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309 86th Street, Brooklyn, NY 11209 Property Information

Also known as: 8517 Third Ave, Brooklyn, NY 11209

309 86th Street, Brooklyn, NY 11209 Property Information

Also known as: 8517 Third Ave, Brooklyn, NY 11209

  • General
  • Owner
  • Documents
  • Tax
  • Permits
  • Neighborhood
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309 86th Street, Brooklyn, NY 11209 2
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Address

Primary address 309 86th Street
Secondary address 8515 3rd Ave
Neighborhood Bay Ridge
Zip code 11209
Borough Brooklyn
Block & lot 06034-0001

Sales & Tax Overview for 309 86th Street, Brooklyn

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

Tax class
Estimated property tax $92,639

Lot & Building Information for 309 86th Street, Brooklyn

Lot sq. ft. 12,500
Lot dimensions 125.17 ft x 100 ft
Property type Walk-up Apartment - Over Six Families with Stores (C7)
Building sqft 36,329
Building dimensions 115 ft x 100 ft
Buildings on lot 2
Stories 4
Year built 1927
Construction type
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Zoning & Use for 309 86th Street, Brooklyn

Zoning
Residential units (DOF) 40
Regulated units
Commercial units 8
Residential sqft
Retail sqft

Area Overview

Walk Score
Transit Score
Bike Score


School district 20
Community district 10
Closest police station 1.11 Miles
Closest fire station 0.42 Miles

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

Other Property Data for 309 86th Street, Brooklyn

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 309 86th Street, Brooklyn, NY 11209, 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 309 86th Street, Brooklyn, NY 11209, including DOB violations, ECB violations, HPD violations and 311 complaints.

Alternate Addresses

You will find all alternate addresses for the property in this section.

  • 8515 3rd Ave, Brooklyn, NY 11209
  • 8517-8529 3rd Ave, Brooklyn, NY 11209
  • 301-311 86th St, Brooklyn, NY 11209

About 309 86th Street, Brooklyn

How many square feet does 309 86th Street, Brooklyn, NY 11209 have?

This Walk-up Apartment - Over Six Families with Stores (C7) located at 309 86th Street, Brooklyn, NY 11209 has a total of 36,329 square feet.

What is the year built & the current market value of 309 86th Street, Brooklyn, NY 11209?

309 86th Street, Brooklyn, NY 11209 was built in 1927 and has a current tax assessor's market value of $1,858,000.

How many commercial spaces does this building have?

This building has 8 commercial spaces available for lease.

Ownership Information for 309 86th Street, Brooklyn

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Property owner name for 309 86th Street, Brooklyn, NY 11209
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Building contacts for 309 86th Street, Brooklyn, NY 11209
Building management:
Representatives (from permits):
Tenants:
Real Estate Reports:
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Past Sales & Property History for 309 86th Street, Brooklyn

Create a free account to view the complete sales history for 309 86th Street, Brooklyn, including title documents, transfer conditions, mortgages, liens, and pre-foreclosures.

No recorded sales for this property.

Title Documents for 309 86th Street, Brooklyn

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
10/25/2017 - D
10/30/2017 - R
Zoning Lot Description
(2017102701364001)
10/24/2017 - D
10/30/2017 - R
Certificate
(2017102701364002)
07/09/2014 - R Initial UCC1
(2014070902954001)
05/28/2003 - R UCC3 Continuation
(2003051300550001)
03/31/2003 - D
07/01/2003 - R
Agreement
(2003051300482001)
06/04/1998 - R Mortgage
(3420006079842)
06/04/1998 - R Assignment, Mortgage
(3080006080008)
05/07/1998 - R Initial UCC1
(3480006032948)
05/13/1994 - R Agreement
(3590004275759)
01/13/1984 - R Satisfaction of Mortgage
(3000000997500)
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R: Recorded date
D: Document date

Property Taxes for 309 86th Street, Brooklyn

Access detailed property tax data for 309 86th Street, Brooklyn, NY 11209. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.

Tax year: 2025-2026
Property tax: $94,140
Estimated property tax: $92,639
Tax assessor's market value: $1,858,000
Assessed value: $836,100

Assessment History for 309 86th Street, Brooklyn

Here's the assessment & property tax history for 309 86th Street, Brooklyn, 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 $1,858,000 $836,100 $756,810 12.439% $94,140 $94,140 +2.80%
2024/25 $1,628,000 $732,600 $732,600 12.5% $91,575 $91,575 +3.22%
2023/24 $1,577,000 $709,650 $709,650 12.502% $88,720 $88,720 -4.22%
2022/23 $1,678,000 $755,100 $755,100 12.267% $92,628 $92,628 +0.86%
2021/22 $1,668,000 $750,600 $750,600 12.235% $91,836 $91,836 -13.76%

Permits for 309 86th Street, Brooklyn

The complete history of permits filed for 309 86th Street, Brooklyn, 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.

Filing date Job type Job status Job description Initial cost
10/29/2025 Alteration
06/25/2025 Alteration
07/24/2024 Alteration
05/18/2023 Alteration
07/05/2022 Alteration
06/17/2022 Alteration
12/07/2019 Alteration
06/26/2019 Alteration
04/16/2019 Alteration
11/27/2018 Alteration
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Brooklyn Commercial Market Stats

Access a detailed real estate market overview of Brooklyn so you can assess current trends, property values, types of properties sold and transaction volume. View the median price per sqft in Brooklyn and compare it to other boroughs in New York City.

Median Price/Sqft Q1/2026
$444
-15% YoY
Median Price/Sqft Q4/2025
$523
9.6% YoY
Median Price/Sqft 2025
$523
5.9% YoY

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

Risk

FEMA flood zone(s): X (See more on map)

Transportation

Distance to Subway
Closest station 4th Ave & 85th St at SW Corner
Station lines R
Distance (miles) 0.128
View subway map
Bus Routes
Name 3 Av/86 St
Line B37
Distance (miles) 0.012

Neighbors for 309 86th Street, Brooklyn

Here are the neighbors for 309 86th Street, Brooklyn, NY 11209.

Address Square feet Purchase date Purchase price
310 85th St, Brooklyn 36,329 12/28/2000
324 85th St, Brooklyn 2,600 06/18/2024 $1,620,000
326 85th St, Brooklyn 2,600 02/14/2020
239 86th St, Brooklyn 2,400 07/01/2014
235 86th St, Brooklyn 3,600 08/09/2007 $380,000
247 86th St, Brooklyn 3,600 08/30/2023 $3,400,000
249 86th St, Brooklyn 2,952 10/08/1999
314 85th St, Brooklyn 2,600 04/21/1992
245 86th St, Brooklyn 3,600 08/30/2023 $3,400,000
253 86th St, Brooklyn 2,952 01/19/1968
251 86th St, Brooklyn 2,832 03/01/2006 $900,000
257 86th St, Brooklyn 2,952 09/22/2008
332 85th St, Brooklyn 2,600 09/01/2009
229 86th St, Brooklyn 5,000 12/19/1986
318 85th St, Brooklyn 2,600 04/25/2011
320 85th St, Brooklyn 2,600 02/24/2006 $785,000
330 85th St, Brooklyn 2,600 03/14/2025
241 86th St, Brooklyn 2,400 07/01/2014
336 85th St, Brooklyn 2,600 09/06/1995
338 85th St, Brooklyn 2,170 06/14/2022
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