SOLD FOR $3,350,000
· Closed September 29, 2023
170 E 77TH Street #9C
MLS® #RLS10895040
Listing by Douglas Elliman Real Estate
4
Bedrooms
4
Baths
2,500
Sq. Ft.
1940
Year Built
Quick Summary
Property Highlights
- Exposure: East,North facing
- Style: Prewar architecture
- Character: Pre-war building (1940)
Property Details
Listing History
| Event | Date | Price | Change |
|---|---|---|---|
| Listed | Mar 9, 2023 | $3,600,000 | - |
| Currently | Apr 30, 2026 | $3,350,000 | -6.9% |
Description
Brand New Renovation!! In this gorgeous 4 bedroom, 4 bath home with hardwood floors, custom bathrooms and a windowed chef's kitchen with a breakfast nook.
Enter into the open gallery and immediately view the double sunken living room with large windows, open city views and great northern light. The dining area is open to the living area, creating a loft like and seamless space for entertaining. The windowed and eat-in chef's kitchen is fully equipped with top-of-the-line appliances, including a 6 burner stove, wine cooler, large oven and warming drawer, built in convection microwave 48 inch refrigerator / freezer and a separate breakfast nook.
The master bedroom is a corner room with a great large corner window with northern and eastern light. There is also a wall of closets and a beautiful natural stone en-suite bathroom with double vanity, soaking tub and large glass shower. All of the other bathrooms are beautifully renovated.
In addition, the apartment includes a built in surround sound system, soundproof casement windows, hardwood floors throughout, and a washer dryer.
The Diamond House is a full service condominium centrally located on East 77th Street, close to the subway, cross-town bus and the Upper East Side's finest dining and boutiques. Built in 1942 and converted in 2007, the building amenities include a wonderful landscaped roof deck, sky-lit gym and bike room.
There is currently an assessment of $331.84 per month on the apartment.
Features & Amenities
Interior Features
Appliances
Building Information
Financial Details
About Upper East Side
View All Upper East Side ListingsThe 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 NeighborhoodActive Listings
353
Median Asking Price
$1.63M
Median $/Sqft
$1,587
Avg Days on Market
N/A
New This Week
25
Price Reduced
30%
Sold (30 Days)
33
Median Sale Price
$1.50M
Live data from RLS at REBNY • Updated 4/30/26, 10:10 AM EST
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Location
170 E 77TH Street #9C, Upper East Side, New York County • Near LEXINGTON AVENUE and 3 AVENUE
Floor Plans
Building Information
Official NYC property records for this building
Tax & Assessment
Note: Individual unit taxes may differ. Verify current tax bills with NYC DOF.
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
Listing Data
RLS® at REBNY (Real Estate Board of New York) via Trestle API. Updated in real-time.
Building Data
NYC PLUTO (Primary Land Use Tax Lot Output), NYC Department of City Planning. Updated quarterly.
Market Data
RLS® at REBNY (Real Estate Board of New York). Live data updated in real-time.
Map & Location
OpenStreetMap contributors via Leaflet. Geocoding via Nominatim.
All data is provided for informational purposes only and should be independently verified. See our Data Sources Policy for more information.
Frequently Asked Questions
Common questions about this property
The current listed common charges are $3,046 per month. Confirm the exact amount with the listing broker before making an offer.
The current listed annual property tax is $35,112, or roughly $2,926 per month. Verify the current assessment with your attorney before closing.
This property has 4 bedrooms and 4 full bathrooms.
The listed interior living area is 2,500 square feet. Verify dimensions independently during due diligence.
According to MLS records, the building was constructed in 1940, making it approximately 86 years old.
This listing is a condominium. Buyers receive a deed to their individual unit and own their space outright, subject to condo association rules.
Pets are permitted at this property. Contact the listing broker for weight limits or breed restrictions.
At the current list price of $3,350,000 for 2,500 sq ft, the asking price per square foot is approximately $1,340. This figure is for reference only and may differ from appraised or assessed values.
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) 416-7433Listing Courtesy of Douglas Elliman Real Estate - Michael Cooper
Listing Contact: (917) 770-3324
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 Data display by Keller Williams NYC. Data last updated on 4/30/2026 at 2:10 PM UTC