Date
Details
Price
Change
Source
2/10/2026
Listed
$18,000,000
—
MLS
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
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1/19
$18,000,000
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1/19
Property Description
21 East 81st Street presents a rare and highly unique opportunity on one of the Upper East Side's most coveted townhouse blocks, perfectly positioned between Fifth and Madison Avenues. Built in 1899 by renowned architects Welch, Smith & Provot, this 20-foot-wide Neoclassical limestone townhouse spans approximately 8,600 square feet across four stories, crowned by a mansard roof. Grand ceiling heights, significant original architectural detail, and wood-burning fireplaces in nearly every room define the interiors, while an elevator services all levels. Currently configured as a two-family residence-an owner's quadraplex with income producing duplex -the home offers exceptional flexibility and long-term potential which can also can easily be converted to a single family.
Full Property Details
Full Property Details for 21 E 81st St
General
- Price: $18,000,000
- Taxes: $116,184
- Status: Active
- Type: Duplex
- Source: REBNY
- MLS ID: RLS20071275
- Updated: 2/22/2026
- Added to Site: 16 day(s) ago
Interior
- Number of Rooms: 18
- Interior Features: Crown Molding, Entrance Foyer, Eat-in Kitchen, High Ceilings, Pantry, Walk-In Closet(s)
- Fireplace: Yes
- Number of Fireplaces: 1
- Fireplace(s): Other
- Appliances: Dishwasher, Refrigerator, Washer
- Furnishings: Unfurnished
- Flooring: Hardwood
Rooms
Bathrooms
- Total Bathrooms: 6
- Full Bathrooms: 5
- Half Bathrooms: 1
Bedrooms
- Total Bedrooms: 6
Other Rooms
- Laundry: In Unit, See Remarks
Exterior
- Exterior Features: Private Outdoor Space Over 60 Sqft
- Porch/Patio/Deck: Terrace, Rooftop
Location
- County: New York
- Subdivision: Upper East Side
Structural Information
- Structure Type: Duplex
- Stories/Levels: 5
- Square Feet: 8,538
- Living Area: 8,538 Sq. Ft.
- Year Built: 1899
- Other Struct. Feat.: Elevator(s)
Lot Features
- Lot Dimensions: 19.830000 x 102.170000
Financial Considerations
- Assoc Fee Freq.: Monthly
- Tax Amount: $116,184
Disclosures and Reports
- Property ID: 1493-0012
- Block: 1493
- Lot Number: 12
Listing Courtesy of Compass
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Listing agents
— 21 E 81st St —
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Schools
Schools serving 21 E 81st St
School District:New York City Geographic School District 02
| Name | Grades | Distance |
|---|---|---|
Ps 6 Lillie D Blake 45 East 81st Street, New York, NY 10028 | K-5 | 0.1 mi |
Jhs 167 Robert F Wagner 220 East 76th Street, New York, NY 10021 | 6-8 | 0.5 mi |
Disclaimer:
School attendance boundaries provided by Pitney Bowes and are for reference only. Contact the school directly to verify enrollment eligibility.
Price & Sales History for 21 E 81st St
Tax History
Tax History for 21 E 81st St
Year
Property Taxes
Change
Tax Assessment
Change
2025
$114,282
114%
$585,550
6%
2024
$53,459
-50%
$552,407
—
2023
$107,681
101%
$552,407
-41%
2022
$53,665
2%
$934,500
-7%
2021
$52,401
6%
$1,004,220
-12%
2020
$49,663
8%
$1,143,780
2%
2019
$46,185
—
$1,122,780
144%
2018
$46,185
1%
$460,339
1%
2017
$45,667
-46%
$456,888
6%
2016
$84,028
8%
$431,029
6%
2016
$77,447
110%
$406,632
6%
2014
$36,921
-45%
$383,616
—
2013
$67,543
—
$383,616
—
Disclaimer: Historical tax information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
Estimate the Cost
Estimate the Cost for 21 E 81st St
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- Duplex
- Active
- Updated 7 days ago
- 4Beds
- 5Total Baths
- 5,646Sq. Ft.
- Duplex
- Active
- Updated 7 days ago
- 4Beds
- 5Total Baths
- 5,646Sq. Ft.
21 E 81st Street, New York City, NY 10028 (MLS# RLS20071275) is a Duplex property with 6 bedrooms, 5 full bathrooms and 1 partial bathroom. 21 E 81st Street is currently listed for $18,000,000 and was received on February 10, 2026. Want to learn more about 21 E 81st Street? Do you have questions about finding other Duplex real estate for sale in New York City? You can browse all New York City real estate or contact a Coldwell Banker agent to request more information.