| Primary address | 23 Union Avenue |
| Secondary address | 23 Garage Union Ave |
| Neighborhood | Mariner's Harbor |
| Zip code | 10303 |
| Borough | Staten island |
| Block & lot | 01213-0064 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Purchase date | 12/05/2025 |
| Purchase price | $520,000 |
| Tax class | Register |
| Lot sq. ft. | 4,000 |
| Lot dimensions | |
| Property type | Two Stories Detached (Small or Moderate Size, with or without Attic) (A1)
|
| Building sqft | 1,932 |
| Building dimensions | |
| Buildings on lot | 2 |
| Stories | 2 |
| Structure type | Old style |
| Building material | Frame |
| Exterior wall | Composition |
| Basement type | Full |
| Garage type | Detached, frame garage |
| Year built | 1910 |
| Frontage | Union Avenue (narrow) |
| Nearest wide street | Bush Avenue |
| Distance to wide street | Register |
| School district | 31 |
| Community district | 1 |
| Closest police station | 0.44 Miles |
| Closest fire station | 0.11 Miles |
View more neighborhood information such as transportation, nearby schools and risk designations in the dedicated tab.
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You will find all alternate addresses for the property in this section.
23 Union Avenue, Staten Island, NY 10303 was built in 1910 and has a total of 1,932 square feet.
What is the assessed value of 23 Union Avenue, Staten Island, NY 10303 and the property tax paid?Assessed at $46,740, the tax amount paid for 23 Union Avenue, Staten Island, NY 10303 is $3,881.
When was 23 Union Avenue, Staten Island, NY 10303 last sold and what was the last sale price?23 Union Avenue, Staten Island, NY 10303 was last sold in 12/05/2025 for $520,000.
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 23 Union Avenue, Staten Island, including title documents, transfer conditions, mortgages, liens, and pre-foreclosures.
| Sale date | Sale price | Buyer name | Seller name |
|---|---|---|---|
| 12/05/2025 | $520,000 | Register | Register |
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 23 Union Avenue, Staten Island, NY 10303. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.
| Tax year: | 2026-2027 |
| Property tax: | $3,881 |
| Tax assessor's market value: | $779,000 |
| Assessed value: | $46,740 |
Here's the assessment & property tax history for 23 Union Avenue, Staten Island, 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 | $652,000 | $39,120 | $18,576 | 19.843% | $3,686 | $3,686 | +230.79% |
| 2024/25 | $533,000 | $31,980 | $5,548 | 20.085% | $3,731 | $1,114 | +3.99% |
| 2023/24 | $624,000 | $37,440 | $5,335 | 20.085% | $3,670 | $1,072 | +5.88% |
| 2022/23 | $523,000 | $31,380 | $4,983 | 20.309% | $3,507 | $1,012 | +6.30% |
| 2021/22 | $473,000 | $28,380 | $4,770 | 19.963% | $3,254 | $952 | +1.43% |
The complete history of permits filed for 23 Union Avenue, Staten Island, 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 Mariner's Harbor so you can assess current trends, home values, types of properties sold and transaction volume.
View the median home sale price in Mariner's Harbor and compare it to other neighborhoods in Staten Island.
Check out recently sold homes in Staten Island and see how their prices compare.
| FEMA flood zone(s): | X (See more on map) |
| Hurricane evacuation zone: | 1 (See more on map) |
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Distance to Subway
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| Closest station | Minthorne St & Victory Bl at SE Corner | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Station lines | SIR | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Distance (miles) | 4.348 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Name | Rating | Att. zoned | Type | Grade range | No of students | Distance (miles) |
|---|---|---|---|---|---|---|
| P.S. 44 Thomas C Brown | 4 | Yes | Public | PK, K-5 | 547 | 0.34 |
| P.S. 44 Thomas C Brown | 4 | Yes | Public | PK, K-5 | 547 | 0.34 |
| St Adalbert School | NR | No | Private | PK-8 | 170 | 0.73 |
| St Adalbert School | NR | No | Private | PK-8 | 170 | 0.73 |
| New World Preparatory Charter School | 6 | No | Charter | K-8 | 740 | 0.73 |
| Name | Rating | Att. zoned | Type | Grade range | No of students | Distance (miles) |
|---|---|---|---|---|---|---|
| Is 51 Edwin Markham | 6 | Yes | Public | 6-8 | 1,205 | 1.14 |
| St Adalbert School | NR | No | Private | PK-8 | 170 | 0.73 |
| New World Preparatory Charter School | 6 | No | Charter | K-8 | 740 | 0.73 |
| Staten Island School Of Civic Leadership | 7 | No | Public | PK, K-8 | 838 | 1.14 |
| Jewish Foundation School | NR | No | Private | 1-8 | 139 | 1.55 |
| Name | Rating | Att. zoned | Type | Grade range | No of students | Distance (miles) |
|---|---|---|---|---|---|---|
| Port Richmond High School | 3 | Yes | Public | 9-12 | 1,693 | 0.81 |
| Simon Youth Academy | NR | No | Public | 9-12 | 23 | 1.79 |
| Bishop Patrick V Ahern High School | NR | No | Private | 0 | 1.82 | |
| Bishop Patrick V Ahern High School | NR | No | Private | 23 | 1.84 | |
| Moore Catholic High School | NR | No | Private | 9-12 | 394 | 1.90 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 23 Union Avenue, Staten Island, NY 10303.