New York City » 10010 » E 21st St » 40 E 21st St

40 East 21st Street #Res, New York, NY 10010 Property Information

Q: How many residential units does this building have?

This building has 11 residential units and 0 commercial spaces.

Research 100M+ property records powered by:

2000+ governmental and public data sources
80 dedicated analysts and researchers
20+ years of real estate experience

Learn More

Photo & Map Show Hide

Address

Primary address	40 East 21st Street #Res
Neighborhood	Flatiron District

Zip code	10010
Borough	Manhattan
Block & lot	00849-1102

Sales & Tax Overview for 40 East 21st Street #Res, New York

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

Tax class	Register
Estimated property tax	$252,732

Lot & Building Information for 40 East 21st Street #Res, New York

Lot sq. ft.	2,300
Lot dimensions	25 ft x 92 ft
Property type	Co-op within a Condominium (R9)
Building sqft	14,922
Buildings on lot	1
Stories	11

Year built	1906

Zoning & Use for 40 East 21st Street #Res, New York

Residential units (DOF)	11

Units & Related Parcels

Unit	Sale Date	Sale Price	Sqft	Price/Sqft
00849-1102-cpRES
Unit 10D	07/10/2024	Register
Unit 11	02/04/2021	Register	2,000	Register
Unit 2	10/24/2022	Register
Unit 5			2,200
Unit 6
Unit 7
Unit 9
Unit 9C

Area Overview

Walk Score

Transit Score

Bike Score

School district	2
Community district	5

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

Unit Overview

Unit #	RES
Square feet	14,922
Condo complex	100971

Other Property Data for 40 East 21st Street #Res, 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 40 East 21st Street #Res, New York, NY 10010, 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 40 East 21st Street #Res, New York, NY 10010, including DOB violations, ECB violations, HPD violations and 311 complaints.

About 40 East 21st Street #Res, New York

What is the year built & the total sq. ft. for 40 East 21st Street #Res, New York, NY 10010?

40 East 21st Street #Res, New York, NY 10010 was built in 1906 and has a total of 14,922 square feet.

What is the assessed value of 40 East 21st Street #Res, New York, NY 10010 and the property tax paid?

Assessed at $2,419,449, the tax amount paid for 40 East 21st Street #Res, New York, NY 10010 is $268,556. For the next year, the tax amount for 40 East 21st Street #Res, New York, NY 10010 is estimated at $252,732.

When was 40 East 21st Street #Res, New York, NY 10010 last sold?

40 East 21st Street #Res, New York, NY 10010 was last sold in 07/08/2005.

How many residential units does this building have?

This building has 11 residential unit(s).

Ownership Information for 40 East 21st Street #Res, New York

View property contacts like owners, building management, representatives from permits and tenants with a free account. For LLC-owned properties, access manually researched real owners and phone numbers.

Property owner name for 40 East 21st Street #Res, New York, NY 10010

Find out who owns 40 East 21st Street #Res, New York, NY 10010.
Sign Up

Building contacts for 40 East 21st Street #Res, New York, NY 10010

Building management:	Register
Representatives (from permits):	Register
Tenants:	Register

Commercial Real Estate nearby

Real Estate Reports:

Eliza Theiss, Apr 23, 2026 $4.6M Hudson Yards Maintains Top Spot, Luxury Sales in Malba Set $2.5M Price Record for Queens

Despite prices declining, Hudson Yards remained the most expensive NYC neighborhood, but TriBeCa’s growth closed the gap to under $400,000, while Malba set a new historic price record for Queens at $2.5 million, securing the highest ranking ever for the borough at #5.

Eliza Theiss, Mar 19, 2026 Cheaper in the City? Nearly 100 Communities in Suburban NYC Surpass $1M

New Yorkers planning a move to the suburbs increasingly find their options limited, after suburban home values shot up twice as fast as NYC medians over the last decade. While larger homes and better prices were long the norm outside the five boroughs, today, many NYC buyers find their option restricted to a handful of suburban markets.

Research 100M+ property records powered by:

2000+ governmental and public data sources
80 dedicated analysts and researchers
20+ years of real estate experience

Learn More

Past Sales & Property History for 40 East 21st Street #Res, New York

Create a free account to view the complete sales history for 40 East 21st Street #Res, New York, including title documents, transfer conditions, mortgages, liens, and pre-foreclosures.

No recorded sales for this property.

Title Documents for 40 East 21st Street #Res, 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
03/17/2026 - R	UCC3 Continuation (2026031700518001)
04/15/2024 - R	UCC3 Amendment (2024041500407001)
08/12/2021 - R	UCC3 Termination (2021072000841007)
08/12/2021 - R	UCC3 Termination (2021072000841006)
08/12/2021 - R	Initial UCC1 (2021072000841004)
07/20/2021 - D 08/12/2021 - R	Termination of Assign of L&R (2021072000841005)
06/28/2021 - D 08/12/2021 - R	Assignment of Leases and Rents (2021072000841003)
06/28/2021 - D 08/12/2021 - R	Agreement (2021072000841002)
06/28/2021 - D 08/12/2021 - R	Mortgage (2021072000841001)
12/14/2016 - R	UCC3 Continuation (2016121401010001)

Unlock title documents, including buyer and seller information (when available).
Sign up

R: Recorded date
D: Document date

Property Taxes for 40 East 21st Street #Res, New York

Access detailed property tax data for 40 East 21st Street #Res, New York, NY 10010. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.

