| Building name | The Harbour At Bayridge |
| Primary address | 9921 4th Avenue #3a |
| Secondary address | 401-411 100th St |
| Neighborhood | Bay Ridge |
| Zip code | 11209 |
| Borough | Brooklyn |
| Block & lot | 06135-1017 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Tax class | Register |
| Lot sq. ft. | 21,937 |
| Lot dimensions | |
| Property type | Condo - Residential Unit in Elevator Building (R4)
|
| Building sqft | 1,003 |
| Buildings on lot | 1 |
| Year built | 1985 |
| Residential units (DOF) | 1 |
| School district | 20 |
| Community district | 10 |
| Closest police station | 1.74 Miles |
| Closest fire station | 0.34 Miles |
View more neighborhood information such as transportation, nearby schools and risk designations in the dedicated tab.
| Unit # | 3A |
| Square feet | 1,003 |
| Condo complex | 300118 |
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You will find all alternate addresses for the property in this section.
9921 4th Avenue #3a, Brooklyn, NY 11209 was built in 1985 and has a total of 1,003 square feet.
What is the assessed value of 9921 4th Avenue #3a, Brooklyn, NY 11209 and the property tax paid?Assessed at $51,612, the tax amount paid for 9921 4th Avenue #3a, Brooklyn, NY 11209 is $5,963.
When was 9921 4th Avenue #3a, Brooklyn, NY 11209 last sold?9921 4th Avenue #3a, Brooklyn, NY 11209 was last sold in 04/20/1999.
How many residential units does this building have?This building has 1 residential unit(s).
View property contacts like owners, building management, representatives from permits and tenants with a free account. For LLC-owned properties, access manually researched real owners and phone numbers.
Create a free account to view the complete sales history for 9921 4th Avenue #3a, Brooklyn, including title documents, transfer conditions, mortgages, liens, and pre-foreclosures.
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.
R: Recorded date
D: Document date
Access detailed property tax data for The Harbour At Bayridge - 9921 4th Avenue #3a, Brooklyn, NY 11209. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.
| Tax year: | 2026-2027 |
| Property tax: | $5,963 |
| Tax assessor's market value: | $114,693 |
| Assessed value: | $51,612 |
Here's the assessment & property tax history for 9921 4th Avenue #3a, 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 | $100,349 | $45,157 | $45,157 | 12.439% | $5,617 | $5,617 | -6.54% |
| 2024/25 | $111,122 | $50,005 | $48,082 | 12.5% | $6,010 | $6,010 | +1.08% |
| 2023/24 | $105,686 | $47,559 | $47,559 | 12.502% | $5,946 | $5,946 | -0.97% |
| 2022/23 | $111,777 | $50,300 | $48,944 | 12.267% | $6,004 | $6,004 | +6.49% |
| 2021/22 | $102,412 | $46,085 | $46,085 | 12.235% | $5,638 | $5,638 | -1.57% |
The complete history of permits filed for 9921 4th Avenue #3a, 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.
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.
Check out recently sold homes in Brooklyn and see how their prices compare.
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Distance to Subway
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| Closest station | 4th Ave & 95th St at SW Corner | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Station lines | R | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Distance (miles) | 0.229 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Name | Rating | Att. zoned | Type | Grade range | No of students | Distance (miles) |
|---|---|---|---|---|---|---|
| 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. Is 104 The Fort Hamilton School | 7 | No | Public | K-8 | 1,103 | 0.42 |
| Name | Rating | Att. zoned | Type | Grade range | No of students | Distance (miles) |
|---|---|---|---|---|---|---|
| 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 |
| P.S. Is 104 The Fort Hamilton School | 7 | No | Public | K-8 | 1,103 | 0.42 |
| Visitation Academy | NR | No | Private | PK-8 | 114 | 0.60 |
| Adelphi Academy | NR | No | Private | PK, K-12 | 0 | 0.79 |
| Name | Rating | Att. zoned | Type | Grade range | No of students | Distance (miles) |
|---|---|---|---|---|---|---|
| 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 |
| Fort Hamilton High School | 4 | No | Public | 9-12 | 3,925 | 1.04 |
| Bay Ridge Preparatory School | NR | No | Private | K-12 | 375 | 1.32 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for The Harbour At Bayridge - 9921 4th Avenue #3a, Brooklyn, NY 11209.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 123 A 2nd Pl, Brooklyn | 3,072 | 03/26/2025 | |
| 643 Vanderbilt Ave, Brooklyn | 3,135 | 11/11/2011 | |
| 297 Van Brunt St, Brooklyn | 01/08/2014 | $150,000 | |
| 164 A Lefferts Pl, Brooklyn | 09/21/2015 | $975,000 | |
| 32 Grafton St, Brooklyn | 29,400 | 11/17/2023 | |
| 155 Crystal St, Brooklyn | 2,576 | 07/10/2013 | $465,000 |
| 200 E 39th St, Brooklyn | 2,074 | 09/02/2020 | |
| 25 Tapscott St, Brooklyn | 51,591 | 05/20/1988 | |
| 2042 W 5th St, Brooklyn | 2,640 | 02/10/2022 | $1,380,000 |
| 37 Tapscott St, Brooklyn | 05/20/1988 | ||
| 488 A 17th St, Brooklyn | 1,120 | 03/19/2003 | $332,500 |
| 1355 Rogers Ave, Brooklyn | 92,144 | 11/20/2013 | $3,100,000 |
| 2002 Haring St, Brooklyn | 1,980 | 03/27/2026 | |
| 111 Bay 46 St, Brooklyn | 03/01/1996 | ||
| 103 Liberty Ave, Brooklyn | 47,602 | 06/30/2021 | |
| 4212 Fillmore Ave, Brooklyn | 1,600 | 08/04/2005 | |
| 3072 Cropsey Ave, Brooklyn | 1,560 | 03/26/1991 | |
| 1853 Bay Ridge Ave, Brooklyn | 2,026 | 09/13/2004 | $705,000 |
| 476 Pulaski St, Brooklyn | 10,295 | 04/11/2005 | $3,450,000 |
| 1473 50th St, Brooklyn | 14,132 | 03/02/2017 | $2,500,000 |
