from three large windows. The gallery also has a well-placed powder room. The apartment’s windowed, eat-in kitchen is accessed through a set of double-doors to the left of the gallery. The kitchen is outfitted with elevated appliances, including a Wolf range and wall oven as well as a Sub-Zero refrigerator in addition to extensive custom cabinetry and ample counterspace throughout. Completing the house-like feeling, is the apartment’s den adjacent to the kitchen. This versatile space works well for casual entertaining or relaxation and features custom millwork bookcases and storage. Privately located apart from the apartment’s four additional bedrooms, the serene primary bedroom has two walk-in closets in addition to millwork storage. It also features two large windows with open southern and western exposures. The primary bedroom also has a renovated ensuite bathroom with a double-sink vanity. The apartment’s four additional bedrooms are located along an expansive hallway. The first bedroom enjoys large south facing windows, two closets, with one being a walk-in, as well as access to a renovated shared bath that connects to the second bedroom. The second bedroom also has large south facing windows as well as walk-in closet. The third bedroom along this hallway is generously scaled and benefits from large south facing windows, two walk-in closets, as well as an ensuite, renovated windowed bathroom. The remaining bedroom has two north facing windows as well as easy access to a renovated hall bath. Additional features of this fully renovated apartment include a combination of central and through-the-wall air conditioning, 10’2 ceilings, as well as a dedicated, windowed laundry room ideally located along the bedroom hallway. Built in 1915 by Bing & Bing, 1155 Park Avenue is a sought-after Robert T. Lyons designed prewar cooperative in the heart of Carnegie Hill. Shareholders benefit from a full-time doorman, a live-in Resident Manager, a fitness center, bicycle storage, laundry facilities, and private storage. The cooperative permits pets, 40% financing, and there is a 2.5% flip tax.

Features & Amenities

Interior Features

Entrance Foyer Eat In Kitchen High Ceilings Walk In Closets Building Washer Dryer Install Allowed Common On Floor Common Area In Unit Flooring: Hardwood Fireplace (1)

Building Amenities

Bike Storage Elevators Fitness Center

Appliances

Dryer Dishwasher Range Refrigerator Washer

Building Information

Building Data View Compliance & Permits
Total Units 60
Stories 14
Structure MultiFamily

Financial Details

Maintenance $12,581/mo

The Upper East Side remains the gold standard for classic New York elegance. Known for 'Museum Mile' and its low-traffic, tree-lined streets, the neighborhood offers a refined lifestyle away from the midtown bustle. While famous for its historic cooperatives, the area has seen a recent surge in ultra-luxury new construction condos, particularly along the Second Avenue Subway corridor, making it a top choice for both traditionalists and modern buyers.

Upper East Side Live Market Data

View Neighborhood

Active Listings

316

Median Asking Price

$1.77M

Median $/Sqft

$1,550

Avg Days on Market

N/A

New This Week

20

Price Reduced

27%

Sold (30 Days)

48

Median Sale Price

$1.48M

Live data from RLS at REBNY • Updated 10/3/26, 5:42 AM EST

Similar Listings in Upper East Side

View All

Location

Loading map...

1155 Park Avenue #10SW, Upper East Side, New York County

Floor Plans

Floor Plan 1

Building Information

Official NYC property records for this building

1914
Year Built
112 years old
14
Floors
51
Residential Units
R10
Zoning District
Elevator Apartments Historic District: Expanded Carnegie Hill Historic District

Tax & Assessment

Assessed Value: $23,099,400
Land Value: $1,935,000
Exemptions: $81,830

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

Lot Area: 16,482 SF
Building Area: 166,596 SF
Built FAR: 10.11
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 monthly maintenance are $12,581 per month. Confirm the exact amount with Milton Coste before making an offer.

The current listed annual property tax is $0, or roughly $0 per month. Verify the current assessment with your attorney before closing.

This property has 5 bedrooms and 4 full bathrooms and 1 half bathroom.

According to MLS records, the building was constructed in 1915, making it approximately 111 years old.

This listing is a co-op (stock cooperative). Buyers purchase shares in a corporation rather than real property, and the board must approve all sales.

Pets are permitted at this property: UnitYes,Building Pets Allowed Comments:Yes, upon approval.. Contact Milton Coste for weight limits or breed restrictions.

To schedule a private showing, contact Milton Coste at (917) 416-7433 or milton@miltoncoste.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: RLS20085701
First Listed: 4/21/2026
On Market: 4/21/2026
Price Changed: 4/21/2026
Pending Since: 5/11/2026
Contract Date: 4/21/2026

Listing Courtesy of Sothebys International Realty - Amanda Cannon Goldworm

Listing Contact: (212) 606-7660

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 10/3/2026 at 9:42 AM UTC

See it in person

Upper East Side Market Update

48 sales last 30 days · $1.77M median · 6.6 months supply

Read Full Report

New listings in this neighborhood

Quick Facts

Status Pending
Type Co-op Neighborhood Upper East Side Borough Manhattan
County New York
Floor 10 of 14
Year Built 1915
First Listed 4/21/2026
Maintenance $12,581/mo

Monthly Costs Estimate

Down Payment 20%

$1,950,000

Interest Rate Loading...

Source: Freddie Mac PMMS

Loan Term 30 years

Est. Monthly Payment

$0

Principal & Interest $0
PMI (under 20% down) $0
Maintenance $12,581
Total Monthly $0

Estimates only. Consult a lender for exact figures.

Mansion tax applies at this price point

New York State charges the buyer a mansion tax on residential purchases at $1,000,000 or more. At this asking price the tier is $5M to $9,999,999 at 2.25%, applied to the whole purchase price. It is due in cash at closing and cannot be financed.

Estimated mansion tax at asking

$219,375

Run the numbers on a different offer price

Estimate based on the asking price. Confirm your own obligation with your real estate attorney.

Back to Search

Find more properties

Buying a Co-op? Start Here

NYC Mansion Tax: 2026 Guide

How the tiered mansion tax works for purchases over $1M.

Read article

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

Ask about this building

This apartment is off the market. Tell Milton what you are looking for and he will send what is for sale in this building and in Upper East Side.

Your info is secure and never shared.

View Active Listings Call Milton