New York City  »  11209  »  4th Ave  »  9921 4th Ave

The Harbour At Bayridge - 9921 4th Avenue, Brooklyn, NY 11209 - Property report

Also known as: 401-411 100th St

Property image for The Harbour At Bayridge - 9921 4th Avenue, Brooklyn, NY 11209
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Property type

Special Condominium Billing Lot (R0)

Year built

1987

Lot sq. ft.

21,938

General information

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Due to this address' parcel subdivisions, this property report may contain limited information. For the full range of property data, view the property report of each individual parcel.

Address
Building name
The Harbour At Bayridge
Primary address
The Harbour At Bayridge - 9921 4th Avenue
Alternate address(es)
401-411 100th St
402-412 99th St
9911-9923 4th Ave
ZIP code
11209
Neighborhood
Bay Ridge
Borough
Brooklyn
Block & lot
06135-7501

Owner

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Building
Property type
Special Condominium Billing Lot (R0)
Building sq. ft.
60,397
Buildings on lot
1
Stories
6
Year built
1987
Basement
N
Tax
Tax year
2026-2027
Tax class
Floor area ratio (FAR)
Commercial FAR
Residential FAR
Buildable area
Zoning & Use
Zoning
Qualified opportunity zone
Residential units
52
Residential sq. ft.
Commercial units
4
Office sq. ft.
Retail sq. ft.
Lot
Frontage(s)
4 Avenue (wide)
99 Street (narrow)
100 Street (narrow)
Distance to wide street
Lot dimensions
195 ft x 113 ft
Lot sq. ft.
21,938

Area overview

Walk score
91 /100.  Walker's Paradise
Transit score
87 /100.  Excellent Transit
Bike score
76 /100.  Very Bikeable
School district
20
Community district
10
Closest police station
1.74 Miles
Closest fire station
0.34 Miles

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

Units for The Harbour At Bayridge - 9921 4th Avenue, Brooklyn, NY

Unit Sale date Sale price Sq. ft. Price/Sq. ft.
Unit 2A 03/04/2008 1,003
Unit 2B 05/20/2022 826
Unit 2C 07/17/1987 919
Unit 2D 04/20/2004 919
Unit 2E 10/15/2012 826
Unit 2F 05/23/2023 1,110
Unit 2G 09/28/2009 721
Unit 2H 08/29/2024 919
Unit 2I 06/30/2025 919
Unit 2J 10/05/2018 826
Unit 3A 04/20/1999 1,003
Unit 3B 06/30/2021 826
Unit 3C 05/16/2025 919
Unit 3D 11/06/1987 919
Unit 3E 02/13/2013 826
Unit 3F 09/29/2016 1,110
Unit 3G 05/19/2021 826
Unit 3H 12/04/2019 919
Unit 3I 02/20/1998 919
Unit 3J 12/15/2005 826
Unit 4A 05/30/2014 1,003
Unit 4B 10/21/2020 826
Unit 4C 12/21/2000 919
Unit 4D 01/13/2015 919
Unit 4E 12/11/1997 826
Unit 4F 01/26/2012 1,110
Unit 4G 04/17/1998 826
Unit 4H 01/28/2005 919
Unit 4I 12/28/2020 919
Unit 4J 04/11/2019 826
Unit 5A 08/02/2019 1,003
Unit 5B 06/11/2019 826
Unit 5C 06/30/2004 919
Unit 5D 04/25/2022 919
Unit 5E 07/29/2011 826
Unit 5F 08/08/2003 1,110
Unit 5G 06/17/2004 826
Unit 5H 11/19/2010 919
Unit 5I 12/30/2022 919
Unit 5J 01/25/2007 826
Unit 6A 07/25/2022 1,003
Unit 6B 12/01/2003 826
Unit 6C 12/01/2003 919
Unit 6D 07/03/2013 919
Unit 6E 09/15/2016 826
Unit 6F 06/10/2022 1,110
Unit 6G 01/21/2004 826
Unit 6H 04/19/2000 919
Unit 6I 06/15/2010 826
Unit 6J 05/23/2008 826
Unit L1 09/20/2023 1,005
Unit L2 09/20/2023 1,005
Unit P1 08/11/2020 2,848
Unit P2 12/23/2025 2,515
Unit P3 09/06/2017 2,115
Unit P4 09/06/2017 1,896
Ownership

Ownership information for The Harbour At Bayridge - 9921 4th 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 The Harbour At Bayridge - 9921 4th Avenue, Brooklyn, NY 11209

No recently recorded sales for this property.

More about New York City property records.

Title documents

No recently recorded documents for this property.

Tax

Property taxes for The Harbour At Bayridge - 9921 4th Avenue, Brooklyn, NY

Property tax data includes tax amount, market value and assessed value, exemptions, abatements and assessment history.

