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23 Williams Avenue, Holtsville, NY 11742 Property Information

23 Williams Avenue, Holtsville, NY 11742 Property Information

  • General
  • Owner
  • Documents
  • Tax
  • Permits
  • Neighborhood
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23 Williams Avenue, Holtsville, NY 11742
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Address

Primary address 23 Williams Avenue, Holtsville
Zip code 11742
County Suffolk
Municipality Brookhaven
Parcel ID 6843271

Sales & Tax Overview for 23 Williams Avenue, Holtsville

View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.

Sale date 10/06/2020
Sale price $369,000
Arm's length
Property tax $8,829

Lot & Building Information for 23 Williams Avenue, Holtsville

Building sqft 1,320
Building class One Family Year-Round Residence (210)
Acreage 0.17
Year built 1950
Rooms 7
Bedrooms 3
Bathrooms 2
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Zoning, Use & Area Overview

Walk Score
Transit Score
Bike Score


School district Sachem

View more neighborhood information such as transportation, nearby schools and risk designations in the dedicated tab.

Other Property Data for 23 Williams Avenue, Holtsville

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About 23 Williams Avenue, Holtsville

What is the year built & the total sq. ft. for 23 Williams Avenue, Holtsville, NY 11742?

23 Williams Avenue, Holtsville, NY 11742 was built in 1950 and has a total of 1,320 square feet.

What is the assessed value of 23 Williams Avenue, Holtsville, NY 11742 and the property tax paid?

Assessed at $2,500, the tax amount paid for 23 Williams Avenue, Holtsville, NY 11742 is $8,829.

When was 23 Williams Avenue, Holtsville, NY 11742 last sold and what was the last sale price?

23 Williams Avenue, Holtsville, NY 11742 was last sold in 10/06/2020 for $369,000.

Ownership Information

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Real Estate Reports:
Lucian Alixandrescu, May 27, 2026 NYC Office Market Ahead of National Curve: Manhattan Q1 Vacancy Drops to 13.1% 
New York City’s office market outpaced the U.S. on several major metrics in Q1, with Manhattan vacancy nearly 5 percentage points below the national benchmark, asking rents climbing against a downward national trend and flex inventory crossing 15 million square feet.
Laura Pop-Badiu, May 21, 2026 How to Find Land Boundaries: Free & Paid Methods
If you need to find land boundaries fast, you can start with a free county parcel/GIS viewer or a premium platform like PropertyShark to see an approximate parcel outline and lot data. However, keep in mind that a web-based land boundaries map is a starting point, not the legal finish line.
Laura Pop-Badiu, May 07, 2026 Locked-In Owners, Mobile Renters: Homeowners Stay Put as Renters Move 3.7x More Across Largest U.S. Cities 
Renters became the primary drivers of long-distance mobility across the largest U.S. cities, moving 3.7 times more than owners in 2024, as high mortgage rates and housing costs kept many homeowners in place.
Research 100M+ property records powered by:
  • 2000+ governmental and public data sources
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Past Sales & Property History for 23 Williams Avenue, Holtsville

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Purchase date Purchase price Buyer name Seller name
10/06/2020 $369,000
09/06/1994 $118,554
       
       
       
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Title Documents for 23 Williams Avenue, Holtsville

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.

Date Type Amount Party 1 Party 2 Doc image
10/06/2020 - D
12/07/2020 - R
Deed
(Bargain and sale)
09/06/1994 - D
09/20/1994 - R
Deed
           
           
           
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R: Recorded date
D: Document date

Property Taxes for 23 Williams Avenue, Holtsville

Access detailed property tax data for 23 Williams Avenue, Holtsville, NY 11742. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.

Tax year 2025-2026
Property tax $8,829
Market value $471,698
Assessed value $2,500

Assessment History for 23 Williams Avenue, Holtsville

Here's the assessment & property tax history for 23 Williams Avenue, Holtsville, including the evolution of the total tax rate and corresponding property tax.

