New York City  »  11215  »  6th Ave  »  309 6th Ave

309 6th Avenue, Brooklyn, NY 11215 - Property report

Also known as: 309 6th Ave

Property image for 309 6th Avenue, Brooklyn, NY 11215
static Mapbox map

Property type

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

Year built

1940

Lot sq. ft.

2,299

General information

Unlock this property report with a free account

Access up-to-date information from property owner names to sales history, deeds, tax info, mortgages, development data, planimetric maps and more.

Address
Primary address
309 6th Avenue
ZIP code
11215
Neighborhood
Park Slope
Borough
Brooklyn
Block & lot
00976-0007

Owner

Find out who owns 309 6th Avenue, Brooklyn, NY 11215. Uncover corporate and individual owners with a free account.

Building
Property type
Walk-up Cooperative Building (Other than Condominiums) (XC6)
Building sq. ft.
6,608
Building dimensions
23.5 ft x 70 ft
Buildings on lot
1
Stories
4
Year built
1940
Tax
Tax year
2026-2027
Property tax
$19,391
Tax class
Floor area ratio (FAR)
Commercial FAR
Residential FAR
Buildable area
Zoning & Use
Zoning
Qualified opportunity zone
Residential units
4
Residential sq. ft.
Commercial units
0
Office sq. ft.
Retail sq. ft.
Lot
Frontage(s)
6 Avenue (wide)
Distance to wide street
Lot dimensions
23.5 ft x 97.83 ft
Lot sq. ft.
2,299

Area overview

Walk score
95 /100.  Walker's Paradise
Transit score
100 /100.  Rider's Paradise
Bike score
93 /100.  Biker's Paradise
School district
15
Community district
6
Closest police station
0.68 Miles
Closest fire station
0.25 Miles

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

Units for 309 6th Avenue, Brooklyn, NY

Unit Sale date Sale price Sq. ft. Price/Sq. ft.
Unit 1 06/26/2026
Unit 2
Unit 3 10/31/2014
Unit 4 07/17/2013 1,350
Unit A
Ownership

Ownership information for 309 6th 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 309 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
06/17/2004 - R
06/04/2004 - D		 UCC3 Assignment
(2004060700834001)		 XXXXXXX XXXXXXX XXXXXXXX XXXX XXXXXXXX
09/10/2002 - R UCC3 Termination
(3530008789953)		 XXXXXXXXX XXXXX X XXXX XX XXX XXXX
01/14/2002 - R UCC3 Assignment
(3370007957437)		 XXXXX X XXXXXXXXX XXXXX XXXXXXXX XXXXXXXX XXXXXXX
09/18/2001 - R Initial Coop UCC1
(3510007814251)		 XXXXXXXXX XXXXX X XXXX XX XXX XXXX
06/05/2001 - R UCC3 Amendment
(3550007681955)		 XXXXXXXXXX XXXX XXXX XXXXXXX XXXX XXXX XXX
03/21/2001 - R UCC3 Termination
(3970007577597)		 XXXXXXXX XXXX XXXXX XXXXXXXX XXXXXXXX XXX
01/23/2001 - R Initial Coop UCC1
(3340007487134)		 XXXXXXXXXX XXXX XXXX XXXXXXX XXXX XXXX XXX
01/04/2001 - R UCC3 Assignment
(3620007466962)		 XXXXX X XXXXXXXXX XXXXXXXX XXXXXXX XXX
12/12/2000 - R Initial Coop UCC1
(3470007447247)		 XXXXX X XXXXXXXXX XXXXXXXX XXXXXXX XXX
11/23/1998 - R UCC3 Termination
(3690006340169)		 XXXXXXX XXXXXXXX X XXXXXXXXXXXX XXXXXXXXXXX

*Most recent recorded documents on file for this property.

R: Recorded date
D: Document date

Tax

Property taxes for 309 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
$19,391
Municipal exemptions
Recent tax assessments
Market value
$2,724,000
Assessed value
$1,225,800

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 $3,054,000 $1,374,300 $208,411 12.439% $25,924 $19,359 +2.53%
2024/25 $3,817,200 $1,717,740 $201,947 12.5% $25,243 $18,881 +12.96%
2023/24 $3,181,000 $1,431,450 $184,599 12.502% $23,377 $16,715 +7.83%
2022/23 $3,126,000 $1,406,700 $170,751 12.267% $21,239 $15,502 +11.76%
2021/22 $3,087,000 $1,389,150 $157,856 12.235% $19,615 $13,870 -28.40%
2020/21 $2,997,000 $1,348,650 $157,926 12.267% $19,666 $19,373 +1.51%
2019/20 $2,792,400 $1,256,580 $153,014 12.473% $19,376 $19,085 +8.92%
2018/19 $2,327,000 $1,047,150 $138,938 12.612% $18,141 $17,523 +7.11%
2017/18 $2,002,000 $900,900 $128,625 12.719% $16,940 $16,360 +7.00%
2016/17 $1,824,000 $820,800 $118,600 12.892% $15,898 $15,290 +0.05%
Permits

Permit information for 309 6th Avenue, Brooklyn, NY

Filing date Job type Job status Job description Initial cost
02/28/2019 Alteration
07/18/2016 Alteration type 2
08/30/2013 Alteration type 2
03/04/1996 Alteration type 3

*Most recent permits on record for this property.

