Suffolk County » 11706 » S Union St » 18 S Union St

18 South Union Street, Bay Shore, NY 11706 Property Information

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Address

Primary address	18 South Union Street, Bay Shore
Zip code	11706
County	Suffolk

Municipality	Islip
Parcel ID	392-4-2

Sales & Tax Overview for 18 South Union Street, Bay Shore

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

Sale date	12/21/2000
Sale price	$137,500

Arm's length	Register
Current property tax	$6,390

Lot & Building Information for 18 South Union Street, Bay Shore

Building class	One Family Year-Round Residence (210)
Acreage	0.09

Zoning, Use & Area Overview

Walk Score

Transit Score

Bike Score

Zoning district	Register
School district	Bay Shore

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

Other Property Data for 18 South Union Street, Bay Shore

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About 18 South Union Street, Bay Shore

What is the assessed value of 18 South Union Street, Bay Shore, NY 11706 and the property tax paid?

Assessed at $38,000, the tax amount paid for 18 South Union Street, Bay Shore, NY 11706 is $11,623.

When was 18 South Union Street, Bay Shore, NY 11706 last sold and what was the last sale price?

18 South Union Street, Bay Shore, NY 11706 was last sold in 12/21/2000 for $137,500.

Ownership Information

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Commercial Real Estate nearby

Real Estate Reports:

Laura Pop-Badiu, Jul 29, 2026 How to Contact Property Owners: Cold Calling Scripts, Email Templates & Outreach Tips

When it comes to efficiently contacting property owners, the challenge is twofold: First, you need to identify the right owner. Then, you need to reach that owner through the appropriate channel with the right message. Enhanced by effective follow-up tips and tactics, this guide is particularly useful for investors, agents and other real estate professionals who need an effective outreach process.

Lucian Alixandrescu, Jul 28, 2026 Brooklyn Emerges as NYC’s Coworking Growth Engine, Manhattan Rents Cross $100 in the Plaza District

New York City’s office market continued to lead the U.S. in Q2, but internal shifts were most visible in the flex office market. Brooklyn’s coworking inventory grew 6.2% Q-o-Q even as Manhattan’s supply retreated. At the same time, Brooklyn’s asking rents for traditional office leases climbed more than twice as fast as the national average.

Eliza Theiss, Jul 22, 2026 Prices Rise in 32 of NYC’s Leading Neighborhoods as City and Manhattan Hit Record Highs

Q2 2026 saw NYC and Manhattan reach historic highs, with Brooklyn and Queens marking close to new records as well. Meanwhile, Hudson Yards remained at the top, Central Midtown posted its highest price ever and Carroll Gardens marked its third consecutive quarter over $2 million

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Past Sales & Property History for 18 South Union Street, Bay Shore

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Purchase date	Purchase price	Buyer name	Seller name
12/21/2000	$137,500	Register	Register

More about Suffolk County Property Records

Title Documents for 18 South Union Street, Bay Shore

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R: Recorded date
D: Document date

Property Taxes for 18 South Union Street, Bay Shore

Access detailed property tax data for 18 South Union Street, Bay Shore, NY 11706. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.

Tax year	2025-2026
Base tax	$11,624
Current property tax	$6,390
Market value	$535,211
Assessed value	$38,000

More about Suffolk County Property Taxes

Assessment History for 18 South Union Street, Bay Shore

Here's the assessment & property tax history for 18 South Union Street, Bay Shore, 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
2025-2026	$535,211	$38,000	30.589	$11,624	+4.40%
2024-2025	$535,211	$38,000	29.299	$11,134	+4.40%
2023-2024	$521,978	$38,000	28.063	$10,664	-0.15%
2022-2023	$458,937	$38,000	28.104	$10,680	+0.31%
2021-2022	$409,483	$38,000	28.016	$10,646	+2.87%

Permits for 18 South Union Street, Bay Shore

The complete history of permits filed for 18 South Union Street, Bay Shore, 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

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

Transportation

Access the detailed traffic volume map for 18 South Union Street, Bay Shore 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 (miles)
Fifth Avenue School	NR	Public	K-2	383	0.73
Woodhull School	NR	Public	PK, K-6	34	0.83
Woodhull School	NR	Public	PK, K-6	34	0.83
Brook Avenue Elementary School	NR	Public	K-2	400	0.97
Gardiner Manor School	4	Public	3-5	702	1.08

Nearest middle schools

Name	Rating	Type	Grade range	No of students	Distance (miles)
St Patrick School	NR	Private	PK-8	534	1.25
Bay Shore Middle School	5	Public	6-8	1,298	1.33
St Peters By The Sea Episcopal Day School	NR	Private	PK, K-8	176	1.55
Islip Middle School	4	Public	6-8	641	1.79
Udall Road Middle School	6	Public	6-8	445	2.34

Nearest high schools

Name	Rating	Type	Grade range	No of students	Distance (miles)
Bay Shore Senior High School	5	Public	9-12	1,910	0.69
Islip High School	9	Public	9-12	892	1.83
St John The Baptist Diocesan High School	NR	Private	9-12	1,335	2.65
West Islip Senior High School	9	Public	9-12	1,262	2.81
Brentwood High School	3	Public	9-12	4,641	3.59

Neighbors for 18 South Union Street, Bay Shore

Here are the neighbors for 18 South Union Street, Bay Shore.

Address	Square feet	Purchase date	Purchase price
56 Meadow Brook Dr, Brentwood		05/08/2014	$225,000
1228 Howells Rd, Bay Shore		12/13/2000	$155,000
25 Howells Rd, Bay Shore		03/08/2006
48 W End Ave, Brentwood		08/01/2002	$180,000
35 Flintridge Dr, Holbrook		10/31/2011
164 E Main St, Bay Shore		08/05/2016
87 Thomas St, Brentwood		12/14/2000	$163,000
78 Breeze Ave, Ronkonkoma		12/23/2002	$310,000
307 Center Oaks Trl, Bay Shore		02/09/2018
58 Merrick St, Islip Terrace		08/27/2001	$236,000
133 Washington St, East Islip		12/21/2000	$195,000
16 Seville Blvd, Sayville	1,348	11/10/2021	$465,000
1492 St Louis Ave, Bay Shore	1,964	01/02/2001
401 Mystic Way, Bay Shore	1,443	09/28/2023
3 Sexton Dr, West Islip		01/19/2024	$1,792,500
14 Michalis CT, West Islip	4,536	03/26/2021	$725,000
45 Lakeview CT, Ronkonkoma	1,488	11/17/2020	$375,000
978 Commack Rd, Brentwood	2,178	11/06/2021
45 Cone Ave, Central Islip		12/15/2000	$66,250
140 Wicks Rd, Brentwood		04/04/2002	$198,000

Nearby ZIP Codes for 18 South Union Street, Bay Shore

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Date	Type	Amount	Party 1	Party 2	Doc image
01/04/2001 - R 12/21/2000 - D	Deed
10/28/1997 - R 09/12/1997 - D	Deed