New York City » 11217 » St Marks Ave » 21 St Marks Ave

21 St Marks Avenue, Brooklyn, NY 11217 - Property report

Also known as: 21 St Marks Ave

Property image for 21 St Marks Avenue, Brooklyn, NY 11217

Property type

Three Families (C0)

Year built

1899

Lot sq. ft.

1,750

General information

Address

Primary address

21 St Marks Avenue

ZIP code

11217

Neighborhood

Park Slope

Borough

Brooklyn

Block & lot

00933-0068

Building

Property type

Three Families (C0)

Building sq. ft.

2,304

Building dimensions

17.5 ft x 52 ft

Buildings on lot

Stories

Year built

1899

Building material

Brick

Exterior wall

Brick/Masonary

Basement

Tax

Tax year

2026-2027

Property tax

$8,318

Tax class

Floor area ratio (FAR)

Commercial FAR

Residential FAR

Buildable area

Zoning & Use

Zoning

Residential units

Residential sq. ft.

Lot

Frontage(s)

St Marks Avenue (narrow)

Nearest wide street

5 Avenue

Distance to wide street

Lot dimensions

17.5 ft x 100 ft

Lot sq. ft.

1,750

Area overview

Walk score

99 /100. Walker's Paradise

Transit score

100 /100. Rider's Paradise

Bike score

90 /100. Biker's Paradise

School district

Community district

Closest police station

0.11 Miles

Closest fire station

0.13 Miles

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

Ownership

Ownership information for 21 St Marks Avenue, Brooklyn, 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 21 St Marks Avenue, Brooklyn, NY 11217

No recently recorded sales for this property.

More about New York City property records.

Title documents

Date	Type	Party 1	Party 2
03/28/2025 - R 03/24/2025 - D	Satisfaction of Mortgage (2025032800292001)	XXXXXXX XXXXX	XXXXXXXX XXXXX XXXX X X
01/11/2021 - R 01/06/2021 - D	Landmark Designation (2021010600542001)	XXX XXXXXXXXX XXXXXXXXXXXX XXXXXXXXXX
03/26/2015 - R 03/09/2015 - D	Mortgage (2015031800268001)	XXXXXXX XXXXX	XX XXXXXX XXXXX XXXX XX
06/06/2012 - R 05/29/2012 - D	Satisfaction of Mortgage (2012052800010001)	XXXXXXX XXXXX	XXXXXXX XXXXXXX XXXXXXX XXX XXXX XXXXXXXXXXX
01/20/2011 - R 01/01/2011 - D	Agreement (2011010800090001)	XXXXX XXXXXXX	XXXXXXX XXXXXXX XXXXXXX XXX XXXX XXXXXXXXXXX
09/28/2010 - R 09/01/2009 - D	Agreement (2010090900953001)	XXXXXXX XXXXX	XXXXXXX XXXXXXX XXXXXXX XXX XXXX XXXXXXXXXXX
12/19/2008 - R 09/01/2008 - D	Agreement (2008092400591001)	XXXXXXX XXXXX	XXXXXXX XXXXXXX XXXXXXX XXX XXXX XXXXXXXXXXX
07/02/2008 - R 06/16/2008 - D	Satisfaction of Mortgage (2008061600945001)	XXXXXXX XXXXX	XXXXXXXXXX XXXXXX XXXX XX
12/13/2002 - R	Agreement (3960009017296)	XXXXX XXXXXXX
01/16/2002 - R	Mortgage (3290007965129)	XXXXXXX XXXXX	XXXX XXXXXXX XXXX XXXXX XXXX XXX

*Most recent recorded documents on file for this property.

R: Recorded date
D: Document date

Tax

Property taxes for 21 St Marks Avenue, Brooklyn, 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

$8,318

Municipal exemptions

Recent tax assessments

Market value

$2,492,000

Assessed value

$149,520

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	$2,520,000	$151,200	$41,921	19.843%	$8,318	$8,318	-0.26%
2024/25	$2,645,000	$158,700	$41,525	20.085%	$8,340	$8,340	+5.95%
2023/24	$2,801,000	$168,060	$39,194	20.085%	$7,872	$7,872	+4.72%
2022/23	$2,438,000	$146,280	$37,013	20.309%	$7,517	$7,517	+12.43%
2021/22	$2,268,000	$136,080	$33,494	19.963%	$6,974	$6,686	-5.23%
2020/21	$2,300,000	$138,000	$33,524	21.045%	$7,352	$7,055	+0.38%
2019/20	$2,360,000	$141,600	$33,204	21.167%	$7,325	$7,028	+7.68%
2018/19	$2,325,000	$139,500	$31,202	20.919%	$6,833	$6,527	+9.01%
2017/18	$1,807,000	$108,420	$29,374	20.385%	$6,288	$5,988	+8.67%
2016/17	$1,962,000	$117,720	$27,562	19.991%	$5,820	$5,510	+2.35%

Permits

Permit information for 21 St Marks Avenue, Brooklyn, NY

No recently recorded permits for this property.

