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109 Chestnut Street, Mount Sinai, NY 11766 Property Information

109 Chestnut Street, Mount Sinai, NY 11766 Property Information

  • General
  • Owner
  • Documents
  • Tax
  • Permits
  • Neighborhood
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109 Chestnut Street, Mount Sinai, NY 11766
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Address

Primary address 109 Chestnut Street, Mount Sinai
Zip code 11766
County Suffolk
Municipality Brookhaven
Parcel ID 1142713

Sales & Tax Overview for 109 Chestnut Street, Mount Sinai

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

Current property tax $4,127

Lot & Building Information for 109 Chestnut Street, Mount Sinai

Building sqft 1,301
Building class One Family Year-Round Residence (210)
Acreage 0.52
Year built 1979
Rooms 6
Bedrooms 3
Bathrooms 2
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Zoning, Use & Area Overview

Walk Score
Transit Score
Bike Score


Zoning district
School district Mount Sinai

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Other Property Data for 109 Chestnut Street, Mount Sinai

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About 109 Chestnut Street, Mount Sinai

What is the year built & the total sq. ft. for 109 Chestnut Street, Mount Sinai, NY 11766?

109 Chestnut Street, Mount Sinai, NY 11766 was built in 1979 and has a total of 1,301 square feet.

What is the assessed value of 109 Chestnut Street, Mount Sinai, NY 11766 and the property tax paid?

Assessed at $2,900, the tax amount paid for 109 Chestnut Street, Mount Sinai, NY 11766 is $11,925.

When was 109 Chestnut Street, Mount Sinai, NY 11766 last sold?

109 Chestnut Street, Mount Sinai, NY 11766 was last sold in 03/12/2008.

Ownership Information

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Real Estate Reports:
Laura Pop-Badiu, Jul 15, 2026 How to Find Property Owners — The Complete Guide 
For real estate professionals looking for the best ways to find property owners — whether through free methods based on public sources or paid tools with verified, in-depth data — this comprehensive guide breaks down every step of the due diligence process.
Eliza Theiss, Jul 08, 2026 2026 Q2 Foreclosure Report: Bronx Caseload Hits 7-Year High, Brooklyn & Manhattan Slow to 4-Year Low
Manhattan yet again slowed to become the city’s least active foreclosure market, Brooklyn’s caseload dropped so low it barely edged out Staten Island, while the Bronx heated up enough to surpass all boroughs except Queens.
Laura Pop-Badiu, Jul 02, 2026 How to Find Foreclosed Homes Step-by-Step Using PropertyShark
To help real estate professionals find foreclosed homes in a timely and efficient manner, this guide breaks down every step of the research process — from understanding foreclosure status all the way to finding contact information for owners and looking past LLCs.
Research 100M+ property records powered by:
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Past Sales & Property History for 109 Chestnut Street, Mount Sinai

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No recorded sales for this property.

Title Documents for 109 Chestnut Street, Mount Sinai

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Date Type Amount Party 1 Party 2 Doc image
03/12/2008 - D
03/12/2008 - R
Deed
(Life estate deed)
           
           
           
           
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R: Recorded date
D: Document date

Property Taxes for 109 Chestnut Street, Mount Sinai

Access detailed property tax data for 109 Chestnut Street, Mount Sinai, NY 11766. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.

Tax year 2025-2026
Base tax $11,925
Current property tax $4,127
Market value $547,170
Assessed value $2,900

Assessment History for 109 Chestnut Street, Mount Sinai

Here's the assessment & property tax history for 109 Chestnut 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
2025-2026 $547,170 $2,900 411.221 $11,925 +4.30%
2024-2025 $547,170 $2,900 394.249 $11,433 +3.18%
2023-2024 $537,037 $2,900 382.097 $11,081 +3.44%
2022-2023 $467,742 $2,900 369.378 $10,712 +2.22%
2021-2022 $391,892 $2,900 361.352 $10,479 +2.37%

Permits for 109 Chestnut Street, Mount Sinai

The complete history of permits filed for 109 Chestnut 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.

Brookhaven residential market stats

Median Sale Price
$575,000
4.5% YoY
Median Price/Sqft
$348
2.4% YoY
Suffolk County Median Sale Price
$677,000
5.9% YoY

Access a detailed real estate market overview of Brookhaven so you can assess current trends, home values, types of properties sold and transaction volume. View the median home sale price in Brookhaven and compare it to other neighborhoods in Suffolk County.

Risk

Create a free account to unlock extended information for 109 Chestnut 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 109 Chestnut 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 (miles)
Mount Sinai Middle School 5 Public 5-8 667 1.05
John F Kennedy Middle School 4 Public 4, 6-8 822 1.75
Clinton Avenue School NR Public K-2 441 1.83
North Shore Christian School NR Private PK, K-6 101 1.85
North Shore Christian School NR Private PK, K-6 101 1.85

Nearest middle schools

Name Rating Type Grade range No of students Distance (miles)
Mount Sinai Middle School 5 Public 5-8 667 1.05
John F Kennedy Middle School 4 Public 4, 6-8 822 1.75
Maryhaven Center Of Hope NR Private 47 2.58
North Country Road School 5 Public 6-8 534 2.66
Port Jefferson Middle School 7 Public 6-8 222 2.98

Nearest high schools

Name Rating Type Grade range No of students Distance (miles)
Mount Sinai High School 9 Public 9-12 720 1.18
Comsewogue High School 6 Public 9-12 1,153 1.47
Miller Place High School 9 Public 9-12 820 1.54
Maryhaven Center Of Hope NR Private 47 2.58
Sunshine Alternative Education Center NR Private 10-12 10 2.80

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

Neighbors for 109 Chestnut Street, Mount Sinai

Here are the neighbors for 109 Chestnut Street, Mount Sinai.

Address Square feet Purchase date Purchase price
93 Chestnut St, Mount Sinai 2,482 01/31/2019 $540,000
123 Chestnut St, Mount Sinai 2,257
131 Chestnut St, Mount Sinai 4,718 12/24/2003
135 Chestnut St, Mount Sinai 2,512 02/22/2022
87 Chestnut St, Mount Sinai 1,758 07/27/2018 $402,800
83 Chestnut St, Mount Sinai 2,093 11/17/2025
121 Chestnut St, Mount Sinai 1,277 12/03/2021
127 Chestnut St, Mount Sinai 2,546 11/17/2023 $733,000
107 Chestnut St, Mount Sinai 2,304 08/26/2016
115 Chestnut St, Mount Sinai 1,301 12/02/2022 $520,000
139 Chestnut St, Mount Sinai 2,014 05/17/2022 $600,000
91 Chestnut St, Mount Sinai 1,636 06/21/2005 $370,000
125 Chestnut St, Mount Sinai 1,300 08/06/2025 $610,000
137 Chestnut St, Mount Sinai 2,082 09/04/2024
111 Chestnut St, Mount Sinai 07/14/2022 $1,800,000
99 Chestnut St, Mount Sinai 801 06/02/2025
141 Chestnut St, Mount Sinai 1,229
95 Chestnut St, Mount Sinai 1,708 03/05/2021
103 Chestnut St, Mount Sinai 1,638 03/20/2020 $363,400
97 Chestnut St, Mount Sinai 09/03/2020 $628,504

Nearby ZIP Codes for 109 Chestnut Street, Mount Sinai

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