Manhattan » 10027 » W 121st St » 431 W 121st St

431 West 121st Street, New York, NY 10027 - Property report

Also known as: 429-431 W 121st St

Property image for 431 West 121st Street, New York, NY 10027

Property type

Walk-up Cooperative Building (Other than Condominiums) (XC6)

Year built

1920

Lot sq. ft.

3,618

General information

Address

Primary address

431 West 121st Street

Alternate address(es)

1241-1243 Amsterdam Ave
429-431 W 121st St

ZIP code

10027

Neighborhood

Morningside Heights

Borough

Manhattan

Block & lot

01963-0034

Building

Property type

Walk-up Cooperative Building (Other than Condominiums) (XC6)

Building sq. ft.

17,034

Building dimensions

36 ft x 88 ft

Buildings on lot

Stories

Year built

1920

Last altered

1985

Tax

Tax year

2026-2027

Property tax

$58,069

Tax class

Floor area ratio (FAR)

Commercial FAR

Residential FAR

Buildable area

Zoning & Use

Zoning

Residential units

Residential sq. ft.

Commercial units

Retail sq. ft.

Lot

Lot dimensions

36.17 ft x 100 ft

Lot sq. ft.

3,618

Area overview

Walk score

97 /100. Walker's Paradise

Transit score

100 /100. Rider's Paradise

Bike score

61 /100. Bikeable

School district

Community district

Closest police station

0.29 Miles

Closest fire station

0.22 Miles

View more such as transportation, nearby schools and risk designations.

Units for 431 West 121st Street, New York, NY

Unit	Sale date	Sq. ft.
Unit 1A	06/24/2025
Unit 1B	09/01/2022	800
Unit 1B,D
Unit 1C	11/04/2009
Unit 1D	05/19/2016
Unit 2A	09/05/2008
Unit 2B	08/10/2010
Unit 2C
Unit 2D
Unit 3A	09/17/2009
Unit 3C	09/30/2005
Unit 3D	09/30/2005
Unit 4C	05/21/2021
Unit 4D	03/30/2022
Unit 5A
Unit 5B	04/17/2025
Unit 5C	12/26/2023
Unit D-1B
Unit G	05/18/2015
Unit GFB	06/23/2026

Ownership

Ownership information for 431 West 121st Street, New York, NY

Unlock full ownership info — get contact details, including phone numbers and emails for owners and the real people behind LLCs.

Property owner name

Registered owner

Source

Deed

Owner contact information

Phone number

Owner address

Documents

Sales history for 431 West 121st Street, New York, NY 10027

No recently recorded sales for this property.

More about New York City property records.

Title documents

Date	Type	Party 1	Party 2
06/24/2026 - R 05/29/2026 - D	Termination of Assign of L&R (2026061900138002)	XXX XXXX XXX XXXXXX XXXXXXX XXXXXX XXXX XXXX	XXXXXX XXX
06/24/2026 - R 05/29/2026 - D	Satisfaction of Mortgage (2026061900138001)	XXX XXXX XXX XXXXXX XXXXXXX XXXXXX XXXX XXXX	XXXXXX XXX
06/05/2026 - R 05/29/2026 - D	Asgn of Asgn of L&R (2026060400868010)	XXXXXXXX XXXXXXXX XXXXXXXXXXX XXXX	XXXXXXXX XXXXXXXXXXX XXXX X X
06/05/2026 - R 05/29/2026 - D	Assignment, Mortgage (2026060400868009)	XXXXXXXX XXXXXXXX XXXXXXXXXXX XXXX	XXXXXXXX XXXXXXXXXXX XXXX X X
06/05/2026 - R 05/29/2026 - D	Assignment of Leases and Rents (2026060400868008)	XXX XXXX XXX XXXXXX XXXXXXX XXXXXXXXXXX XXXX XXXX	XXXXXXXX XXXXXXXX XXXXXXXXXXX XXXX
06/05/2026 - R 05/29/2026 - D	Mortgage (2026060400868007)	XXX XXXX XXX XXXXXX XXXXXXX XXXXXXXXXXX XXXX XXXX	XXXXXXXX XXXXXXXX XXXXXXXXXXX XXXX
06/05/2026 - R 05/29/2026 - D	Asgn of Asgn of L&R (2026060400868006)	XXXXXXXX XXXXXXXX XXXXXXXXXXX XXXX	XXXXXXXX XXXXXXXXXXX XXXX X X
06/05/2026 - R 05/29/2026 - D	Assignment, Mortgage (2026060400868005)	XXXXXXXX XXXXXXXX XXXXXXXXXXX XXXX	XXXXXXXX XXXXXXXXXXX XXXX X X
06/05/2026 - R 05/29/2026 - D	Assignment of Leases and Rents (2026060400868004)	XXX XXXX XXX XXXXXX XXXXXXX XXXXXXXXXXX XXXX XXXX	XXXXXXXX XXXXXXXX XXXXXXXXXXX XXXX
06/05/2026 - R 05/29/2026 - D	Mortgage (2026060400868003)	XXX XXXX XXX XXXXXX XXXXXXX XXXXXXXXXXX XXXX XXXX	XXXXXXXX XXXXXXXX XXXXXXXXXXX XXXX

*Most recent recorded documents on file for this property.

