NOT LISTED FOR SALE

23 William St Central Islip, NY 11722

Estimated Value: $529,000 - $590,126

4 Beds
3 Baths
1,201 Sq Ft
$477/Sq Ft Est. Value

Sale Details

Date Sold: September 2, 2025

Last sale price $550,000 $458 Per Sq Ft

Est. 4% increase in value since last sale

Current estimated payment $3,664 / mo

28 Days on Market

Highlights

  • Ranch Style House
  • 5-minute walk to Central Islip Station
  • Fenced
  • Eat-In Kitchen
  • Bathroom on Main Level

About This Home

As of September 2025

New to the Market - 4 Bedroom, 3 Full Bath Ranch - Living Room, Eat in Kitchen, Full Finished Basement with Outside Entrance, Hi-Hats, Hardwood Floors, Large Size Rooms - 2 Zone Gas Heating, True Taxes: 8366.14 -
1st Floor - Eat In Kitchen, Living Room, 4 Bedrooms, 2 Full Baths - Downstairs: Full Basement with OSE

Last Agent to Sell the Property

Michael McLean

Long Island Home Prop LLC Brokerage Phone: 631-585-8400 License #40MC1100205 Listed on: 03/11/2025

Long Island Home Prop LLC

Last Buyer's Agent

Michael McLean

Long Island Home Prop LLC Brokerage Phone: 631-585-8400 License #40MC1100205 Listed on: 03/11/2025

Long Island Home Prop LLC

Home Details

Home Type

  • Single Family

Est. Annual Taxes

  • $8,366

Year Built

  • Built in 1962

Lot Details

  • 10,890 Sq Ft Lot
  • Fenced

Home Design

  • Ranch Style House
  • Frame Construction

Interior Spaces

  • 1,201 Sq Ft Home
  • Basement Fills Entire Space Under The House
  • Eat-In Kitchen

Bedrooms and Bathrooms

  • 4 Bedrooms
  • Bathroom on Main Level
  • 3 Full Bathrooms

Schools

  • Contact Agent Elementary School
  • Charles A Mulligan Elementary Middle School
  • Central Islip Senior High School

Utilities

  • Cooling System Mounted To A Wall/Window
  • Heating System Uses Natural Gas
  • Cesspool

Listing and Financial Details

  • Legal Lot and Block 24 / 0002
  • Assessor Parcel Number 0500-099-00-02-00-024-000

Home Details

Home Type

Single Family

Est. Annual Taxes

$8,366

Year Built

Built in 1962

Lot Details

0.25 Acres

Listing Details

  • Property Type: Residential
  • Architectural Style: Ranch
  • Property SubType: Single Family Residence
  • Year Built: 1962
  • Attribution Contact: 631-585-8400
  • Carport Y N: No
  • CurrentPrice: 550000.00
  • MlsMajorChangeType: Sold
  • CurrentPrice_By_LivingArea: 457.95171
  • ListPrice_By_LivingArea: 457.95087
  • ListPrice_By_OriginalListPrice: 1.00000
  • ListPrice_By_LotSizeAcres: 2199996.0000
  • LivingAreaSearchSqFt: 1201.00
  • CurrentPrice_By_BuildingAreaTotal: 457.95171
  • Special Features: None
  • Property Sub Type: Detached

Interior Features

  • Appliances: Refrigerator
  • Interior Amenities: First Floor Bedroom, First Floor Full Bath, Eat-in Kitchen, Open Kitchen
  • Fireplace Features: None
  • Full Bathrooms: 3
  • Basement: Full
  • Total Bedrooms: 4
  • Fireplace: No
  • Living Area: 1201
  • Basement YN: Yes

Exterior Features

  • Construction Materials: Frame
  • Fencing: Fenced
  • Pool Private: No
  • Spa: No
  • Waterfront: No

Garage/Parking

  • Garage: No

Utilities

  • Cooling: Wall/Window Unit(s)
  • Heating: Natural Gas
  • Sewer: Cesspool
  • Utilities: None
  • Water Source: Public

Condo/Co-op/Association

  • Senior Community: No
  • Association: No

Schools

  • Middle School: CHARLES A MULLIGAN ELEMENTARY SCHOOL

Lot Info

  • Horses: No
  • Lot Size Acres: 0.25
  • Lot Size Sq Ft: 10890
  • Parcel Number: 0500-099-00-02-00-024-000
  • Property Attached: No
  • Additional Parcels: No

Rental Info

  • Lease Considered: No

Tax Info

  • Tax Annual Amount: 8366.14
  • Tax Block: 0002
  • Tax Lot: 24
  • Tax Year: 2025

MLS Schools

  • Elementary School: Contact Agent
  • High School: Central Islip Senior High School
  • Middle School District: Central Islip

Ownership History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Date Name Owned For Owner Type

Purchase Details

Listed on
Mar 11, 2025
Closed on
Aug 22, 2025
Sold by
Bought by
Seller's Agent
Michael McLean
Long Island Home Prop LLC
Buyer's Agent
Michael McLean
Long Island Home Prop LLC
List Price
$549,999
Sold Price
$550,000
Premium/Discount to List
$1
0.0%
Views
47
Current Estimated Value
$573,282

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Estimated Appreciation
$23,282
Avg. Annual Appreciation
5.32%
Original Mortgage
$496,175
Interest Rate
6.56%
Mortgage Type
New Conventional

Purchase Details

Closed on
Mar 2, 2004
Sold by
Bought by

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Original Mortgage
$266,000
Interest Rate
5.71%
Mortgage Type
Purchase Money Mortgage
Source: Public Records
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Home Values in the Area

Source: Public Records

Average Home Value in this Area





Source: Public Records

Purchase History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Date Buyer Sale Price Title Company
$557,500 --
$280,000 Fidelity National Title Insu
Source: Public Records

Mortgage History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Date Status Borrower Loan Amount
Previous Owner $496,175
Previous Owner $266,000
Source: Public Records

Property History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Date Event Price List to Sale Price per Sq Ft
09/02/2025 09/02/25 Sold $550,000 0.0% $458 / Sq Ft
04/08/2025 04/08/25 Pending -- -- --
03/20/2025 03/20/25 Off Market $550,000 -- --
03/11/2025 03/11/25 For Sale $549,999 -- $458 / Sq Ft
Source: OneKey® MLS

Tax History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Year Tax Paid Tax Assessment Tax Assessment Total Assessment is a certain percentage of the fair market value that is determined by local assessors to be the total taxable value of land and additions on the property. Land Improvement
2025 -- $24,800 $7,000 $17,800
2024 -- $24,800 $7,000 $17,800
2023 -- $24,800 $7,000 $17,800
2022 $7,526 $24,800 $7,000 $17,800
2021 $7,526 $24,800 $7,000 $17,800
2020 $7,056 $24,800 $7,000 $17,800
2019 $7,526 $0 $0 $0
2018 -- $24,800 $7,000 $17,800
2017 $7,634 $24,800 $7,000 $17,800
2016 $7,573 $24,800 $7,000 $17,800
2015 -- $24,800 $7,000 $17,800
2014 -- $24,800 $7,000 $17,800
Source: Public Records

Agents Affiliated with this Home

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Map

Source: OneKey® MLS

MLS Number: 833858

OneKey® MLS

APN: 0500-099-00-02-00-024-000

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