New York City  »  11215  »  6th Ave  »  521 6th Ave

521 6th Avenue, Brooklyn, NY 11215 - Property report

Also known as: 521 6th Ave

Property image for 521 6th Avenue, Brooklyn, NY 11215
static Mapbox map

Property type

Two Family Converted from One Family (B3)

Year built

1899

Lot sq. ft.

1,273

General information

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Address
Primary address
521 6th Avenue
ZIP code
11215
Neighborhood
Park Slope
Borough
Brooklyn
Block & lot
01036-0011

Owner

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Building
Property type
Two Family Converted from One Family (B3)
Building sq. ft.
1,800
Building dimensions
15.75 ft x 43 ft
Buildings on lot
1
Stories
2
Year built
1899
Building material
Brick
Exterior wall
Brick/Masonary
Basement
4
Tax
Tax year
2026-2027
Property tax
$6,035
Tax class
Floor area ratio (FAR)
Commercial FAR
Residential FAR
Buildable area
Zoning & Use
Zoning
Qualified opportunity zone
Residential units
2
Residential sq. ft.
Commercial units
0
Office sq. ft.
Retail sq. ft.
Lot
Frontage(s)
6 Avenue (wide)
Distance to wide street
Lot dimensions
15.75 ft x 80.83 ft
Lot sq. ft.
1,273

Area overview

Walk score
97 /100.  Walker's Paradise
Transit score
100 /100.  Rider's Paradise
Bike score
87 /100.  Very Bikeable
School district
15
Community district
6
Closest police station
0.91 Miles
Closest fire station
0.21 Miles

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

Ownership

Ownership information for 521 6th Avenue, Brooklyn, NY

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Property owner name
Registered owner
Source
Deed
Owner contact information
Phone number
Owner address
Documents

Sales history for 521 6th Avenue, Brooklyn, NY 11215

No recently recorded sales for this property.

More about New York City property records.

Title documents

Date Type Amount Party 1 Party 2
07/28/2023 - R
07/13/2023 - D		 Satisfaction of Mortgage
(2023071300510001)		 XXXXXX XXXXX XXXXXXXXX XXXX X X
10/10/2013 - R
05/17/2013 - D		 Mortgage and Consolidation
(2013061800391001)		 XXXXXX XXXXX XXXXXXXXX XXXX XX
07/13/2010 - R
06/11/2010 - D		 Mortgage
(2010062100317001)		 XXXXXX XXXXX XXXXXXXXX XXXX
07/17/2009 - R
07/09/2009 - D		 Satisfaction of Mortgage
(2009071000352001)		 XXXXXX XXXXX
09/05/2006 - R
07/18/2006 - D		 Easement
(2006083100854001)		 XXXXXX XXXXX XXX XXXXXX XXXXXXXXXXX XXX
07/01/2006 - R
05/31/2005 - D		 Satisfaction of Mortgage
(2006061800355001)		 XXXXXX XXXXX XXXXXXXXXXXX XXXXXXXXX XXXX
04/27/2005 - R
04/23/2003 - D		 Assignment, Mortgage
(2005042101775001)		 XXXX XXXXXX XXXXXXXX XXXXXXX XXX XXXXX XXXXX XXXX XXXXXXXX XXX
08/27/2003 - R
04/23/2003 - D		 Mortgage
(2003051500879001)		 XXXXXX XXXXX XXXX XXXXXX XXXXXXX XXXXXXX XXX
08/28/2001 - R Assignment, Mortgage
(3030007792403)		 XXXXXXXX XXXX XXXXXXXX XXXXXXXXXXX XXXX XXXXX XXX
11/20/2000 - R Assignment, Mortgage
(3750007413075)		 XXXXXXXXXX XXXXXXXXXXXXXXX XXXXXXXX XXXX XXXXX

*Most recent recorded documents on file for this property.

R: Recorded date
D: Document date

Tax

Property taxes for 521 6th 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
$6,035
Municipal exemptions
Recent tax assessments
Market value
$3,177,000
Assessed value
$190,620

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 $2,846,000 $170,760 $28,605 19.843% $5,958 $5,676 +4.54%
2024/25 $2,582,000 $154,920 $27,033 20.085% $5,699 $5,430 +0.22%
2023/24 $2,550,000 $153,000 $26,973 20.085% $5,699 $5,418 +4.10%
2022/23 $2,262,000 $135,720 $25,626 20.309% $5,501 $5,204 +3.98%
2021/22 $1,793,000 $107,580 $25,073 19.963% $5,293 $5,005 +0.73%
2020/21 $2,174,000 $130,440 $23,611 21.045% $5,266 $4,969 +5.53%
2019/20 $2,404,000 $144,240 $22,244 21.167% $5,005 $4,708 +1.46%
2018/19 $2,563,000 $153,780 $22,184 20.919% $4,946 $4,641 +7.88%
2017/18 $2,248,000 $134,880 $21,102 20.385% $4,601 $4,302 +4.74%
2016/17 $1,814,000 $108,840 $20,544 19.991% $4,417 $4,107 +8.99%
Permits

Permit information for 521 6th Avenue, Brooklyn, NY

No recently recorded permits for this property.

