20 Mapleton Ave is a 2,897 square foot multi-family home on a 3,500 square foot lot. - it last sold on May 28, 2004 for $200,000. Based on Redfin's Staten Island data, we estimate the home's value is $945,033.
Multi-familyProperty Type
1920Year Built
3,500 sq ftLot Size
$326Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$945,033
$745K since sold in May 2004$20K since September
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 10.9% higher than the average sale price ($852K) of 6 comparable homes.
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Zoning and permits
Zoning
Permits
R3-1
Low-Density Non-Contextual Residence District
R3-1 Non-contextual districts are the lowest density districts that allow semi-detached one- and two-family residences, as well as detached homes. R3-1 districts generally follow existing patterns of development in the Bronx, Queens, Staten Island and south Brooklyn.; In R3-1 districts, the minimum lot width for detached houses is 40 feet; semi-detached buildings must be on zoning lots that are at least 18 feet wide. For both detached and semi-detached houses, the maximum lot coverage is 35. percent and the 0.5 floor area ratio (FAR) may be increased by an attic allowance of up to 20 percent for the inclusion of space beneath a pitched roof. The perimeter wall may rise to 21 feet before sloping or being set back to a maximum building height of 35 feet. The front yard must be at least 15 feet deep. Two side yards with a minimum combined width of 13 feet are required for a detached residence; one eight foot side yard is required for each semi-detached residence. All parking must be located in the side or rear yard or in the garage. An in-house garage is permitted in a semi-detached house, or in a detached house if the lot is 40 feet or wider. One off-street parking space is required for each dwelling unit.
Permitted uses
Include but are not limited to:
Greenhouse / nursery
Community / recreation center
Religious facility
Housing-Single unit
Housing-Other
Library
Museum / gallery
Golf related
Park & open space
Dec 22, 2020 • Final
Alteration
Install a new curb cut.
Grading
Permit history is from public records and may be incomplete or inaccurate. Redfin and its agents make no representations about the property condition or permit status. Buyers should independently verify all information.
Property details
Exterior
Property Information
Subdivision Name: NORTH BEACH PARK
Gross Sq. Ft: 2,897
# of Units: 2
# of Stories: 2
Lot Information
# of Buildings: 1
Land Sq. Ft: 3,500
Legal Lot Number: 21
Legal Block Number: 3800
Acres: 0.0803
Depth Footage: 100
Front Footage: 35
Zoning Code: R3-1
County Use Description: 2-FMLY FRAME
Location Information
Parcel Location Influence: Corner
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: —
Baths: —
Sq. Ft.: 2,897
Stories: 2.0
Lot Size: 3,500 square feet
Style: Multi-Family (2-4 Unit)
Year Built: 1920
Year Renovated: 1920
County: Richmond County
APN: 038000021
Home facts updated by county records on Sep 8, 2026
Around this home
Schools
PS 38 George Cromwell
Public PreK-5 • Assigned • 0.3mi
8/10
IS 2 George L Egbert
Public 6-8 • Assigned • 0.3mi
4/10
New Dorp High School
Public 9-12 • Assigned • 0.8mi
4/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
7/10 Flood Factor
Estimated 70-78% chance of a flood reaching the building in the next 30 years
4/10 Fire Factor
2% chance of being in a wildfire in next 30 years
8/10 Heat Factor
7 days above 97° expected this year, 16 days in 30 years
6/10 Wind Factor
65% chance of strong winds in next 30 years
4/10 Air Factor
5 unhealthy days expected this year, 7 days in 30 years
Provided by First Street
Historical weather
Staten Island, NY • 10306
Average low and high temperatures (°F)
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86
71
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65
77
63
67
51
56
42
41
29
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Sun exposure
In this area, properties receive around 8.6 hours in
June and 4.4 hours in December, placing it below the
U.S. average for solar exposure.
8.6 hrs
4.4 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$898,000 – $1.09M
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