Milton Coste

Licensed Real Estate Associate Broker

(917) 416-7433
18-20 E 84TH Street #PH6A
Closed For Sale Co-op

$1,295,000

18-20 E 84TH Street #PH6A

Upper East Side, Manhattan

MLS® #RLS10783621

RLS at REBNY

Listing by Serhant

2

Bedrooms

1

Bath

N/A

Sq. Ft.

1890

Year Built

Quick Summary

Bedrooms 2
Bathrooms 1
Lot Size 5,824 sq ft
Year Built 1890
Ownership Co-op
Maintenance $2,463/mo
Neighborhood Upper East Side
Floor 6 of 6

Property Highlights

  • Exposure: North facing
  • Outdoor Space: Building Terrace, Terrace, Balcony
  • Style: Prewar architecture

Property Details

Type Co-op
Ownership Stock Cooperative
Total Rooms 5
Baths 1 Full
Floor 6 of 6
Exposure North
Pets Yes
Year Built 1890
Architectural Style Prewar
Lot Size 5,824 sq ft

Listing History

Event Date Price Change
Listed Aug 9, 2021 $1,295,000 -
Currently May 10, 2026 $1,295,000 -

Description

Hidden Gem. Private Rooftop. Just Off Central Park. A one-of-a-kind gut-renovated duplex nestled in a 19th Century Georgian mansion, this special 2-bedroom, 1-bathroom co-op is a unique blend of light, modern luxury, and classic New York City charm. The spacious rooftop sanctuary possesses lovely neighborhood views and is ideal for sun lounging, cloud gazing, entertaining, al fresco dining, and urban gardening. On the lower level of the home, the entryway flows past a lovely set of stairs and into an open-concept living, dining, and kitchen area saturated with northern light. Beautiful hardwood floors run throughout the space, and custom built-ins offer convenient storage solutions. The kitchen is equipped with custom cabinets and shelves, sleek stone countertops, a glass tile backsplash, an eat-in peninsula, and a suite of high-end stainless steel appliances. The primary bedroom is large enough for a king-size bed, while the second bedroom can easily accommodate a queen. Both bedrooms have easy access to a luxurious bathroom with custom tile work, contemporary fixtures and finishes, a walk-in shower, and a separate soaking tub. The upper level of the home features a cozy sleeping loft, a wall of storage closets, and access to an outdoor escape in the heart of the Upper East Side. 18-20 East 84th Street is a landmarked mansion-turned-co-op located less a block from Central Park. The building has a part-time doorman and an elevator, and it is moments from The Metropolitan Museum of Art and The Guggenheim. Plenty of dining and shopping options are available on Madison and Lexington Avenues. Nearby subway lines include the 4/5/6. Pets welcome. Subletting is Allowed.

Features & Amenities

Interior Features

Building Washer Dryer Install Allowed Common Area

Exterior Features

Balcony Building Terrace Terrace Balcony

Building Information

Building Data View Compliance & Permits
Total Units 25
Stories 6
Style Prewar

Financial Details

Maintenance $2,463/mo
Sale Price $1,295,000

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

342

Median Asking Price

$1.82M

Median $/Sqft

$1,585

Avg Days on Market

N/A

New This Week

20

Price Reduced

29%

Sold (30 Days)

39

Median Sale Price

$1.59M

Live data from RLS at REBNY • Updated 5/10/26, 8:12 AM EST

Similar Listings in Upper East Side

View All

Location

Loading map...

18-20 E 84TH Street #PH6A, Upper East Side, New York County

Floor Plans

Floor Plan 1

Building Information

Official NYC property records for this building

1900
Year Built
126 years old
6
Floors
25
Residential Units
C5-1
Zoning District
Elevator Apartments Historic District: Metropolitan Museum Historic District

Tax & Assessment

Assessed Value: $2,979,450
Land Value: $499,500
Exemptions: $4,580

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

Lot Area: 5,824 SF
Building Area: 23,948 SF
Built FAR: 4.11
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 $2,463 per month. Confirm the exact amount with the listing broker before making an offer.

This property has 2 bedrooms and 1 full bathroom.

According to MLS records, the building was constructed in 1890, making it approximately 136 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. 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: RLS10783621
First Listed: 8/9/2021
Price Changed: 8/9/2021
Closed: 5/3/2022
Contract Date: 8/9/2021

Listing Courtesy of Serhant - Ryan Serhant

Listing Contact: (646) 480-7665

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 5/10/2026 at 12:12 PM 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

HDFC Co-ops: Complete Guide

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

Read article

NYC Mansion Tax: 2026 Guide

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

Read article

Interested in this property?

Your info is secure and never shared.

View Active Listings Call Milton