More about New York City property records

Violations

HPD Violations

No recently recorded violations for this property.

Neighborhood

Park Slope South residential market stats

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

Median sale price

—

Median price/sq. ft.

—

Brooklyn median sale price

$899,000

6% Y-o-Y

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

Risk

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FEMA flood zones

Property location map
FEMA flood zones
X

Hurricane evacuation zones

Property location map
Hurricane evacuation zones
-

Subway & traffic

Closest station
7th Ave & 9th St at SW Corner
Station lines
F
Distance (miles)
0.229
View subway map

Access the detailed traffic volume map for 521 6th Avenue, Brooklyn, NY 11215 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.10 Magnet School for Math, Science & Design Technology 8 Yes Public K-5 829 0.31
Avalon Childcare Fifth Avenue NR No Private K-1 83 0.20
P.S. 39 Henry Bristow 9 No Public K-5 344 0.27
P.S. 107 John W Kimball 8 No Public PK, K-5 501 0.29
P.S. 107 John W Kimball 8 No Public PK, K-5 501 0.29
P.S. 124 Silas B Dutcher 3 No Public PK, K-5 329 0.29
P.S. 124 Silas B Dutcher 3 No Public PK, K-5 329 0.29
P.S. 295 7 No Public PK, K-5 242 0.35
P.S. 295 7 No Public PK, K-5 242 0.35
Hellenic Classical Charter School 10 No Charter PK, K-8 483 0.37
Nearest middle schools

Name Rating Att. zoned Type Grade range No of students Distance (miles)
New Voices School Of Academic And Creative Arts 9 No Public 6-8 530 0.35
Hellenic Classical Charter School 10 No Charter PK, K-8 483 0.37
Jhs 88 Peter Rouget 6 No Public 6-8 1,024 0.37
P.S. 53 NR No Public K-12 410 0.37
St. Thomas Aquinas School NR No Private PK, K-8 0 0.40
Saint Saviour Catholic Academy NR No Private PK, K-8 370 0.41
Park Slope Collegiate 4 No Public 6-12 577 0.47
St. Joseph the Worker Catholic Academy NR No Private PK-8 186 0.48
Ms 51 William Alexander 7 No Public 6-8 1,026 0.48
Holy Name Of Jesus School NR No Private PK, K-8 239 0.48
Nearest high schools

Name Rating Att. zoned Type Grade range No of students Distance (miles)
P.S. 53 NR No Public K-12 410 0.37
Yeshiva Machzikel Hadas NR No Private 12 0 0.46
John Jay School for Law 3 No Public 9-12 461 0.47
Park Slope Collegiate 4 No Public 6-12 577 0.47
Cyberarts Studio Academy 2 No Public 9-12 298 0.47
Millennium Brooklyn High School 10 No Public 9-12 721 0.47
St Saviour High School NR No Private 9-12 400 0.47
Al-Noor School NR No Private PK-12 654 0.51
AL-Noor School NR No Private PK-12 630 0.51
Mesilas Bais Yaakov NR No Private 9-12 260 0.52

Data provided by GreatSchools.org © 2026. All rights reserved.

Neighbors for 521 6th Avenue, Brooklyn, NY

525 A 6th Ave, Brooklyn 333 14th St, Brooklyn 523 6th Ave, Brooklyn 531 6th Ave, Brooklyn 344 A 13th St, Brooklyn 348 13th St, Brooklyn 527 6th Ave, Brooklyn 527 A 6th Ave, Brooklyn 519 6th Ave, Brooklyn 529 6th Ave, Brooklyn 531 A 6th Ave, Brooklyn 358 13th St, Brooklyn 521 A 6th Ave, Brooklyn 340 13th St, Brooklyn 360 13th St, Brooklyn 533 6th Ave, Brooklyn 342 13th St, Brooklyn 344 13th St, Brooklyn 525 6th Ave, Brooklyn

Nearby ZIP codes for 521 6th Avenue, Brooklyn, NY

10004, New York City, NY 10005, New York City, NY 10038, New York City, NY 10271, New York City, NY 11201, New York City, NY 11204, New York City, NY 11205, New York City, NY 11213, New York City, NY 11216, New York City, NY 11217, New York City, NY 11218, New York City, NY 11219, New York City, NY 11220, New York City, NY 11225, New York City, NY 11226, New York City, NY 11228, New York City, NY 11230, New York City, NY 11231, New York City, NY 11232, New York City, NY 11238, New York City, NY

Frequently asked questions

What is the year built for 521 6th Avenue, Brooklyn, NY 11215?

The development at 521 6th Avenue, Brooklyn, NY 11215 was built in 1899.

What is the total square footage of 521 6th Avenue, Brooklyn, NY 11215?

521 6th Avenue, Brooklyn, NY 11215 has a total of 1,800 square feet.

What is the assessed value of 521 6th Avenue, Brooklyn, NY 11215?

521 6th Avenue, Brooklyn, NY 11215 is currently assessed at $190,620.

What are the property taxes for 521 6th Avenue, Brooklyn, NY 11215?

The property taxes for 521 6th Avenue, Brooklyn, NY 11215 total $6,035.

How many residential units does this building have?

This building has 2 residential unit(s).

Disclaimer

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