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21 E 87th St #6B, New York, NY, 10128

4beds
4baths
--sqft
$5,700,000
--price/sqft
$33,755/moest. monthly cost
$1,350,200/yrincome needed

About This Home

GRAND CORNER HOME IN CARNEGIE HILL An exceptional offering of a majestic, sun-drenched, all exterior-facing corner classic 9-into-8-room home in one of Carnegie Hill's most sought-after Emery Roth pre-war full-service luxury cooperatives. The B-line residences at 21 East 87th Street seldom come to market and are prized for their unparalleled light, grand proportions and a perfectly balanced layout that lives as beautifully as it entertains, as demonstrated in Residence 6B. This is a once in a generation opportunity to create a uniquely glorious home on a coveted park block surrounded by the best that life on the Upper East Side has to offer. Enter off of a semi-private landing and be welcomed into a gracious entry gallery from which both the entertaining spaces and private quarters seamlessly flow. Before you is a grand living room in which warm eastern sun pours through oversized double-hung windows overlooking Madison Avenue. At approximately 25 feet deep, the living room feels both expansive and inviting, anchored by a handsome decorative marble fireplace and framed by high beamed ceilings carried throughout the home. Immediately adjacent to the living room is the formal dining room, also grand in scale and adorned by the sunlight and views of Madison Avenue. Accessed through an elegant pair of French doors, it joins the living room in creating a flawless space for entertaining at scale. Rare in pre-war design, the kitchen enjoys sun-filled exterior avenue exposures as well. Having absorbed a second service room, the double-windowed eat-in kitchen is massive, offering a space that's primed for a top-tier re-imagining of an enviable dining kitchen with ample room for every top-of-the-line appliance you might want, abundant counter space, vast storage, and a casual dining area as well. It has an adjacent pantry with a prep sink on one side and a sizable east-facing staff room/home office with an en-suite full bathroom on the other. The private quarters are all ideally arranged on the south side of the apartment, crowned by a king-sized corner primary bedroom suite bathed in southeastern sun, with a windowed 4-fixtured primary bathroom and a large dressing room. The bedroom adjacent the primary suite faces south over 87th Street and is currently in use as a library serviced by an en-suite windowed full bathroom with a stall shower. There are two more sizable bedrooms with share a windowed full bathroom with a stall shower. Both bedrooms face south over East 87th Street, and each of them has its own large walk-in closet. Built in 1927 and conceived by famed architect Emery Roth, 21 East 87th Street is one of Carnegie Hill's most beloved buildings. A full-time doorman and live-in resident manager provide polished and attentive service, and the building features a gym, central laundry, bicycle storage and private storage for each residence. Residents enjoy immediate access to Central Park, Museum Mile and the finest cultural and educational institutions, restaurants, entertainment and shopping that New York City has to offer. Pets are welcome. There is a flip tax of 2% of the purchase price, and financing is allowed up to 65%. There is a monthly capital assessment in the amount of $500.64 through 2026.

Getting Around

97
WalkingWalker's Paradise
100
TransitRider's Paradise
77
BikeVery Bikeable

Schools

10/10
Ps 6 Lillie D BlakeGrades PK-50.3 mi
8/10
Jhs 167 Robert F WagnerGrades 6-80.7 mi

Construction

Condition

  • Year built: 1927

Type & Style

  • Home type: Cooperative
  • Property subType: Coop

Interior

Appliances

  • Appliances included: Dishwasher,Washer/Dryer
  • Laundry features: Inside

Bedrooms & Bathrooms

  • Bedrooms: 4
  • Bathrooms: 4
  • Full bathrooms: 4

Features

  • Flooring: Hardwood
  • Fireplace features: Decorative,Gas
  • Fireplace: Yes

Property

Details

  • Special condition: Resale

Features

  • Has view: Yes
  • View description: City

Climate Risk is Financial Risk

Every home has a financial story beyond the listing price. Below, you’ll see the climate risks that could affect this property — and in Bills & Affordability, how those risks may influence repairs, insurance, utilities, and long-term value.

Biggest Threats for This Home

  • Heat Wave
    Heat WaveRelatively High
  • Cold Wave
    Cold WaveModerate
  • Inland Flooding
    Inland FloodingModerate
  • Strong Wind
    Strong WindModerate
  • Winter Weather
    Winter WeatherModerate
  • Tsunami
    TsunamiInsufficient Data

How This Home’s Risks Compare

Heat Wave
Cold Wave
Inland Flooding
Strong Wind
Winter Weather
Tsunami

FEMA Declared Disasters in New York County and New York

Flood
Severe Storm

Understanding the Costs

Financial advisors generally recommend spending no more than 30% of your gross household income on housing costs. In practice, many households stretch to 35% or beyond — especially in high-cost markets.

Estimated Costs Today

MonthlyAnnual
Mortgage $28,822$345,864
Home Insurance *$1,315$15,780
Property Taxes $3,372$40,464
Electricity $246$2,954
Total$33,755$405,060
*Does not include cost of any FAIR Plan premiums

Income You'd Need if You Spent...

35% on housing$1,157,314/yr
40% on housing$1,012,650/yr
45% on housing$900,133/yr

New York FAIR Plan Programs

New York Property Insurance Underwriting Association

Covered
WildfireWildfire
HailHail
WindWind
Visit Website →
Current Policies
Residential: 20,669Commercial: 1,556
Total Premiums$32.27M
Total Exposure$7.63B

How Costs Could Change Over Time

Climate risk is quickly impacting all of the major home ownership costs. Adjust the growth rates and percentage of income spent on housing below to see how your housing costs could change over the next 10 years — and what income you'd need to keep up.

Insurance Growth Rate5-year average: 2.0%
2.0%
0%30.0%
Electricity Growth Rate10-year average: 7.1%
7.1%
0%15.0%
Property Taxes Growth Rate2-year average: 1.0%
1.0%
0%15.0%
Income Spent on Housing
30%
30%45%

Comparing Against the Market

Price Per Sq Ft

--This listing

vs Other Active Listings

Avg $/sqft

ZIP 10128$1,721
New York County$1,487

vs Homes Sold Last Month

Median $/sqft

ZIP 10128$1,868
New York County$1,203

Current Market Trends

Median Price Per Square Foot

The median price per square foot of homes sold in this area each month. Compare this to this listing's price per square foot to gauge whether the home is priced in line with recent sales.

Historicals for This Listing

Zestimate History ($/sqft)

Price History

DateEventPrice
2026-05-12Price change$5,700,000
2026-04-07Price change$5,995,000
2026-02-05Listed for sale$6,195,000

For Sale by Agent

AgentDaniella Schlisser
BrokerageBrown Harris Stevens

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