| Building name | The Harbour At Bayridge |
| Primary address | 9921 4th Avenue #6a |
| Secondary address | 401-411 100th St |
| Neighborhood | Bay Ridge |
| Zip code | 11209 |
| Borough | Brooklyn |
| Block & lot | 06135-1047 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Purchase date | 07/25/2022 |
| Purchase price | $600,000 |
| Tax class | Register |
| Estimated property tax | $4,624 |
| 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 # | 6A |
| Square feet | 1,003 |
| Condo complex | 300118 |
New York property reports include comprehensive occupancy, development and violation information. Create a free account to access valuable data points such as:
You will find all alternate addresses for the property in this section.
9921 4th Avenue #6a, 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 #6a, Brooklyn, NY 11209 and the property tax paid?Assessed at $47,622, the tax amount paid for 9921 4th Avenue #6a, Brooklyn, NY 11209 is $5,923. For the next year, the tax amount for 9921 4th Avenue #6a, Brooklyn, NY 11209 is estimated at $4,624.
When was 9921 4th Avenue #6a, Brooklyn, NY 11209 last sold and what was the last sale price?9921 4th Avenue #6a, Brooklyn, NY 11209 was last sold in 07/25/2022 for $600,000.
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 #6a, Brooklyn, including title documents, transfer conditions, mortgages, liens, and pre-foreclosures.
*Here are the three most recent sales for this property.
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 #6a, Brooklyn, NY 11209. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.
| Tax year: | 2025-2026 |
| Property tax: | $4,259 |
| Estimated property tax: | $4,624 |
| Tax assessor's market value: | $105,827 |
| Assessed value: | $47,622 |
Here's the assessment & property tax history for 9921 4th Avenue #6a, 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 | $105,827 | $47,622 | $47,622 | 12.439% | $5,924 | $4,251 | -6.72% |
| 2024/25 | $117,188 | $52,735 | $50,707 | 12.5% | $6,338 | $4,557 | +0.34% |
| 2023/24 | $111,455 | $50,155 | $50,155 | 12.502% | $6,270 | $4,542 | -28.27% |
| 2022/23 | $117,878 | $53,045 | $51,616 | 12.267% | $6,332 | $6,332 | +6.49% |
| 2021/22 | $108,003 | $48,601 | $48,601 | 12.235% | $5,946 | $5,946 | -1.57% |
The complete history of permits filed for 9921 4th Avenue #6a, 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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Bus Routes
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| Name | 4 Av/100 St | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line | B63 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Distance (miles) | 0.019 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Name | Rating | Att. zoned | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|---|
| 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 to school (mi) |
|---|---|---|---|---|---|---|
| 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 to school (mi) |
|---|---|---|---|---|---|---|
| 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 #6a, Brooklyn, NY 11209.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 224 21st St, Brooklyn | 1,530 | 03/16/1999 | |
| 27 Bay 41 St, Brooklyn | 2,640 | 10/31/2008 | |
| 370 New Lots Ave, Brooklyn | 23,100 | 06/14/2001 | |
| 951 E 92nd St, Brooklyn | 1,728 | 03/30/2023 | $630,000 |
| 648 64th St, Brooklyn | 6,010 | 08/21/2003 | $3,795,000 |
| 7126 Bergen CT, Brooklyn | 1,776 | 10/26/2015 | |
| 7127 Bergen CT, Brooklyn | 1,776 | 02/17/2004 | $505,986 |
| 7121 Bergen CT, Brooklyn | 1,776 | 08/06/2021 | $945,000 |
| 3004 Avenue R, Brooklyn | 67,464 | 05/30/2025 | $7,360,000 |
| 232 Van Siclen Ave, Brooklyn | 2,520 | 08/23/2018 | |
| 7120 Bergen CT, Brooklyn | 1,776 | 06/29/2021 | $960,000 |
| 666 64th St, Brooklyn | 12,960 | 08/21/2003 | $3,795,000 |
| 6402 7th Ave, Brooklyn | 2,808 | 08/21/2003 | $3,795,000 |
| 1207 E 96th St, Brooklyn | 3,276 | 04/23/2003 | |
| 7125 Bergen CT, Brooklyn | 1,776 | 11/11/2005 | |
| 7118 Bergen CT, Brooklyn | 1,776 | 03/31/2025 | |
| 7124 Bergen CT, Brooklyn | 1,776 | 02/27/2004 | $501,930 |
| 340 Dahill Rd, Brooklyn | 1,428 | 12/05/2005 | $668,000 |
| 1865 Burnett St, Brooklyn | 37,940 | 05/30/2025 | $8,280,000 |
| 7119 Bergen CT, Brooklyn | 1,776 | 01/07/2025 | $1,275,000 |
