New York City » 11209 » 4th Ave » 9729 4th Ave

9729 4th Avenue, Brooklyn, NY 11209 Property Information

Q: How many residential units does this building have?

This building has 8 residential units and 2 commercial spaces.

Also known as: 9731 Fourth Ave, Brooklyn, NY 11209

9729 4th Avenue, Brooklyn, NY 11209 Property Information

Also known as: 9731 Fourth Ave, Brooklyn, NY 11209

Due to the nature of this address' parcel subdivisions, there may be only limited information available in this property report. To explore the full range of property information for this address, log in or create a free account and view the property reports of each individual parcel.

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Address

Primary address	9729 4th Avenue
Secondary address	9731 4th Ave
Neighborhood	Bay Ridge

Zip code	11209
Borough	Brooklyn
Block & lot	06127-7501

Sales & Tax Overview for 9729 4th Avenue, Brooklyn

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

Tax class	Register

Lot & Building Information for 9729 4th Avenue, Brooklyn

Lot sq. ft.	3,980
Lot dimensions	41.75 ft x 100.83 ft
Property type	Special Condominium Billing Lot (R0)
Building sqft	7,428
Building dimensions	41.75 ft x 60 ft
Buildings on lot	2
Stories	3

Basement type	Full
Year built	1985
Frontage(s)	Marine Avenue (wide) 4 Avenue (wide)

Zoning & Use for 9729 4th Avenue, Brooklyn

Zoning	Register
Residential units (DOF)	8

Commercial units	2
Residential sqft	Register

Units & Related Parcels

Unit	Sale Date	Sale Price	Sqft	Price/Sqft
Unit B2	05/01/2008		760
Unit B2	01/04/2008	Register	400	Register
Unit B3	11/01/2023	Register	400	Register
Unit B3	10/22/2024	Register	400	Register
Unit C2	04/26/2016	Register	577	Register
Unit C2	01/24/2011		577
Unit C3	10/14/2022		577
Unit C3	04/05/2017	Register	577	Register
Unit COM1	08/14/2009	Register	1,254	Register
Unit COM2	04/18/1996		1,254

Area Overview

Walk Score

Transit Score

Bike Score

School district	20
Community district	10

Closest police station	1.73 Miles
Closest fire station	0.26 Miles

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

Other Property Data for 9729 4th Avenue, Brooklyn

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Floor area ratio (FAR) for 9729 4th Avenue, 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 9729 4th Avenue, 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.

9731 4th Ave, Brooklyn, NY 11209

About 9729 4th Avenue, Brooklyn

What is the year built & the total sq. ft. for 9729 4th Avenue, Brooklyn, NY 11209?

9729 4th Avenue, Brooklyn, NY 11209 was built in 1985 and has a total of 7,428 square feet.

How many residential units does this building have?

This building has 8 residential unit(s) and 2 commercial spaces.

Ownership Information for 9729 4th Avenue, Brooklyn

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Property owner name for 9729 4th Avenue, Brooklyn, NY 11209

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Building contacts for 9729 4th Avenue, Brooklyn, NY 11209

Building management:	Register
Representatives (from permits):	Register
Tenants:	Register

Commercial Real Estate nearby

Real Estate Reports:

Eliza Theiss, Apr 23, 2026 $4.6M Hudson Yards Maintains Top Spot, Luxury Sales in Malba Set $2.5M Price Record for Queens

Despite prices declining, Hudson Yards remained the most expensive NYC neighborhood, but TriBeCa’s growth closed the gap to under $400,000, while Malba set a new historic price record for Queens at $2.5 million, securing the highest ranking ever for the borough at #5.

Eliza Theiss, Mar 19, 2026 Cheaper in the City? Nearly 100 Communities in Suburban NYC Surpass $1M

New Yorkers planning a move to the suburbs increasingly find their options limited, after suburban home values shot up twice as fast as NYC medians over the last decade. While larger homes and better prices were long the norm outside the five boroughs, today, many NYC buyers find their option restricted to a handful of suburban markets.

