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21 East 73rd Street, New York, NY 10021 Property Information

21 East 73rd Street, New York, NY 10021 Property Information

  • General
  • Owner
  • Documents
  • Tax
  • Permits
  • Neighborhood
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21 East 73rd Street, New York, NY 10021 2
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Address

Primary address 21 East 73rd Street
Neighborhood Lenox Hill
Zip code 10021
Borough Manhattan
Block & lot 01388-0013

Sales & Tax Overview for 21 East 73rd Street, New York

View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.

Tax class

Lot & Building Information for 21 East 73rd Street, New York

Lot sq. ft. 1,635
Lot dimensions 16 ft x 102.17 ft
Property type Mansion Type or Town House (A7)
Building sqft 4,288
Building dimensions 16 ft x 63 ft
Buildings on lot 1
Stories 4
Structure type Town house
Building material Other
Exterior wall Combination
Basement type Full
Year built 1901
Frontage East 73 Street (narrow)
Nearest wide street Madison Avenue
Distance to wide street
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Zoning & Use for 21 East 73rd Street, New York

Zoning
Residential units (DOF) 1
Residential sqft

Area Overview

Walk Score
Transit Score
Bike Score


School district 2
Community district 8
Closest police station 0.38 Miles
Closest fire station 0.37 Miles

View more neighborhood information such as transportation, nearby schools and risk designations in the dedicated tab.

Other Property Data for 21 East 73rd Street, New York

New York property reports include comprehensive occupancy, development and violation information. Create a free account to access valuable data points such as:

Floor area ratio (FAR) for 21 East 73rd Street, New York, NY 10021, including commercial and residential FAR, FAR as built and usable floor area.
Development maps such as planimetric, zoning, urban landscape, and HPD alternative enforcement program maps.
Violations for 21 East 73rd Street, New York, NY 10021, including DOB violations, ECB violations, HPD violations and 311 complaints.

About 21 East 73rd Street, New York

What is the year built & the total sq. ft. for 21 East 73rd Street, New York, NY 10021?

21 East 73rd Street, New York, NY 10021 was built in 1901 and has a total of 4,288 square feet.

What is the assessed value of 21 East 73rd Street, New York, NY 10021 and the property tax paid?

Assessed at $723,540, the tax amount paid for 21 East 73rd Street, New York, NY 10021 is $113,954.

When was 21 East 73rd Street, New York, NY 10021 last sold?

21 East 73rd Street, New York, NY 10021 was last sold in 07/31/1987.

How many residential units does this building have?

This building has 1 residential unit(s).

Ownership Information for 21 East 73rd Street, New York

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Property owner name for 21 East 73rd Street, New York, NY 10021
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Building contacts for 21 East 73rd Street, New York, NY 10021
Building management:
Representatives (from permits):
Tenants:
Real Estate Reports:
Eliza Theiss, Jun 23, 2026 NYC Resale Gains & Losses: Every Borough Made Money in 2025, Except Manhattan
In 2025, NYC home-sellers mostly made money. But, in Manhattan, resales came with losses — and it was apartments and recent buyers that absorbed them.
Eliza Theiss, Jun 04, 2026 World Cup or Your Mortgage/Rent? Ticket Prices Rival Host City Housing Costs
World Cup ticket prices rival monthly housing expenses in the 11 U.S. host cities, with even the cheapest seats covering weeks or even months of rent or mortgage payments.
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Past Sales & Property History for 21 East 73rd Street, New York

Create a free account to view the complete sales history for 21 East 73rd Street, New York, including title documents, transfer conditions, mortgages, liens, and pre-foreclosures.

No recorded sales for this property.

Title Documents for 21 East 73rd Street, New York

To view the complete history of deeds, mortgages, assignments of leases and rents, and more, sign up for free. Available data goes back to 1966.

Date Type Amount Party 1 Party 2 Doc image
11/15/2006 - R
10/03/2006 - D
Satisfaction of Mortgage
(2006103101882001)
05/18/2000 - R Sundry Agreement
(1680007168268)
06/17/1999 - R Satisfaction of Mortgage
(1090006643509)
04/04/1997 - R Satisfaction of Mortgage
(1040005558804)
10/09/1996 - R Mortgage
(1670005346867)
10/09/1996 - R Power of Attorney
(1230005346023)
01/31/1996 - R Power of Attorney
(1190005013919)
01/31/1996 - R Assignment, Mortgage
(1950005013895)
01/31/1996 - R Agreement
(1390005013939)
01/31/1996 - R Mortgage
(1040005014004)
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R: Recorded date
D: Document date

Property Taxes for 21 East 73rd Street, New York

Access detailed property tax data for 21 East 73rd Street, New York, NY 10021. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.