More about New York City property records

Violations

HPD Violations

Violation ID	Inspection date	Class	NOV issue date	Status
	05/05/2026	A
	06/11/2025	A
	04/11/2024	A

*Most recent HPD violations on record for this property.

Neighborhood

Park Slope residential market stats

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

Median sale price

$1,619,646

12.4% Y-o-Y

Median price/sq. ft.

$1,514

6.4% Y-o-Y

Brooklyn median sale price

$899,000

6% Y-o-Y

Check out recently sold homes in Brooklyn 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

Flatbush Ave & Bergen St at SW Corner

Station lines

2-3

Distance (miles)

0.052

View subway map

Access the detailed traffic volume map for 21 St Marks Avenue, Brooklyn, NY 11217 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

Schools

Nearest elementary schools

Name	Rating	Att. zoned	Type	Grade range	No of students	Distance (miles)
P.S. 282 Park Slope	5	Yes	Public	PK, K-5	496	0.29
P.S. 282 Park Slope	5	Yes	Public	PK, K-5	496	0.29
Park Slope Christian Academy	NR	No	Private	PK, K-8	37	0.11
Park Slope Christian Academy	NR	No	Private	PK, K-8	37	0.11
P.S. 77	NR	No	Public	K-12	304	0.14
P.S. 133 William A Butler	6	No	Public	PK, K-5	609	0.22
P.S. 133 William A Butler	6	No	Public	PK, K-5	609	0.22
Hensen Preparatory School	NR	No	Private	PK, K-8	0	0.37
Hensen Preparatory School	NR	No	Private	PK, K-8	0	0.37
Berkeley Carroll School	NR	No	Private	PK-12	977	0.38

Nearest middle schools

Name	Rating	Att. zoned	Type	Grade range	No of students	Distance (miles)
Park Slope Christian Academy	NR	No	Private	PK, K-8	37	0.11
P.S. 77	NR	No	Public	K-12	304	0.14
Ms 266 Park Place Community Middle School	4	No	Public	6-8	69	0.14
The Math And Science Exploratory School	7	No	Public	6-8	522	0.28
Hensen Preparatory School	NR	No	Private	PK, K-8	0	0.37
Berkeley Carroll School	NR	No	Private	PK-12	977	0.38
P.S. 753 School For Career Development	NR	No	Public	6-12	354	0.41
Hanson Place Elementary School	NR	No	Private	PK, K-8	99	0.42
Hanson Place Elementary School	NR	No	Private	PK-8	43	0.42
Is 340	7	No	Public	6-8	150	0.47

Nearest high schools

Name	Rating	Att. zoned	Type	Grade range	No of students	Distance (miles)
P.S. 77	NR	No	Public	K-12	304	0.14
Brooklyn High School of the Arts	5	No	Public	9-12	927	0.28
Berkeley Carroll School	NR	No	Private	PK-12	977	0.38
Khalil Gibran International Academy	2	No	Public	9-12	134	0.40
P.S. 753 School For Career Development	NR	No	Public	6-12	354	0.41
Berkeley Carroll Elementary School	NR	No	Private	PK-12	940	0.47
Brooklyn Technical High School	10	No	Public	9-12	5,940	0.57
Bishop Loughlin Memorial High School	NR	No	Private	9-12	621	0.58
P.S. 369 Coy L Cox School	NR	No	Public	K-12	487	0.59
Brooklyn Free School	NR	No	Private	PK-12	76	0.63

Frequently asked questions

What is the year built for 21 St Marks Avenue, Brooklyn, NY 11217?

The development at 21 St Marks Avenue, Brooklyn, NY 11217 was built in 1899.

What is the total square footage of 21 St Marks Avenue, Brooklyn, NY 11217?

21 St Marks Avenue, Brooklyn, NY 11217 has a total of 2,304 square feet.

What is the assessed value of 21 St Marks Avenue, Brooklyn, NY 11217?

21 St Marks Avenue, Brooklyn, NY 11217 is currently assessed at $149,520.

What are the property taxes for 21 St Marks Avenue, Brooklyn, NY 11217?

The property taxes for 21 St Marks Avenue, Brooklyn, NY 11217 total $8,318.

How many residential units does this building have?

This building has 3 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.