More about New York City property records

Violations

HPD Violations

Violation ID Inspection date Class NOV issue date Status
11/19/2025 I
06/05/2025 A
03/20/2023 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

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 NW Corner
Station lines
F
Distance (miles)
0.344
View subway map

Access the detailed traffic volume map for 309 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. 321 William Penn 9 Yes Public K-5 1,216 0.10
Berkeley Carroll Elementary School NR No Private PK-12 940 0.19
Berkeley Carroll Elementary School NR No Private PK-12 940 0.19
St Francis Xavier School NR No Private PK-8 175 0.24
St Francis Xavier School NR No Private PK-8 175 0.24
P.S. 39 Henry Bristow 9 No Public K-5 344 0.27
P.S. 282 Park Slope 5 No Public PK, K-5 496 0.35
P.S. 282 Park Slope 5 No Public PK, K-5 496 0.35
The Montessori School of New York - Brooklyn NR No Private PK, K-6 0 0.36
Maurice Sendak Community School 8 No Public K-5 211 0.40
Nearest middle schools

Name Rating Att. zoned Type Grade range No of students Distance (miles)
Berkeley Carroll Elementary School NR No Private PK-12 940 0.19
Park Slope Collegiate 4 No Public 6-12 577 0.20
Ms 51 William Alexander 7 No Public 6-8 1,026 0.23
St Francis Xavier School NR No Private PK-8 175 0.24
Saint Saviour Catholic Academy NR No Private PK, K-8 370 0.36
St. Thomas Aquinas School NR No Private PK, K-8 0 0.42
Berkeley Carroll School NR No Private PK-12 977 0.42
P.S. 372 The Children S School NR No Public PK, K-8 436 0.42
P.S. 77 NR No Public K-12 304 0.51
Ms 266 Park Place Community Middle School 4 No Public 6-8 69 0.51
Nearest high schools

Name Rating Att. zoned Type Grade range No of students Distance (miles)
Berkeley Carroll Elementary School NR No Private PK-12 940 0.19
John Jay School for Law 3 No Public 9-12 461 0.20
Park Slope Collegiate 4 No Public 6-12 577 0.20
Millennium Brooklyn High School 10 No Public 9-12 721 0.20
Cyberarts Studio Academy 2 No Public 9-12 298 0.20
St Saviour High School NR No Private 9-12 400 0.38
Berkeley Carroll School NR No Private PK-12 977 0.42
Poly Prep Lower School NR No Private 0 0.43
Al-Madinah School NR No Private PK-12 790 0.46
P.S. 77 NR No Public K-12 304 0.51

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

Neighbors for 309 6th Avenue, Brooklyn, NY

456 2nd St, Brooklyn 433 3rd St, Brooklyn 450 2nd St, Brooklyn 315 6th Ave, Brooklyn 373 3rd St, Brooklyn 371 3rd St, Brooklyn 377 3rd St, Brooklyn 311 6th Ave, Brooklyn 313 6th Ave, Brooklyn 317 6th Ave, Brooklyn 409 3rd St, Brooklyn 307 6th Ave, Brooklyn 460 2nd St, Brooklyn 462 2nd St, Brooklyn 452 2nd St, Brooklyn 448 2nd St, Brooklyn 454 2nd St, Brooklyn 458 2nd St, Brooklyn 464 2nd St, Brooklyn 375 3rd St, Brooklyn

Nearby ZIP codes for 309 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 309 6th Avenue, Brooklyn, NY 11215?

The development at 309 6th Avenue, Brooklyn, NY 11215 was built in 1940.

What is the total square footage of 309 6th Avenue, Brooklyn, NY 11215?

309 6th Avenue, Brooklyn, NY 11215 has a total of 6,608 square feet.

What is the assessed value of 309 6th Avenue, Brooklyn, NY 11215?

309 6th Avenue, Brooklyn, NY 11215 is currently assessed at $1,225,800.

What are the property taxes for 309 6th Avenue, Brooklyn, NY 11215?

The property taxes for 309 6th Avenue, Brooklyn, NY 11215 total $25,924.

How many residential units does this building have?

This building has 4 residential unit(s).

Disclaimer

Copyright 2003-2026 by PropertyShark.com

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.

Sign up for a free account