R: Recorded date
D: Document date

Tax

Property taxes for 431 West 121st Street, New York, NY

Property tax data includes tax amount, market value and assessed value, exemptions, abatements and assessment history.

Current property tax

Tax year

2025-2026

Property tax

$58,069

Municipal exemptions

Recent tax assessments

Market value

$2,825,000

Assessed value

$1,271,250

More about New York City Property Taxes

Assessment history

See the assessment and property tax history, including the evolution of the total tax rate and corresponding property tax amount.

Tax year	Market value	Assessed value	Taxable amount	Tax rate	Base tax	Property tax	Y-o-Y change
2025/26	$2,748,000	$1,236,600	$444,516	12.439%	$145,189	$55,293	+5.22%
2024/25	$2,766,000	$1,244,700	$420,391	12.5%	$143,764	$52,549	-0.34%
2023/24	$2,853,000	$1,283,850	$421,760	12.502%	$146,048	$52,728	+3.02%
2022/23	$2,729,000	$1,228,050	$417,256	12.267%	$140,311	$51,185	+7.11%
2021/22	$2,339,000	$1,052,550	$390,595	12.235%	$128,779	$47,789	+3.92%
2020/21	$2,558,000	$1,151,100	$374,892	12.267%	$129,867	$45,988	+4.31%
2019/20	$2,501,000	$1,125,450	$353,459	12.473%	$124,504	$44,087	+1.25%
2018/19	$2,582,000	$1,161,900	$345,234	12.612%	$115,903	$43,541	+2.70%
2017/18	$2,164,000	$973,800	$333,324	12.719%	$103,413	$42,395	+8.87%
2016/17	$2,061,000	$927,450	$302,064	12.892%	$92,996	$38,942	+7.28%

Permits

Permit information for 431 West 121st Street, New York, NY

Filing date	Job type	Job status	Job description	Initial cost
04/27/2026	Alteration
02/04/2026	Alteration
02/04/2026	Alteration
01/30/2026	Alteration
01/30/2026	Alteration

*Most recent permits on record for this property.

More about New York City property records

Violations

DOB Violations

Violation ID	Issue date	Type	Status
	05/04/2016	Aeuhaz1-fail to certify class 1
	04/20/2016	Aeuhaz1-fail to certify class 1
	12/17/2014	Aeuhaz1-fail to certify class 1

*Most recent DOB violations on record for this property.

Listings

Neighborhood

Manhattan commercial market stats

Review a detailed real estate market overview of Manhattan and assess current trends, property values, property types sold and transaction volumes. View the median price per square foot in Manhattan and compare it to other New York City boroughs.

Q2 2026 median price/sq. ft.

$729

10.4% Y-o-Y

Q1 2026 median price/sq. ft.

$807

22.4% Y-o-Y

2025 median price/sq. ft.

$630

-8.1% Y-o-Y

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

Risk

Create a free account to unlock expanded risk information, such as crime incidents in the area, tsunami and landslides risks, or its location relative to FEMA flood zones and the Coastal Barriers Resources System Area (COBRA).

FEMA flood zones

FEMA flood zones

Hurricane evacuation zones

Subway & traffic

Closest station

Saint Nicholas Ave & 125th St at SW Corner

Station lines

A-B-C-D

Distance (miles)

0.289

View subway map

Access the detailed traffic volume map for 431 West 121st Street, New York, NY 10027 to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity. View daily traffic map

Frequently asked questions

What is the year built for 431 West 121st Street, New York, NY 10027?

The development at 431 West 121st Street, New York, NY 10027 was built in 1920.

What is the total square footage of 431 West 121st Street, New York, NY 10027?

431 West 121st Street, New York, NY 10027 has a total of 17,034 square feet.

What is the assessed value of 431 West 121st Street, New York, NY 10027?

431 West 121st Street, New York, NY 10027 is currently assessed at $1,271,250.

What are the property taxes for 431 West 121st Street, New York, NY 10027?

The property taxes for 431 West 121st Street, New York, NY 10027 total $58,068.

How many residential units does this building have?

This building has 25 residential unit(s).

Disclaimer

All data comes from government sources. No attempt has been made to validate it. No attempt has been made to validate the accuracy of the programming of this website.

Do not rely on this report to support investment decisions. The only authoritative source for the information in this report is the government agencies from which the data was acquired.