Milton Coste

Licensed Real Estate Associate Broker

(917) 416-7433
18 E 76th Street
Interested in this property?

$18,500,000

$1,850 per sq ft

18 E 76th Street

Upper East Side, Manhattan

MLS® #RLS20080900

RLS at REBNY

Listing by Nest Seekers LLC

8

Bedrooms

9.5

Baths

10,000

Sq. Ft.

1881

Year Built

Quick Summary

Bedrooms 8
Bathrooms 9 full, 3 half
Living Area 10,000 sq ft
Lot Size 2,247.52 sq ft
Year Built 1881
Ownership None
Property Taxes $159,929/yr
Neighborhood Upper East Side

Property Highlights

  • Outdoor Space: Patio, Terrace, Balcony
  • Fireplace: 8 fireplaces
  • Style: Prewar architecture

Property Details

Type Single Family Residence
Ownership None
Total Rooms 22
Baths 8 Full, 3 Half
Heating Fireplaces
Cooling Window Units
Pets Yes
Cross Street Fifth Avenue/Madison Avenue
Year Built 1881
Living Area 10,000 sq ft
Architectural Style Prewar
Structure Type Townhouse
Lot Size 2,247.52 sq ft
Parcel # 1390-0061
Block/Lot 1390/0061

Description

This Upper East Side limestone mansion is exceptional with much of its magnificent original details lovingly preserved. 18 East 76th is ideally located next door to the chic Surrey Hotel and Central Park between 5th and Madison Avenues, with the legendary Carlyle Hotel around the corner. Originally built in 1881 as a Victorian brownstone, Henry Block purchased it in 1906. He hired architect Henry Hertz to upgrade the house to the Beaux-Arts beauty it is today, the style du jour. Measuring 22’ wide and 100’ deep, The Block House was and remains absolutely ideal for entertaining! This is a unique opportunity to own a truly remarkable property. Welcome to Manhattan’s Gilded Age! Walk up the limestone stairs passing through the foyer into the impressive front parlor with Corinthian columns adorning the walls upholding the soaring 14’ornate ceilings. You are greeted by a monumental fireplace topped with a massive mirror opposite a beautiful wrought iron staircase. The oak herring bone floors with marquetry are in remarkably good condition. French mirrored paned doors open into an intimate sitting room with 2 tall French windows facing E76th with monumental mirrors on both walls, and a marble fireplace. Leaving this room, and walking south through a wide corridor, you arrive in the rear parlor with another massive marble fireplace and mirror. A dramatic crystal chandelier is the crown jewel. Passing through the second parlor, you step into a generously sized office. An arched window measuring the entire west wall, with its own window seat brings in light. A discreet locked door in the wall paneling leads to a secret office pantry and half bath. Descending one flight from the street, with a separate entrance, the garden apartment is a spacious two bedroom, currently the servants quarters. You could take the European sized elevator to the third floor to enter a glorious living room with high ceilings, and a black marble fireplace. There are 3 tall mahogany encased French windows with limestone balustrades overlooking the treetops of East 76th Street. Turn south through a mahogany mirrored- cabinet hall with pocket doors on either end. Enter the formal dining room with a white marble fireplace, topped by yet another massive mirror. The dining room flows to an area with a west bay window, and powder room leading to the full kitchen. Create gourmet meals with the chef’s sized Wolf stove. The third floor hosts a large primary bedroom with high ceilings and ensuite bath. There are 3 tall arched French windows facing E 76th, and a corridor of tall wall compartmented closets. Two additional bedrooms on the 4th floor are in the south end of the house, one with a white fireplace, and both with tall American windows. The third floor has 2 more bathrooms, one in marble with a bidet, and the other has a jacuzzi. The Fifth floor has an additional large bedroom facing north with ensuite bath. There is an additional full bathroom in the hall. Facing south, is another dining living area with an adjacent roof terrace, a galley kitchen, and a home office. The current owner utilizes 4 bedrooms plus the 2 in the maids quarters. Technically this is an 8 bedroom and 8.5 bathroom home in 10,000 square feet with 7 fireplaces, and 3 kitchens including the servants quarters. The next owner will likely want to give this fantastic property some additional tender loving care with some contemporary updating while leaving its splendid magnificence in tact!

Features & Amenities

Interior Features

See Remarks Fireplace (8)

Exterior Features

Balcony Building Roof Deck Private Outdoor Space Under60 Sqft Patio Terrace Balcony

Building Amenities

Elevators

Building Information

Stories 5
Structure Townhouse
Style Prewar

Financial Details

RE Taxes $159,929/yr ($13,327/mo)

The Upper East Side remains the gold standard for classic New York elegance. Known for 'Museum Mile' and its quiet, 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

312

Median Asking Price

$1.40M

Median $/Sqft

$1,479

Avg Days on Market

N/A

New This Week

9

Price Reduced

24%

Sold (30 Days)

31

Median Sale Price

$1.48M

Live data from RLS at REBNY • Updated 4/2/26, 8:25 AM EST

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Location

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18 E 76th Street, Upper East Side, New York County • Near Fifth Avenue/Madison Avenue

Floor Plans

Floor Plan
MLS® ID: RLS20080900
First Listed: 4/2/2026
On Market: 7/5/2024
Price Changed: 4/2/2026
Contract Date: 7/5/2024

Listing Courtesy of Nest Seekers LLC - Melissa Alonso

Listing Contact: (646) 403-7311

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.

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RLS at REBNY

RLS Data display by Keller Williams NYC. Data last updated on 4/2/2026 at 12:25 PM UTC

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