Suffolk County  »  11706  »  W William St  »  20 W William St

20 West William Street, Bay Shore, NY 11706 - Property report

Also known as: 20 W William St

Property image for 20 West William Street, Bay Shore, NY 11706
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Property type

One Family Year-Round Residence (210)

Year built

1954

Acreage

0.3

Sale price

$316,000

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
20 West William Street
ZIP code
11706
County
Suffolk
Village (SWIS code)
472889
Parcel ID
341-2-70

Owner

Find out who owns 20 West William Street, Bay Shore, NY 11706. Uncover corporate and individual owners with a free account.

Sales
Sale date
12/10/2020
Sale price
$316,000
Arm's length
Tax
Tax year
2025-2026
Current property tax
$8,901
Zoning & Use
Zoning
Residential (B)
Building
Property type
One Family Year-Round Residence (210)
Building sq. ft.
1,112
Year built
1954
Lot
Acreage
0.3

Area overview

Walk score
50 /100.  Somewhat Walkable
Transit score
0 /100.  Minimal Transit
Bike score
47 /100.  Somewhat Bikeable
School district
472801

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

Ownership

Ownership information for 20 West William Street, Bay Shore, NY

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

Sales history for 20 West William Street, Bay Shore, NY 11706

Sale date Sale price Buyer name Seller name
12/10/2020 $316,000 XXXXXXX XXXXXXXXX; XXXXXXX XXXX XXXXXXX XXXXX; XXXXXX XXXXX X
10/25/2017 $225,000 XXXXXXX XXXX XXXXX; XXXXXX XXXXX X XXXX XXXX XXXXXXXXX; XXXX XXXXXXXXX
03/30/2000 $95,000 XXXXXXXXX XXXX/XXXX XX. XXXXX XXXXXXXX XXXXXX

*Most recent sales on record for this property.

More about Suffolk County property records.

Title documents

Date Type Amount Party 1 Party 2
02/10/2021 - R
12/10/2020 - D		 Deed
(Bargain and sale)		 XXXXXXX XXXXX XXXXXXX XXXXXXXXX
11/27/2017 - R
10/25/2017 - D		 Deed
(Bargain and sale)		 XXXX XXXX XXXXXXXXX XXXXXXX XXXX XXXXX
04/05/2000 - R
03/30/2000 - D		 Deed XX. XXXXX XXXXXXXX XXXXXX XXXXXXXXX XXXX/XXXX
07/27/1999 - R
06/30/1999 - D		 Deed

*Most recent recorded documents on file for this property.

R: Recorded date
D: Document date

Tax

Property taxes for 20 West William Street, Bay Shore, 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
$8,901
Recent tax assessments
Market value
$409,860
Assessed value
$29,100

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 $409,860 $29,100 30.589 $8,901 +4.40%
2024-2025 $409,860 $29,100 29.299 $8,526 +4.40%
2023-2024 $399,725 $29,100 28.063 $8,166 -0.15%
2022-2023 $351,449 $29,100 28.104 $8,178 +0.31%
2021-2022 $313,578 $29,100 28.016 $8,153 +23.70%
2020-2021 $249,485 $24,200 27.234 $6,591 -34.74%
2019-2020 $249,339 $28,300 35.683 $10,098 +46.21%
2018-2019 $249,339 $28,300 24.405 $6,907 +1.99%
2017-2018 $233,498 $28,300 23.928 $6,772 -2.03%
2016-2017 $222,835 $28,300 24.423 $6,912 +3.10%
Permits

Permit information for 20 West William Street, Bay Shore, 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
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Access the detailed traffic volume map for 20 West William Street, Bay Shore, NY 11706 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)
Brook Avenue Elementary School NR Public K-2 400 0.19
St Patrick School NR Private PK-8 534 0.45
St Patrick School NR Private PK-8 534 0.45
Fifth Avenue School NR Public K-2 383 0.58
Mary G Clarkson School NR Public K-2 446 0.84
Heritage Christian Academy NR Private PK-5 41 0.95
Heritage Christian Academy NR Private PK-5 41 0.95
Woodhull School NR Public PK, K-6 34 1.20
Woodhull School NR Public PK, K-6 34 1.20
Gardiner Manor School 4 Public 3-5 702 1.62
Nearest middle schools

