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1 Helen Street, Mount Sinai, NY 11766 Property Information

1 Helen Street, Mount Sinai, NY 11766 Property Information

  • General
  • Owner
  • Documents
  • Tax
  • Permits
  • Neighborhood
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1 Helen Street, Mount Sinai, NY 11766
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Address

Primary address 1 Helen Street, Mount Sinai
Zip code 11766
County Suffolk
Municipality Brookhaven
Parcel ID 1144294

Sales & Tax Overview for 1 Helen Street, Mount Sinai

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

Sale date 03/29/2013
Sale price $332,000
Arm's length
Property tax $12,419

Lot & Building Information for 1 Helen Street, Mount Sinai

Building sqft 2,115
Building class One Family Year-Round Residence (210)
Acreage 0.35
Year built 1969
Rooms 8
Bedrooms 4
Bathrooms 1
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Zoning, Use & Area Overview

Walk Score
9 /100. Car-Dependent
Transit Score
0 /100. Minimal Transit
Bike Score
29 /100. Somewhat Bikeable

Zoning district
School district Mount Sinai

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

Other Property Data for 1 Helen Street, Mount Sinai

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About 1 Helen Street, Mount Sinai

What is the year built & the total sq. ft. for 1 Helen Street, Mount Sinai, NY 11766?

1 Helen Street, Mount Sinai, NY 11766 was built in 1969 and has a total of 2,115 square feet.

What is the assessed value of 1 Helen Street, Mount Sinai, NY 11766 and the property tax paid?

Assessed at $3,020, the tax amount paid for 1 Helen Street, Mount Sinai, NY 11766 is $12,418.

When was 1 Helen Street, Mount Sinai, NY 11766 last sold and what was the last sale price?

1 Helen Street, Mount Sinai, NY 11766 was last sold in 03/29/2013 for $332,000.

Ownership Information

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Real Estate Reports:
Locked-In Owners, Mobile Renters: Homeowners Stay Put as Renters Move 3.7x More Across Largest U.S. Cities 
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.
$4.6M Hudson Yards Maintains Top Spot, Luxury Sales in Malba Set $2.5M Price Record for Queens
Eliza Theiss, Apr 23, 2026 $4.6M Hudson Yards Maintains Top Spot, Luxury Sales in Malba Set $2.5M Price Record for Queens
Despite prices declining, Hudson Yards remained the most expensive NYC neighborhood, but TriBeCa’s growth closed the gap to under $400,000, while Malba set a new historic price record for Queens at $2.5 million, securing the highest ranking ever for the borough at #5.
2026 Q1 Foreclosure Report: Brooklyn Filings Fall Sharply, Bronx & Staten Island Hit New Peaks
Eliza Theiss, Apr 15, 2026 2026 Q1 Foreclosure Report: Brooklyn Filings Fall Sharply, Bronx & Staten Island Hit New Peaks
Behind a deceptively mild citywide downtick, borough foreclosure markets pulled into significantly diverging paths as Brooklyn cases were nearly halved and the Bronx hit a new, record high. Meanwhile, Queens remained unchanged, Staten Island surged back up and Manhattan cooled slowly.
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Past Sales & Property History for 1 Helen Street, Mount Sinai

Create a free account to view the complete sales history for 1 Helen Street, Mount Sinai, including title documents, transfer conditions, mortgages and liens.

Purchase date Purchase price Buyer name Seller name
03/29/2013 $332,000
12/04/2009 $420,000
       
       
       
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More about Suffolk County Property Records

Title Documents for 1 Helen Street, Mount Sinai

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
03/29/2013 - D
04/10/2013 - R		 Deed
(Bargain and sale)
12/04/2009 - D
11/13/2009 - R		 Deed
(Bargain & sale deed)
           
           
           
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R: Recorded date
D: Document date

Property Taxes for 1 Helen Street, Mount Sinai

Access detailed property tax data for 1 Helen Street, Mount Sinai, NY 11766. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.