This is a condominium building, so there are no property taxes. In a condominium the property taxes are paid by the individual unit owners. If you want to see the property taxes for a particular unit, look at the property report for that unit.

More about New York City property taxes

Permits

Permit information for The Harbour At Bayridge - 9921 4th Avenue, Brooklyn, NY

Filing date Job type Job status Job description Initial cost
02/20/2024 Alteration
06/12/2022 Alteration
05/24/2022 Alteration
09/15/2021 Alteration
09/05/2019 Alteration

*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
04/11/2023 C
04/11/2023 C
04/11/2023 C

*Most recent HPD violations on record for this property.

Neighborhood

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

$501,940

-8.7% Y-o-Y

Median price/sq. ft.

$618

-5.5% 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
4th Ave & 95th St at SW Corner
Station lines
R
Distance (miles)
0.229
View subway map

Access the detailed traffic volume map for The Harbour At Bayridge - 9921 4th Avenue, Brooklyn, NY 11209 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. Is 104 The Fort Hamilton School 7 Yes Public K-8 1,103 0.42
St Patrick School NR No Private PK-8 167 0.16
St Patrick School NR No Private PK-8 167 0.16
Poly Prep Country Day School NR No Private PK-12 1,060 0.41
Poly Prep Country Day School NR No Private PK-12 1,060 0.41
P.S. 264 Bay Ridge Elementary School For The Arts 7 No Public K-5 387 0.59
Visitation Academy NR No Private PK-8 114 0.60
P.S. 185 Walter Kassenbrock 8 No Public K-5 576 0.74
Nearest middle schools

Name Rating Att. zoned Type Grade range No of students Distance (miles)
P.S. Is 104 The Fort Hamilton School 7 Yes Public K-8 1,103 0.42
St Patrick School NR No Private PK-8 167 0.16
Poly Prep Country Day School NR No Private PK-12 1,060 0.41
Visitation Academy NR No Private PK-8 114 0.60
Adelphi Academy NR No Private PK, K-12 0 0.79
Dimitrios & Georgia Kaloidis Pa NR No Private PK-8 226 0.82
P.S. 229 Dyker 7 No Public PK, K-8 1,144 1.04
Madeleine Brennan School (The) 9 No Public 6-8 1,554 1.12
Jhs 259 William Mckinley 7 No Public 6-8 1,591 1.33
Nearest high schools

Name Rating Att. zoned Type Grade range No of students Distance (miles)
Fort Hamilton High School 4 Yes Public 9-12 3,925 1.04
Fontbonne Hall Academy NR No Private 9-12 439 0.19
Poly Prep Country Day School NR No Private PK-12 1,060 0.41
Adelphi Academy NR No Private PK, K-12 0 0.79
Bay Ridge Preparatory School NR No Private K-12 375 1.32
New Utrecht High School 3 No Public 9-12 3,112 1.62
Xaverian High School NR No Private 6-12 1,537 1.65
High School of Telecommunication Arts and Technology 6 No Public 9-12 1,273 1.73
Geller House School NR No Public 6-11 8 2.07
Brooklyn Studio Secondary School 5 No Public 6-12 876 2.09

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

Neighbors for The Harbour At Bayridge - 9921 4th Avenue, Brooklyn, NY

416 99th St, Brooklyn 424 99th St, Brooklyn 432 99th St, Brooklyn 425 100th St, Brooklyn 426 99th St, Brooklyn 436 99th St, Brooklyn 441 100th St, Brooklyn 443 100th St, Brooklyn 438 99th St, Brooklyn 423 100th St, Brooklyn 431 100th St, Brooklyn 415 100th St, Brooklyn 442 99th St, Brooklyn 419 100th St, Brooklyn 435 100th St, Brooklyn 420 99th St, Brooklyn 428 99th St, Brooklyn 444 99th St, Brooklyn 427 100th St, Brooklyn 445 100th St, Brooklyn

Nearby ZIP codes for The Harbour At Bayridge - 9921 4th Avenue, Brooklyn, NY

10004, New York City, NY 10301, New York City, NY 10304, New York City, NY 11201, New York City, NY 11204, New York City, NY 11214, New York City, NY 11215, New York City, NY 11217, New York City, NY 11218, New York City, NY 11219, New York City, NY 11220, New York City, NY 11223, New York City, NY 11224, 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

Frequently asked questions

What is the year built for The Harbour At Bayridge - 9921 4th Avenue, Brooklyn, NY 11209?

The development at The Harbour At Bayridge - 9921 4th Avenue, Brooklyn, NY 11209 was built in 1987.

What is the total square footage of The Harbour At Bayridge - 9921 4th Avenue, Brooklyn, NY 11209?

The Harbour At Bayridge - 9921 4th Avenue, Brooklyn, NY 11209 has a total of 60,397 square feet.

How many residential units does this building have?

This building has 52 residential unit(s).

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