Milton Coste

Licensed Real Estate Associate Broker

(917) 416-7433
170 E 77th Street #7-C

For Sale · Listing by William Raveis New York City LLC

170 E 77th Street #7-C

Upper East Side, Manhattan

$1,650,000

Interested in this property?
Active For Sale • Condo

$1,650,000

$1,375 per sq ft

170 E 77th Street #7-C

Upper East Side, Manhattan

MLS® #RLS20119537

RLS at REBNY

Listing by William Raveis New York City LLC

2
Bedrooms
2
Baths
1,200
Sq. Ft.
1942
Year Built

Quick Summary

Bedrooms 2
Bathrooms 2
Living Area 1,200 sq ft
Year Built 1942
Ownership Condo
HOA/Common Charges $1,643.08/mo
Property Taxes $19,823.52/yr
Neighborhood Upper East Side
Floor 7 of 11

Property Highlights

  • Exposure: North,West facing
  • Style: Prewar architecture
  • Climate Control: Wall Units

Property Details

Type Condo
Ownership Condominium
Total Rooms 5
Baths 2 Full
Floor 7 of 11
Exposure North,West
Cooling Wall Units
Pets Yes
Cross Street Third Avenue/Lexington Avenue
Year Built 1942
Living Area 1,200 sq ft
Architectural Style Prewar
Structure Type None
Block/Lot 1411/7502

Listing History

Event Date Price Change
Listed Oct 6, 2026 $1,650,000 -
Currently Oct 7, 2026 $1,650,000 -

Description

Thoughtfully renovated and move-in ready, this two-bedroom, two-bath residence at The Diamond House, 170 East 77th Street, pairs classic character with modern finishes in the heart of the Upper East Side. An inviting entryway opens to a spacious foyer overlooking the gracious step-down living room, offering flexibility as a formal dining area, home office, or play space. Beamed ceilings, crown molding, custom cove and recessed lighting, and hardwood floors give the space a warm, polished feel. A broad living room window brings in natural light, while the distinct levels create a natural separation between work, relaxation, and entertaining. The windowed kitchen features warm wood cabinetry, Carrara marble–style quartz countertops and backsplash, Sub-Zero refrigerator, wine cooler, a GE Profile range and microwave, new Bosch dishwasher, and an LG washer/dryer combo unit. The spacious primary bedroom comfortably accommodates a king-size bed and features a beautiful corner bay window, and a windowed marble bath with a soaking tub, new vanity, and updated fixtures. The queen-size second bedroom includes an outfitted closet, with an adjacent bath offering a glass-enclosed shower, vanity, and updated fixtures. A separately deeded basement storage unit transfers with the apartment. The Diamond House, a 1940s condominium, offers a 24-hour doorman, live-in resident manager, gym, roof deck, and separate laundry room.

Features & Amenities

Interior Features

Dining Area Entrance Foyer Kitchen Window Building Washer Dryer Install Allowed Common Area In Unit New Windows

Exterior Features

Building Storage Building Roof Deck

Building Amenities

Elevators

Appliances

Dryer Washer

Building Information

Building Data View Compliance & Permits
Stories 11
Structure None
Style Prewar

Financial Details

Common Charges $1,643.08/mo
RE Taxes $19,823.52/yr ($1,652/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

322

Median Asking Price

$1.67M

Median $/Sqft

$1,491

Avg Days on Market

N/A

New This Week

15

Price Reduced

28%

Sold (30 Days)

53

Median Sale Price

$1.57M

Live data from RLS at REBNY • Updated 10/6/26, 9:30 PM EST

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Location

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170 E 77th Street #7-C, Upper East Side, New York County • Near Third Avenue/Lexington Avenue

Floor Plans

Floor Plan 1

Building Information

Official NYC property records for this building

1930
Year Built
96 years old
2
Floors
2
Residential Units
R3-1
Zoning District
Two Family Dwellings

Tax & Assessment

Assessed Value: $117,960
Land Value: $27,180
Exemptions: $0

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

Lot Area: 4,373 SF
Building Area: 2,460 SF
Built FAR: 0.56
Allowed FAR: 0.75

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 common charges are $1,643.08 per month. Confirm the exact amount with Milton Coste before making an offer.

The current listed annual property tax is $19,823.52, or roughly $1,652 per month. Verify the current assessment with your attorney before closing.

This property has 2 bedrooms and 2 full bathrooms.

The listed interior living area is 1,200 square feet. Verify dimensions independently during due diligence.

According to MLS records, the building was constructed in 1942, making it approximately 84 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 Milton Coste for weight limits or breed restrictions.

At the current list price of $1,650,000 for 1,200 sq ft, the asking price per square foot is approximately $1,375. 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 [email protected]. 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: RLS20119537
First Listed: 10/6/2026
On Market: 10/6/2026
Price Changed: 10/6/2026
Contract Date: 9/28/2026

Listing Courtesy of William Raveis New York City LLC - Stephanie G Harnisch

Listing Contact: (646) 770-6092

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 10/7/2026 at 1:30 AM UTC

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Milton Coste - NYC Real Estate Broker

Milton Coste

Licensed Real Estate Associate Broker

Keller Williams NYC

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Sale history, taxes, violations and comps for this unit

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Upper East Side Market Update

53 sales last 30 days · $1.67M median · 6.1 months supply

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Quick Facts

Status Active Type Condo Neighborhood Upper East Side Borough Manhattan
County New York
Floor 7 of 11
Year Built 1942
First Listed 10/6/2026
Style Prewar
Living Area 1,200 sqft
Common Charges $1,643.08/mo
Annual Tax $19,823.52

Monthly Costs Estimate

Down Payment 20%

$330,000

Interest Rate Loading...

Source: Freddie Mac PMMS

Loan Term 30 years

Est. Monthly Payment

$0

Principal & Interest $0
PMI (under 20% down) $0
Common Charges $1,643.08
Est. Taxes $1,652
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 $1M to $1,999,999 at 1.00%, applied to the whole purchase price. It is due in cash at closing and cannot be financed.

Estimated mansion tax at asking

$16,500

Run the numbers on a different offer price

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

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