Year Market value Assessment value Total tax rate Property tax Year over year change
2024-2025 $471,698 $2,500 338.342 $8,459 -17.92%
2023-2024 $462,963 $2,500 412.188 $10,305 +27.16%
2022-2023 $403,226 $2,500 324.157 $8,104 +3.72%
2021-2022 $337,838 $2,500 312.54 $7,814 +4.73%
2020-2021 $318,182 $2,450 304.524 $7,461 +1.29%

Permits for 23 Williams Avenue, Holtsville

The complete history of permits filed for 23 Williams Avenue, Holtsville, 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.

Data not available for this property.

Risk

Create a free account to unlock extended information for 23 Williams Avenue, Holtsville, including whether it's located in FEMA flood zones, floodways or special flood hazard areas, as well as the Coastal barriers resources system area (COBRA).

FEMA flood zone(s) X (See more on map)

Transportation

Access the detailed traffic volume map for 23 Williams Avenue, Holtsville to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.

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Schools

Nearest elementary schools

Name Rating Type Grade range No of students Distance to school (mi)
Long Island Baptist Academy NR Private 2-12 8 0.18
Waverly Avenue School 6 Public K-5 463 0.57
Tamarac Elementary School 7 Public K-5 443 0.87
Chippewa Elementary School 5 Public K-5 515 1.19
Lynwood Avenue School 5 Public K-5 572 1.50

Nearest middle schools

Name Rating Type Grade range No of students Distance to school (mi)
Long Island Baptist Academy NR Private 2-12 8 0.18
Sagamore Middle School 6 Public 6-8 933 0.86
Seneca Middle School 6 Public 6-8 973 1.48
Oregon Middle School 5 Public 6-8 592 2.79
Samoset Middle School 6 Public 6-8 892 3.00

Nearest high schools

Name Rating Type Grade range No of students Distance to school (mi)
Long Island Baptist Academy NR Private 2-12 8 0.18
Sachem High School East 7 Public 9-12 2,082 2.73
Sachem High School North 8 Public 9-12 1,923 3.17
Patchogue Medford High School 5 Public 9-12 2,443 3.18
Aunt T's Home Day Care NR Private PK, K-12 0 3.32

Data provided by GreatSchools.org © 2025. All rights reserved.

Neighbors for 23 Williams Avenue, Holtsville

Here are the neighbors for 23 Williams Avenue, Holtsville.

Address Square feet Purchase date Purchase price
21 Williams Ave, Holtsville 2,226
4 Clark St, Holtsville 10/09/2009 $342,000
6 Clark St, Holtsville 09/29/2008 $437,750
22 Williams Ave, Holtsville 03/16/2015 $300,000
20 Williams Ave, Holtsville
18 Williams Ave, Holtsville 1,420 09/14/2020
689 Union Ave, Holtsville 1,056 09/30/2020
28 Lowell Ave, Holtsville 1,420 08/30/2005 $411,989
26 Williams Ave, Holtsville 2,080 08/30/2006 $415,000
695 Union Ave, Holtsville 1,248 03/15/2013 $280,000
24 Williams Ave, Holtsville 1,326 08/27/2001
691 Union Ave, Holtsville 1,168 07/28/2017 $320,000
19 Williams Ave, Holtsville 1,552 07/10/2020 $405,000
697 Union Ave, Holtsville 1,558 07/13/2023
16 Lowell Ave, Holtsville 1,437 11/11/2021
18 Lowell Ave, Holtsville 1,482 09/15/2016 $289,000
24 Lowell Ave, Holtsville 1,402 07/29/1999 $47,500
27 Williams Ave, Holtsville 870 02/14/2014 $180,000
14 Clark Ave, Holtsville 1,576 05/19/2016 $365,000

Nearby ZIP Codes for 23 Williams Avenue, Holtsville

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