Suffolk County  »  11722  »  William Ave  »  14 William Ave

14 William Avenue, Central Islip, NY 11722 - Property report

Also known as: 14 William Ave

Property image for 14 William Avenue, Central Islip, NY 11722
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Property type

One Family Year-Round Residence (210)

Year built

1948

Acreage

0.21

Sale price

$325,000

General information

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Access up-to-date information from property owner names to sales history, deeds, tax info, mortgages, development data, planimetric maps and more.

Address
Primary address
14 William Avenue
ZIP code
11722
County
Suffolk
Village (SWIS code)
472889
Parcel ID
98-2-9

Owner

Find out who owns 14 William Avenue, Central Islip, NY 11722. Uncover corporate and individual owners with a free account.

Sales
Sale date
02/19/2019
Sale price
$325,000
Arm's length
Tax
Tax year
2025-2026
Current property tax
$9,358
Zoning & Use
Zoning
Residential (B)
Building
Property type
One Family Year-Round Residence (210)
Building sq. ft.
1,447
Year built
1948
Lot
Acreage
0.21

Area overview

Walk score
64 /100.  Somewhat Walkable
Transit score
0 /100.  Minimal Transit
Bike score
52 /100.  Bikeable
School district
472813

View more such as transportation, nearby schools and risk designations.

Ownership

Ownership information for 14 William Avenue, Central Islip, NY

Property owner name
Registered owner
Source
Deed
Owner contact information
Phone number
Owner address
Documents

Sales history for 14 William Avenue, Central Islip, NY 11722

Sale date Sale price Buyer name Seller name
02/19/2019 $325,000 XXXXXX XXXX X; XXXX XXXXXX X; XXXXXXX XXXXXXXXX XXXXXXX XXXXXXX X; XXXXXXX XXXXXXX X
07/24/2018 $220,000 XXXXXXX XXXXXXX X XXXXXXXXXX XXXXXXX XXXX XXXXXXX XXX
04/06/2017 $174,000 XXXXXXXXXX XXXXXXX XXXX XXXXXXX XXX XXXXXXX XXXXXXXXX X; XXXXX XXXXX

*Most recent sales on record for this property.

More about Suffolk County property records.

Title documents

Date Type Amount Party 1 Party 2
09/10/2024 - R
03/12/2024 - D		 Assignment XXXXXX X XXXXX
11/22/2023 - R
10/06/2023 - D		 Assignment XXXX XX XXXXXXX XX XXXXXXXX XXXXXXXXX XXXXXXX
04/01/2021 - R Mortgage
(Gap Mortgage)		 XXXXXXX XXXXXXXXX XXXXXXX XXXXXXXX XXXX
02/09/2021 - R
01/26/2021 - D		 Discharge XXXX X XXXXXXXXXX XXXX XX XXX XXXX XXXXXXXX XX XXX
02/26/2019 - R
02/19/2019 - D		 Deed XXXXXXX XXXXXXX X XXXXXX XXXX X
02/26/2019 - R Mortgage XXXXXXX XXXXXXXXX XXXXXXX XXXXXXXX XXXX
08/14/2018 - R
07/24/2018 - D		 Deed XXXXXXXXXX XXXXXXX XXXX XXXXXXX XXX XXXXXXX XXXXXXX X
05/24/2017 - R
04/06/2017 - D		 Deed XXXXXXX XXXXXXXXX X XXXXXXXXXX XXXXXXX XXXX XXXXXXX XXX
10/08/2002 - R
09/20/2002 - D		 Deed XXXXXX XXXXX XXX XXXXXXXXX XXXXXXX X XX
03/16/2002 - R
02/25/2002 - D		 Deed XXXXX, XXXX XXXXXXXXX XXXXXX XXXXX XXX

*Most recent recorded documents on file for this property.

R: Recorded date
D: Document date

Tax

Property taxes for 14 William Avenue, Central Islip, NY

Property tax data includes tax amount, market value and assessed value, exemptions, abatements and assessment history.

Current property tax
Tax year
2025-2026
Property tax
$9,358
Recent tax assessments
Market value
$432,394
Assessed value
$30,700

More about Suffolk County Property Taxes

Assessment history

See the assessment and property tax history, including the evolution of the total tax rate and corresponding property tax amount.

Tax year Market value Assessed value Tax rate Property tax Y-o-Y change
2025-2026 $432,394 $30,700 30.481 $9,358 +3.08%
2024-2025 $432,394 $30,700 29.569 $9,078 +5.71%
2023-2024 $421,703 $30,700 27.973 $8,588 -1.12%
2022-2023 $370,773 $30,700 28.29 $8,685 +0.97%
2021-2022 $330,819 $30,700 28.019 $8,602 -2.89%
2020-2021 $316,495 $30,700 28.854 $8,858 +15.31%
2019-2020 $243,172 $27,600 27.834 $7,682 +4.38%
2018-2019 $243,172 $27,600 26.667 $7,360 +0.58%
2017-2018 $227,723 $27,600 26.513 $7,318 +3.23%
2016-2017 $217,323 $27,600 25.684 $7,089 -1.73%
Permits

Permit information for 14 William Avenue, Central Islip, NY

No recently recorded permits for this property.