Tax year: 2026-2027
Property tax: $113,954
Tax assessor's market value: $12,059,000
Assessed value: $723,540

Assessment History for 21 East 73rd Street, New York

Here's the assessment & property tax history for 21 East 73rd Street, New York, including the evolution of the total tax rate and corresponding property tax.

Year Market value Assessed value Taxable Tax rate % Base tax Property tax Year over year change
2025/26 $12,755,000 $765,300 $541,774 19.843% $107,504 $107,504 -1.20%
2024/25 $11,381,000 $682,860 $541,774 20.085% $108,815 $108,815 +5.00%
2023/24 $11,307,000 $678,420 $515,976 20.085% $103,634 $103,634 +4.75%
2022/23 $11,992,000 $719,520 $487,166 20.309% $98,939 $98,939 +3.56%
2021/22 $12,886,000 $773,160 $478,566 19.963% $95,536 $95,536 +0.55%

Permits for 21 East 73rd Street, New York

The complete history of permits filed for 21 East 73rd Street, New York, including new construction or demolition permits, plus any work pertaining to plumbing, heating and sprinkler systems is available with a free account. Available data goes back to 1990.

Filing date Job type Job status Job description Initial cost
09/01/2018 Alteration
09/01/2018 Alteration
08/31/2018 Alteration
07/03/2014 Alteration type 2
09/21/2001 Alteration type 3
07/27/2001 Alteration type 2
11/06/2000 Alteration type 1
08/27/1998 Alteration type 1
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Lenox Hill Residential Market Stats

Access a detailed real estate market overview of Lenox Hill so you can assess current trends, home values, types of properties sold and transaction volume.
View the median home sale price in Lenox Hill and compare it to other neighborhoods in Manhattan.

Median Sale Price
$1,505,000
14% YoY
Median Price/Sqft
$1,387
6.2% YoY
Manhattan Median Sale Price
$1,200,000
9.3% YoY

Check out recently sold homes in Manhattan and see how their prices compare.

Risk

FEMA flood zone(s): X (See more on map)

Transportation

Distance to Subway
Closest station Lexington Ave & 77th St at SW Corner
Station lines 6
Distance (miles) 0.274
View subway map

Schools

Nearest elementary schools

Name Rating Att. zoned Type Grade range No of students Distance (miles)
P.S. 6 Lillie D Blake 9 Yes Public PK, K-5 587 0.41
P.S. 6 Lillie D Blake 9 Yes Public PK, K-5 587 0.41
The Hewitt School NR No Private K-12 522 0.13
Buckley School NR No Private K-9 374 0.17
The Allen-Stevenson School NR No Private K-8 421 0.30

Nearest middle schools

Name Rating Att. zoned Type Grade range No of students Distance (miles)
Jhs 167 Robert F Wagner 8 Yes Public 6-8 1,019 0.39
The Hewitt School NR No Private K-12 522 0.13
Buckley School NR No Private K-9 374 0.17
The Allen-Stevenson School NR No Private K-8 421 0.30
Rudolf Steiner School NR No Private PK-12 299 0.31

Nearest high schools

Name Rating Att. zoned Type Grade range No of students Distance (miles)
The Hewitt School NR No Private K-12 522 0.13
Ramaz School NR No Private 9-12 384 0.23
Ramaz School NR No Private 9-12 0 0.25
St. Jean Baptiste High School NR No Private 9-12 338 0.29
Dominican Academy NR No Private 9-12 0 0.30

Data provided by GreatSchools.org © 2025. All rights reserved.

Neighbors for 21 East 73rd Street, New York

Here are the neighbors for 21 East 73rd Street, New York, NY 10021.

Address Square feet Purchase date Purchase price
51 E 73rd St, New York 12,321 03/20/2024 $303,134
36 E 73rd St, New York 5,920 06/17/1983
12 E 73rd St, New York 6,230 01/31/2017 $41,000,000
11 E 73rd St, New York 23,521
23 E 73rd St, New York 8,821 06/26/1985
921 Madison Ave, New York 65,800
55 E 73rd St, New York 6,021 10/27/2010
10 E 73rd St, New York 7,049 01/27/2005 $14,500,000
922 Madison Ave, New York 5,934 01/01/2014
57 E 73rd St, New York 8,116
4 E 73rd St, New York 5,400 01/16/2004 $6,000,000
27 E 73rd St, New York 7,285 12/19/2023
17 E 73rd St, New York 8,607 08/17/1973
44 E 73rd St, New York 6,798 01/20/1995
25 E 73rd St, New York 5,300 06/19/1989
778 Park Ave, New York 120,073
907 Madison Ave, New York 6,095 08/18/1993
920 5th Ave, New York 107,449
49 E 73rd St, New York 74,427 05/08/1974
5 E 73rd St, New York 9,923 06/27/1967
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