Tax year 2025-2026
Property tax $12,419
Market value $569,812
Assessed value $3,020

More about Suffolk County Property Taxes

Assessment History for 1 Helen Street, Mount Sinai

Here's the assessment & property tax history for 1 Helen Street, Mount Sinai, 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 $569,812 $3,020 394.249 $11,906 +3.18%
2023-2024 $559,259 $3,020 382.097 $11,539 +3.44%
2022-2023 $487,097 $3,020 369.378 $11,155 +2.22%
2021-2022 $408,108 $3,020 361.352 $10,913 +2.37%
2020-2021 $392,208 $3,020 352.982 $10,660 +2.16%
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Permits for 1 Helen Street, Mount Sinai

The complete history of permits filed for 1 Helen Street, Mount Sinai, 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 1 Helen Street, Mount Sinai, 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 1 Helen Street, Mount Sinai to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.

View daily traffic map

Schools

Nearest elementary schools

Name Rating Type Grade range No of students Distance to school (mi)
Mount Sinai Middle School 5 Public 5-8 667 0.89
John F Kennedy Middle School 4 Public 4, 6-8 822 1.63
North Shore Christian School NR Private PK, K-6 101 1.76
North Shore Christian School NR Private PK, K-6 101 1.76
Clinton Avenue School NR Public K-2 441 1.80
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Nearest middle schools

Name Rating Type Grade range No of students Distance to school (mi)
Mount Sinai Middle School 5 Public 5-8 667 0.89
John F Kennedy Middle School 4 Public 4, 6-8 822 1.63
Maryhaven Center Of Hope NR Private 47 2.36
North Country Road School 5 Public 6-8 534 2.65
Port Jefferson Middle School 7 Public 6-8 222 2.77
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Nearest high schools

Name Rating Type Grade range No of students Distance to school (mi)
Mount Sinai High School 9 Public 9-12 720 1.00
Comsewogue High School 6 Public 9-12 1,153 1.45
Miller Place High School 9 Public 9-12 820 1.67
Maryhaven Center Of Hope NR Private 47 2.36
Sunshine Alternative Education Center NR Private 10-12 10 2.76
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Data provided by GreatSchools.org © 2025. All rights reserved.

Neighbors for 1 Helen Street, Mount Sinai

Here are the neighbors for 1 Helen Street, Mount Sinai.

Address Square feet Purchase date Purchase price
28 Hartwell Dr, Mount Sinai 2,036 06/07/1996 $110,000
63 Westcliff Dr, Mount Sinai 2,115 11/20/2021
67 Westcliff Dr, Mount Sinai 2,063
57 Westcliff Dr, Mount Sinai 2,115 08/17/2021 $450,000
59 Westcliff Dr, Mount Sinai 2,115 05/10/2018
71 Wheat PTH St, Mount Sinai 06/27/1997 $130,000
92 Chestnut St, Mount Sinai 1,900 10/11/2000 $265,000
26 Hartwell Dr, Mount Sinai 2,982 03/30/2006
6 Whitcomb Ave, Mount Sinai 2,115 03/23/2016 $326,500
20 Hartwell Dr, Mount Sinai 2,040 06/30/2011 $300,900
14 Marcy Dr, Mount Sinai 2,599 01/07/2022 $525,000
53 Westcliff Dr, Mount Sinai 1,910 06/29/2006 $425,000
4 Whitcomb Ave, Mount Sinai 2,295
24 Hartwell Dr, Mount Sinai 1,988 01/06/2016
22 Hartwell Dr, Mount Sinai 2,625 07/25/2012 $375,000
65 Westcliff Dr, Mount Sinai 2,370 11/28/2018 $374,000
69 Westcliff Dr, Mount Sinai 2,308 08/15/2024 $300,000
21 Hartwell Dr, Mount Sinai 1,988 03/18/2004 $422,000
55 Westcliff Dr, Mount Sinai 1,669 09/02/2015 $305,000
61 Westcliff Dr, Mount Sinai 2,115
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Nearby ZIP Codes for 1 Helen Street, Mount Sinai

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