Neighborhood

Risk

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FEMA flood zones

FEMA flood zones
X

Transportation

Daily traffic map
View daily traffic map

Access the detailed traffic volume map for 14 William Avenue, Central Islip, NY 11722 to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.

Schools

Nearest elementary schools

Name Rating Type Grade range No of students Distance (miles)
Anthony Alfano Elementary School 5 Public PK, K-6 586 0.17
Anthony Alfano Elementary School 5 Public PK, K-6 586 0.17
Our Lady Of Providence Regional School NR Private PK-8 251 0.51
Our Lady Of Providence Regional School NR Private PK-8 251 0.51
Francis J O Neill School 5 Public K-6 614 0.52
Charles A Mulligan School 4 Public K-6 981 0.52
Cordello Avenue Elementary School 4 Public K-6 507 0.73
Bretton Woods Elementary School 7 Public PK, K-5 512 1.33
Bretton Woods Elementary School 7 Public PK, K-5 512 1.33
Marguerite L Mulvey School 5 Public K-6 526 1.42
Nearest middle schools

Name Rating Type Grade range No of students Distance (miles)
Our Lady Of Providence Regional School NR Private PK-8 251 0.51
Ralph Reed School 3 Public 7-8 1,149 0.62
Gersh Academy NR Private 6-12 0 1.68
East Middle School 4 Public 6-8 1,159 1.84
Hauppauge Middle School 6 Public 6-8 748 2.12
Ivy League School NR Private PK-8 253 2.47
Ivy League School NR Private PK-8 224 2.47
MDQ Academy NR Private PK-12 412 2.51
South Middle School 3 Public 6-8 1,033 3.07
East Islip Middle School 6 Public 6-8 804 3.29
Nearest high schools

Name Rating Type Grade range No of students Distance (miles)
Central Islip Senior High School 3 Public 9-12 2,576 0.33
Gersh Academy NR Private 6-12 0 1.68
Hauppauge High School 9 Public 9-12 1,079 1.96
MDQ Academy NR Private PK-12 412 2.51
Brentwood High School 3 Public 9-12 4,641 3.10
East Islip High School 8 Public 9-12 1,145 3.17
Connetquot High School 8 Public 9-12 1,757 3.44
Freshman Center NR Public 9 1,247 3.44
Smithtown Christian School NR Private PK, K-12 529 3.86
Developmental Disabilities Institute NR Private 222 3.99

Data provided by GreatSchools.org © 2026. All rights reserved.

Neighbors for 14 William Avenue, Central Islip, NY

195 Allwood Ave, Central Islip 153 Thomas St, Brentwood 1170 Walnut Ave, Bohemia 74 Greenwood Rd, Bay Shore 211 Oakwood Ave, Bayport 39 Greenwich CT, Holbrook 10 Trail Blazer CT, Holbrook 77 Hilltop Dr, Brentwood 22 Dekalb Ave, Brentwood 15 Gladstone Ave, West Islip 265 Earle St, Central Islip 8 Chatham Dr, Oakdale 81 Vanderbilt Ave, Central Islip 344 Half Mile Rd, Central Islip 67 Roosevelt St, Islip Terrace 5 Quality St, Oakdale 1501 Ohio Ave, Bay Shore 855 Spur Dr N, Bay Shore 59 Crosby St, Sayville 37 Greenwich CT, Holbrook

Nearby ZIP codes for 14 William Avenue, Central Islip, NY

11706, Suffolk County, NY 11716, Suffolk County, NY 11717, Suffolk County, NY 11718, Suffolk County, NY 11725, Suffolk County, NY 11730, Suffolk County, NY 11739, Suffolk County, NY 11749, Suffolk County, NY 11751, Suffolk County, NY 11752, Suffolk County, NY 11754, Suffolk County, NY 11755, Suffolk County, NY 11767, Suffolk County, NY 11769, Suffolk County, NY 11779, Suffolk County, NY 11780, Suffolk County, NY 11787, Suffolk County, NY 11788, Suffolk County, NY 11795, Suffolk County, NY 11796, Suffolk County, NY

Frequently asked questions

What is the year built for 14 William Avenue, Central Islip, NY 11722?

The development at 14 William Avenue, Central Islip, NY 11722 was built in 1948.

What is the total square footage of 14 William Avenue, Central Islip, NY 11722?

14 William Avenue, Central Islip, NY 11722 has a total of 1,447 square feet.

When was 14 William Avenue, Central Islip, NY 11722 last sold and what was the sale price?

14 William Avenue, Central Islip, NY 11722 was last sold on 02/19/2019 for $325,000.

What is the assessed value of 14 William Avenue, Central Islip, NY 11722?

14 William Avenue, Central Islip, NY 11722 is currently assessed at $30,700.

What are the property taxes for 14 William Avenue, Central Islip, NY 11722?

The property taxes for 14 William Avenue, Central Islip, NY 11722 total $9,357.

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