18 Udalia Rd is a 1,131 square foot house on a 5,663 square foot lot. - it last sold on July 27, 2018 for $439,000. Based on Redfin's West Islip data, we estimate the home's value is $672,160.
Single-familyProperty Type
1930Year Built
5,663 sq ftLot Size
$594Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$672,160
$233K since sold in July 2018$9,000 since September
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 1.4% higher than the average sale price ($663K) of 5 comparable homes.
Great Opportunity! This House Is Being Sold As Is. Roof 10 Years, Pella Windows 20 Yrs, Newer Oil Burner,Updateded 200 Amp Electric, House Connected To Gas, Gas Dryer And Gas Cooking, New Refrigerator, New Dishwasher, Walking To Paul J Belew Elementary,Beach Street Middle And The West Islip High School, Additional information: Appearance:Fair
Year
Property tax
Land + Additions
Assessment*
2026
$11,618
$7,500 + $28,500
$36,000
2025
$11,618 (+2.7%)
$7,500 + $28,500
$36,000
2024
$11,313 (+5.6%)
$7,500 + $28,500
$36,000
2023
$10,716 (−0.3%)
$7,500 + $28,500
$36,000
2022
$10,743
$7,500 + $28,500
$36,000
2021
$10,743 (+2.6%)
$7,500 + $28,500
$36,000
2020
$10,467 (+2.4%)
$7,500 + $28,500
$36,000
2019
$10,223 (+22.6%)
$7,500 + $28,500
$36,000
2018
$8,342 (−4.4%)
$7,500 + $22,000
$29,500
2017
$8,724 (+6.8%)
$7,500 + $22,000
$29,500
2016
$8,172 (−4.5%)
$7,500 + $23,900
$31,400
2015
$8,558 (+16.5%)
$7,500 + $23,900
$31,400
2014
$7,346 (+3.8%)
$7,500 + $23,900
$31,400
2013
$7,075 (−12.9%)
$7,500 + $23,900
$31,400
2012
$8,125 (+5.1%)
$7,500 + $23,900
$31,400
2011
$7,731 (+4.5%)
$7,500 + $23,900
$31,400
2010
$7,401 (+0.8%)
$7,500 + $23,900
$31,400
2009
$7,339
$7,500 + $23,900
$31,400
Tax history for 18 Udalia Rd
Year
Property tax
Land + Additions
Assessment*
2026
$11,618
$7,500 + $28,500
$36,000
2025
$11,618 (+2.7%)
$7,500 + $28,500
$36,000
2024
$11,313 (+5.6%)
$7,500 + $28,500
$36,000
2023
$10,716 (−0.3%)
$7,500 + $28,500
$36,000
2022
$10,743
$7,500 + $28,500
$36,000
2021
$10,743 (+2.6%)
$7,500 + $28,500
$36,000
2020
$10,467 (+2.4%)
$7,500 + $28,500
$36,000
2019
$10,223 (+22.6%)
$7,500 + $28,500
$36,000
2018
$8,342 (−4.4%)
$7,500 + $22,000
$29,500
2017
$8,724 (+6.8%)
$7,500 + $22,000
$29,500
2016
$8,172 (−4.5%)
$7,500 + $23,900
$31,400
2015
$8,558 (+16.5%)
$7,500 + $23,900
$31,400
2014
$7,346 (+3.8%)
$7,500 + $23,900
$31,400
2013
$7,075 (−12.9%)
$7,500 + $23,900
$31,400
2012
$8,125 (+5.1%)
$7,500 + $23,900
$31,400
2011
$7,731 (+4.5%)
$7,500 + $23,900
$31,400
2010
$7,401 (+0.8%)
$7,500 + $23,900
$31,400
2009
$7,339
$7,500 + $23,900
$31,400
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Property details
Exterior
Property Information
Subdivision Name: WEST ISLIP HOME SITES
Living Sq. Ft: 1,131
Ground Floor Sq. Ft: 722
Building Sq. Ft: 1,443
Parking & Garage Information
Parking Type: Detached Garage
Garage/Parking Sq. Ft: 240
Garage / Carport Type: Detached
Lot Information
# of Buildings: 1
Land Sq. Ft: 5,663
Legal Lot Number: 11
Legal Block Number: 0001
Municipality Name: ISLIP
Acres: 0.13
Depth Footage: 100
Front Footage: 60
Zoning Code: B
State Use Description: SINGLE FAMILY RESID
Financial
Assessor Information
Assessment Year: 2025
Public facts
Beds: —
Baths: —
Sq. Ft.: 1,131
Stories: —
Lot Size: 5,663 square feet
Style: Single Family Residential
Year Built: 1930
Year Renovated: —
County: Suffolk County
APN: 4728890500467000100011000
Home facts updated by county records on Aug 31, 2026
Around this home
Schools
Paul J Bellew Elementary School
Public PreK-5 • Assigned • 0.2mi
6/10
Beach Street Middle School
Public 6-8 • Assigned • 0.2mi
5/10
West Islip Senior High School
Public 9-12 • Assigned • 0.2mi
8/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
1/10 Flood Factor
Minimal risk of a flood reaching the building in the next 30 years
1/10 Fire Factor
Unlikely to be in a wildfire in next 30 years
5/10 Heat Factor
7 days above 94° expected this year, 17 days in 30 years
6/10 Wind Factor
65% chance of strong winds in next 30 years
3/10 Air Factor
3 unhealthy days expected this year, 4 days in 30 years
Provided by First Street
Historical weather
West Islip, NY • 11795
Average low and high temperatures (°F)
37
25
39
26
51
36
59
44
67
54
79
64
83
70
79
64
76
61
66
51
56
40
42
29
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
In this area, properties receive around 8.8 hours in
June and 4.5 hours in December, which is comparable to the
U.S. average for solar exposure.
8.8 hrs
4.5 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$639,000 – $773,000
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