| Primary address | 21 Simonson Avenue |
| Neighborhood | Mariner's Harbor |
| Zip code | 10303 |
| Borough | Staten island |
| Block & lot | 01160-0045 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Tax class | Register |
| Estimated property tax | $913 |
| Lot sqft | 2,974 |
| Lot dimensions | |
| Building class | Two Family Frame (B2) |
| Building sqft | 1,776 |
| Building dimensions | |
| Buildings on lot | 1 |
| Stories | 2 |
| Structure type | Old style |
| Building material | Frame |
| Exterior wall | Composition |
| Basement type | Full |
| Year built | 1899 |
| Frontage(s) | Simonson Avenue (narrow) |
| Nearest wide street | Walloon Street |
| Distance to wide street | Register |
| School district | 31 |
| Community district | 1 |
| Closest police station | 0.10 Miles |
| Closest fire station | 0.43 Miles |
View more neighborhood information such as transportation, nearby schools and risk designations in the dedicated tab.
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21 Simonson Avenue, Staten Island, NY 10303 was built in 1899 and has a total of 1,776 square feet.
What is the assessed value of 21 Simonson Avenue, Staten Island, NY 10303 and the property tax paid?Assessed at $32,700, the tax amount paid for 21 Simonson Avenue, Staten Island, NY 10303 is $803. For the next year, the tax amount for 21 Simonson Avenue, Staten Island, NY 10303 is estimated at $913.
How many residential units does this building have?This building has 2 residential unit(s).
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Create a free account to view the complete sales history for 21 Simonson Avenue, Staten Island, including title documents, transfer conditions, mortgages, liens, and pre-foreclosures.
Access detailed property tax data for 21 Simonson Avenue, Staten Island, NY 10303. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.
| Tax year: | 2025-2026 |
| Property tax: | $804 |
| Estimated property tax: | $913 |
| Tax assessor's market value: | $545,000 |
| Assessed value: | $32,700 |
| Exemptions granted by city: | Register |
Here's the assessment & property tax history for 21 Simonson 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 | $545,000 | $32,700 | $4,050 | 19.843% | $3,796 | $804 | +1.73% |
| 2024/25 | $525,000 | $31,500 | $3,933 | 20.085% | $3,626 | $790 | -63.64% |
| 2023/24 | $504,000 | $30,240 | $10,817 | 20.085% | $3,454 | $2,173 | +192.45% |
| 2022/23 | $416,000 | $24,960 | $3,658 | 20.309% | $3,492 | $743 | -1.86% |
| 2021/22 | $402,000 | $24,120 | $3,791 | 19.963% | $3,368 | $757 | +2.92% |
The complete history of permits filed for 21 Simonson 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: | 2 (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) | 4.007 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Bus Routes
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| Name | Richmond Ter/Simonson Av | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line | S40 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Distance (miles) | 0.052 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Name | Rating | Att. zoned | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|---|
| P.S. 22 Graniteville | 5 | Yes | Public | PK, K-5 | 786 | 0.78 |
| P.S. 22 Graniteville | 5 | Yes | Public | PK, K-5 | 786 | 0.78 |
| P.S. 44 Thomas C Brown | 4 | No | Public | PK, K-5 | 547 | 0.46 |
| P.S. 44 Thomas C Brown | 4 | No | Public | PK, K-5 | 547 | 0.46 |
| P.S. 21 Margaret Emery Elm Park | 6 | No | Public | PK, K-5 | 393 | 0.49 |
| Name | Rating | Att. zoned | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|---|
| Is 51 Edwin Markham | 6 | Yes | Public | 6-8 | 1,205 | 0.99 |
| St Adalbert School | NR | No | Private | PK-8 | 170 | 0.52 |
| New World Preparatory Charter School | 6 | No | Charter | K-8 | 740 | 0.52 |
| Staten Island School Of Civic Leadership | 7 | No | Public | PK, K-8 | 838 | 1.30 |
| Our Lady Of Mt Carmel-St Benedicta School | NR | No | Private | PK-8 | 155 | 1.38 |
| Name | Rating | Att. zoned | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|---|
| Port Richmond High School | 3 | Yes | Public | 9-12 | 1,693 | 0.47 |
| Holy Family Academy | NR | No | Private | 9-12 | 126 | 1.68 |
| Yeshiva Tifereth Torah | NR | No | Private | 9-12 | 0 | 1.70 |
| Bishop Patrick V Ahern High School | NR | No | Private | 0 | 1.94 | |
| Simon Youth Academy | NR | No | Public | 9-12 | 23 | 1.94 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 21 Simonson Avenue, Staten Island, NY 10303.