Name Rating Type Grade range No of students Distance (miles)
St Patrick School NR Private PK-8 534 0.45
Bay Shore Middle School 5 Public 6-8 1,298 0.50
Islip Middle School 4 Public 6-8 641 1.42
South Middle School 3 Public 6-8 1,033 2.34
St Peters By The Sea Episcopal Day School NR Private PK, K-8 176 2.43
Udall Road Middle School 6 Public 6-8 445 2.56
MDQ Academy NR Private PK-12 412 2.78
St Mary School NR Private PK-8 413 2.80
Our Lady Of Lourdes School NR Private PK-8 209 2.84
West Middle School 4 Public 6-8 848 2.89
Nearest high schools

Name Rating Type Grade range No of students Distance (miles)
Bay Shore Senior High School 5 Public 9-12 1,910 0.29
Islip High School 9 Public 9-12 892 1.42
Brentwood High School 3 Public 9-12 4,641 2.76
MDQ Academy NR Private PK-12 412 2.78
St John The Baptist Diocesan High School NR Private 9-12 1,335 3.49
West Islip Senior High School 9 Public 9-12 1,262 3.56
Ascent School for Individuals With Autism NR Private 4-12 24 3.67
East Islip High School 8 Public 9-12 1,145 3.69
Freshman Center NR Public 9 1,247 3.70
North Babylon High School 6 Public 9-12 1,506 3.97

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

Neighbors for 20 West William Street, Bay Shore, NY

34 Hewes St, Brentwood 701 Johnson Ave, Ronkonkoma 10 Colonial CT, Bay Shore 202 Magua St, Ronkonkoma 1446 Illinois Ave, Bay Shore 297 Easton St, Ronkonkoma 944 Thompson Dr, Bay Shore 93 N Park Ave, Bay Shore 26 9th Ave, Brentwood 55 E Maple St, Central Islip 390 Knickerbocker Ave, Bohemia 114 Atlantic Ave, West Sayville 43 Winfield Ave, Brentwood 54 Webster Ave, West Islip 1534 Brentwood Rd, Bay Shore 33 Kings Hwy, Hauppauge 1143 Ocean Ave, Bay Shore 251 S Fehr Way, Bay Shore 27 Wilbur St, Bay Shore 4 Edwin St, Bay Shore

Nearby ZIP codes for 20 West William Street, Bay Shore, NY

11702, Suffolk County, NY 11703, Suffolk County, NY 11704, Suffolk County, NY 11716, Suffolk County, NY 11717, Suffolk County, NY 11718, Suffolk County, NY 11722, Suffolk County, NY 11729, Suffolk County, NY 11730, Suffolk County, NY 11739, Suffolk County, NY 11749, Suffolk County, NY 11751, Suffolk County, NY 11752, Suffolk County, NY 11769, Suffolk County, NY 11770, Suffolk County, NY 11779, Suffolk County, NY 11782, Suffolk County, NY 11788, Suffolk County, NY 11795, Suffolk County, NY 11796, Suffolk County, NY

Frequently asked questions

What is the year built for 20 West William Street, Bay Shore, NY 11706?

The development at 20 West William Street, Bay Shore, NY 11706 was built in 1954.

What is the total square footage of 20 West William Street, Bay Shore, NY 11706?

20 West William Street, Bay Shore, NY 11706 has a total of 1,112 square feet.

When was 20 West William Street, Bay Shore, NY 11706 last sold and what was the sale price?

20 West William Street, Bay Shore, NY 11706 was last sold on 12/10/2020 for $316,000.

What is the assessed value of 20 West William Street, Bay Shore, NY 11706?

20 West William Street, Bay Shore, NY 11706 is currently assessed at $29,100.

What are the property taxes for 20 West William Street, Bay Shore, NY 11706?

The property taxes for 20 West William Street, Bay Shore, NY 11706 total $8,901.

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