Tax year:	2025-2026
Property tax:	$235,783
Estimated property tax:	$252,732

Tax assessor's market value:	$5,376,554
Assessed value:	$2,419,449
Exemptions granted by city:	Register

More about New York City Property Taxes

Assessment History for 40 East 21st Street #Res, New York

Here's the assessment & property tax history for 40 East 21st Street #Res, 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	$5,376,554	$2,419,449	$2,158,989	12.439%	$269,126	$235,622	+5.24%
2024/25	$5,334,554	$2,400,549	$2,084,429	12.5%	$261,091	$223,899	+3.53%
2023/24	$4,752,554	$2,138,649	$2,006,729	12.502%	$251,461	$216,258	+4.83%
2022/23	$4,534,000	$2,040,300	$1,966,620	12.267%	$242,125	$206,297	+10.50%
2021/22	$4,042,000	$1,818,900	$1,811,520	12.235%	$222,542	$186,691	-18.46%

Permits for 40 East 21st Street #Res, New York

The complete history of permits filed for 40 East 21st Street #Res, 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.

No recorded permits for this property.

Flatiron District Residential Market Stats

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

Median Sale Price

$2,695,000

93.5% YoY

Median Price/Sqft

$1,645

6.5% YoY

Manhattan Median Sale Price

$1,200,000

9.3% YoY

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

Transportation

Distance to Subway

Closest station

Park Ave & 22nd St at SW Corner

Station lines

Distance (miles)

0.072

View subway map

Bus Routes
Name	Park Av South/E 21 St
Line	X10
Distance (miles)	0.07

Schools

Nearest elementary schools

Name	Rating	Att. zoned	Type	Grade range	No of students	Distance to school (mi)
Ballet Tech Nyc Ps For Dance	10	No	Public	4-8	116	0.07
Ecole Internationale De New York - The Ecole	NR	No	Private	PK-8	214	0.13
Ecole Internationale De New York - The Ecole	NR	No	Private	PK-8	214	0.13
Success Academy Union Square	9	No	Charter	K-8	993	0.28
Epiphany Elementary School	NR	No	Private	PK, K-8	552	0.35

Nearest middle schools

Name	Rating	Att. zoned	Type	Grade range	No of students	Distance to school (mi)
Ballet Tech Nyc Ps For Dance	10	No	Public	4-8	116	0.07
Ecole Internationale De New York - The Ecole	NR	No	Private	PK-8	214	0.13
School Of The Future High School	8	No	Public	6-12	730	0.16
Success Academy Union Square	9	No	Charter	K-8	993	0.28
The Clinton School	8	No	Public	6-12	786	0.29

Nearest high schools

Name	Rating	Att. zoned	Type	Grade range	No of students	Distance to school (mi)
School Of The Future High School	8	No	Public	6-12	730	0.16
Baruch College Campus High School	NR	No	Public	9-12	490	0.24
Manhattan Village Academy	8	No	Public	9-12	426	0.28
Academy for Software Engineering	5	No	Public	9-12	412	0.28
High School For Language And Diplomacy	4	No	Public	9-12	155	0.28

Neighbors for 40 East 21st Street #Res, New York

Here are the neighbors for 40 East 21st Street #Res, New York, NY 10010.

Address	Square feet	Purchase date	Purchase price
430 Greenwich St, New York	23,706
170 Park Row, New York	306,862	07/18/2022	$550,000
45 Ft Charles Pl, New York	1,708	04/29/2024
33 Riverside Dr, New York	186,100	10/22/2014	$2,595,000
1702 Lexington Ave, New York	2,381	02/19/2004	$215,000
630 W 136th St, New York	36,250	02/11/2004	$3,250,000
42 Avenue B, New York	7,570	10/04/2004	$1,270,000
4 E 95th St, New York	65,656	10/03/1972
84 Mercer St, New York	125,590	09/30/1985
78 Charles St, New York	9,900	10/16/2003
650 Madison Ave, New York	449,876	06/02/2015	$10,998,438
10 Waterside Plz, New York	1,797,891
238 E 106th St, New York	10,200	02/28/2018	$14,250,000
180 Maiden Ln, New York	1,079,361	07/03/2024	$297,000,000
40 Avenue B, New York	8,075	06/10/2005	$1,540,000
205 W 39th St, New York	229,162	11/01/2017	$28,050,000
969 Park Ave, New York	128,635
40 W 83rd St, New York	4,400	03/13/2026	$6,550,000