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Past Sales & Property History for 9729 4th Avenue, Brooklyn

Create a free account to view the complete sales history for 9729 4th Avenue, Brooklyn, including title documents, transfer conditions, mortgages, liens, and pre-foreclosures.

No recorded sales for this property.

Title Documents for 9729 4th Avenue, Brooklyn

Data not available for this property.

Assessment History for 9729 4th Avenue, Brooklyn

Data not available for this property.

Permits for 9729 4th Avenue, Brooklyn

The complete history of permits filed for 9729 4th Avenue, 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.

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More about New York City Property Records

Bay Ridge Residential Market Stats

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

Median Sale Price

$460,000

-7.1% YoY

Median Price/Sqft

$816

7.8% YoY

Brooklyn Median Sale Price

$885,000

2.5% 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 & 95th St at SW Corner

Station lines

Distance (miles)

0.142

View subway map

Bus Routes
Name	4 Av/Marine Av
Line	B63
Distance (miles)	0.014

Schools

Nearest elementary schools

Name	Rating	Att. zoned	Type	Grade range	No of students	Distance to school (mi)
P.S. Is 104 The Fort Hamilton School	7	Yes	Public	K-8	1,103	0.33
St Patrick School	NR	No	Private	PK-8	167	0.07
St Patrick School	NR	No	Private	PK-8	167	0.07
Poly Prep Country Day School	NR	No	Private	PK-12	1,060	0.38
Poly Prep Country Day School	NR	No	Private	PK-12	1,060	0.38

Nearest middle schools

Name	Rating	Att. zoned	Type	Grade range	No of students	Distance to school (mi)
P.S. Is 104 The Fort Hamilton School	7	Yes	Public	K-8	1,103	0.33
St Patrick School	NR	No	Private	PK-8	167	0.07
Poly Prep Country Day School	NR	No	Private	PK-12	1,060	0.38
Visitation Academy	NR	No	Private	PK-8	114	0.54
Adelphi Academy	NR	No	Private	PK, K-12	0	0.72

Nearest high schools

Name	Rating	Att. zoned	Type	Grade range	No of students	Distance to school (mi)
Fort Hamilton High School	4	Yes	Public	9-12	3,925	0.99
Fontbonne Hall Academy	NR	No	Private	9-12	439	0.23
Poly Prep Country Day School	NR	No	Private	PK-12	1,060	0.38
Adelphi Academy	NR	No	Private	PK, K-12	0	0.72
Bay Ridge Preparatory School	NR	No	Private	K-12	375	1.24

Neighbors for 9729 4th Avenue, Brooklyn

Here are the neighbors for 9729 4th Avenue, Brooklyn, NY 11209.

Address	Square feet	Purchase date	Purchase price
9732 Ft Hamilton Pkwy, Brooklyn	2,370	08/14/2017
126 97th St, Brooklyn	3,296	05/08/1997
9801 Shore Rd, Brooklyn	103,200	04/27/1984
421 Marine Ave, Brooklyn	1,574	03/18/2022	$1,140,000
449 Marine Ave, Brooklyn	936	03/24/2014
118 97th St, Brooklyn	3,544
124 97th St, Brooklyn	3,692	03/04/2021
441 Marine Ave, Brooklyn	936	08/25/2023	$700,000
443 A Marine Ave, Brooklyn	936	08/07/2003	$360,000
9701 Shore Rd, Brooklyn	114,764	06/17/1987
445 Marine Ave, Brooklyn	936	05/28/1998
9704 Ft Hamilton Pkwy, Brooklyn	4,200	07/31/2002
9702 Ft Hamilton Pkwy, Brooklyn	10,383	11/23/2005
9747 Shore Rd, Brooklyn	71,346	06/29/1998
120 97th St, Brooklyn	3,580	01/17/2002
128 97th St, Brooklyn	3,296	07/02/2010
443 Marine Ave, Brooklyn	936	11/04/2022	$680,000
116 97th St, Brooklyn	3,583	12/23/2003
130 97th St, Brooklyn	3,296	07/16/1997
447 Marine Ave, Brooklyn	936	12/19/1995