Suffolk County » 11766 » Chestnut St » 78 Chestnut St

78 Chestnut Street, Mount Sinai, NY 11766 Property Information

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Address

Primary address	78 Chestnut Street, Mount Sinai
Zip code	11766
County	Suffolk

Municipality	Brookhaven
Parcel ID	1146270

Sales & Tax Overview for 78 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	$12,777

Lot & Building Information for 78 Chestnut Street, Mount Sinai

Building sqft	2,036
Building class	One Family Year-Round Residence (210)
Acreage	0.34
Year built	1970
Rooms	8
Bedrooms	4
Bathrooms	2

Zoning, Use & Area Overview

Walk Score

Transit Score

Bike Score

Zoning district	Register
School district	Mount Sinai

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

Other Property Data for 78 Chestnut Street, Mount Sinai

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About 78 Chestnut Street, Mount Sinai

What is the year built & the total sq. ft. for 78 Chestnut Street, Mount Sinai, NY 11766?

78 Chestnut Street, Mount Sinai, NY 11766 was built in 1970 and has a total of 2,036 square feet.

What is the assessed value of 78 Chestnut Street, Mount Sinai, NY 11766 and the property tax paid?

Assessed at $3,325, the tax amount paid for 78 Chestnut Street, Mount Sinai, NY 11766 is $13,673.

Ownership Information

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Commercial Real Estate nearby

Real Estate Reports:

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.

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.

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 78 Chestnut Street, Mount Sinai

Create a free account to view the complete sales history for 78 Chestnut Street, Mount Sinai, including title documents, transfer conditions, mortgages and liens.

No recorded sales for this property.

More about Suffolk County Property Records

Title Documents for 78 Chestnut Street, Mount Sinai

Data not available for this property.

Property Taxes for 78 Chestnut Street, Mount Sinai

Access detailed property tax data for 78 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	$13,673
Current property tax	$12,777
Market value	$627,359
Assessed value	$3,325

More about Suffolk County Property Taxes

Assessment History for 78 Chestnut Street, Mount Sinai

Here's the assessment & property tax history for 78 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
2024-2025	$627,359	$3,325	394.249	$13,109	+3.18%
2023-2024	$615,741	$3,325	382.097	$12,705	+3.44%
2022-2023	$536,290	$3,325	369.378	$12,282	+2.22%
2021-2022	$449,324	$3,325	361.352	$12,015	+2.37%
2020-2021	$431,818	$3,325	352.982	$11,737	+2.16%

Permits for 78 Chestnut Street, Mount Sinai

The complete history of permits filed for 78 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.

Risk

Create a free account to unlock extended information for 78 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 78 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 to school (mi)
Mount Sinai Middle School	5	Public	5-8	667	0.75
John F Kennedy Middle School	4	Public	4, 6-8	822	1.81
North Shore Christian School	NR	Private	PK, K-6	101	1.95
North Shore Christian School	NR	Private	PK, K-6	101	1.95
Clinton Avenue School	NR	Public	K-2	441	2.01

Nearest middle schools

Name	Rating	Type	Grade range	No of students	Distance to school (mi)
Mount Sinai Middle School	5	Public	5-8	667	0.75
John F Kennedy Middle School	4	Public	4, 6-8	822	1.81
Maryhaven Center Of Hope	NR	Private		47	2.38
North Country Road School	5	Public	6-8	534	2.44
Port Jefferson Middle School	7	Public	6-8	222	2.83

Nearest high schools

Name	Rating	Type	Grade range	No of students	Distance to school (mi)
Mount Sinai High School	9	Public	9-12	720	0.89
Miller Place High School	9	Public	9-12	820	1.52
Comsewogue High School	6	Public	9-12	1,153	1.66
Maryhaven Center Of Hope	NR	Private		47	2.38
Earl L Vandermeulen High School	9	Public	9-12	323	2.83

Neighbors for 78 Chestnut Street, Mount Sinai

Here are the neighbors for 78 Chestnut Street, Mount Sinai.

Address	Square feet	Purchase date	Purchase price
7 Hartwell Dr, Mount Sinai	2,115	01/30/2019	$470,000
9 Hartwell Dr, Mount Sinai	2,533	08/25/2022	$710,000
1 Walcott CT, Mount Sinai	2,122
7 Whitcomb Ave, Mount Sinai	2,335	04/18/2022	$10
18 Hartwell Dr, Mount Sinai	2,067	10/28/2021
14 Hartwell Dr, Mount Sinai	3,150	06/19/2015
2 Walcott CT, Mount Sinai	2,036	09/24/2019
3 Walcott CT, Mount Sinai	2,555	05/08/2003
17 Hartwell Dr, Mount Sinai	2,115	03/14/2023	$835,000
6 Hartwell Dr, Mount Sinai	2,235	06/28/2018	$445,900
20 Hartwell Dr, Mount Sinai	2,040	06/30/2011	$300,900
16 Hartwell Dr, Mount Sinai	2,178	04/10/2015	$285,000
3 Hartwell Dr, Mount Sinai	1,370	01/20/2023	$480,000
4 Walcott CT, Mount Sinai	2,115	07/26/2018	$510,000
22 Hartwell Dr, Mount Sinai	2,625	07/25/2012	$375,000
5 Hartwell Dr, Mount Sinai	2,070	12/05/2013	$350,000
4 Hartwell Dr, Mount Sinai	2,036	12/14/2015	$368,000
8 Hartwell Dr, Mount Sinai	2,070	05/16/2019
10 Hartwell Dr, Mount Sinai	2,115	05/15/2008	$490,000
12 Hartwell Dr, Mount Sinai	2,115	03/12/1997	$157,000

Nearby ZIP Codes for 78 Chestnut Street, Mount Sinai

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