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159 Chestnut St, Mount Sinai, NY 11766 Property Records

Suffolk County and Brookhaven Town property record for 159 Chestnut St, Mount Sinai, NY 11766

Property Summary

Property TypeSingle Family Home
Details3 bd · 2 ba · 1,772 sqft · built 1986
Lot Size0.88 acres (38,332 sqft)
OwnerIndividual Name on File
Last Sale$1,000 (Sep 1993)
Tax Bill$17,128 (2024)
Deeds & MortgagesApr 2023 Refinance
Apr 2023 Sale
Flood ZoneZone X (minimal risk)
APN0200-209.00-03.00-030.005

Property Details

APN / Parcel Number

Primary APN0200-209.00-03.00-030.005
Alternative APNs
  • 472289 209.00-03-030.005
  • 228920900000030300050000
  • 00001142841
  • 0001142841
  • 1142841

Interior

Bedrooms3 Beds
Full Baths2 Baths
Total Rooms6 Rooms
Stories1 Story
Building Area1,772 sqft Living Area
Fireplaces1 Fireplace
FireplaceFireplace

Exterior

Year BuiltBuilt 1986
Effective Year BuiltEffective 1986
Architectural StyleRanch
Exterior MaterialWood
Lot Area38,332 sqft (0.88 acres)
View / LotLake Front

Utilities, Heating & Cooling

Heating SystemRadiant

Location & Zoning

Account Number1142841
Street Address159 CHESTNUT ST
CityMOUNT SINAI
StateNY
Zip11766-2330
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionOL SCHWENKE 398 35 LOT 12 N 20 & L
Legal SubdivisionSCHWENCKE O L
Legal Block9000
Legal Lot Number300
JurisdictionSUFFOLK NY
Township / Civil DivisionBROOKHAVEN
Census Block Group1
Census Block1006
Census Tract158306

Owner

159 Chestnut St is owned and occupied by an individual who bought it in September 1993.

Source: Suffolk County and Brookhaven Town records, as of August 11, 2026

Owner of RecordIndividual Name on File
Mailing Address159 CHESTNUT ST, MOUNT SINAI, NY 11766-2330
OccupancyOwner Occupied
Owner TypeIndividual

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

DateDocument
Apr 4, 2023Deed of Trust, Mortgage · Stand-Alone Refinance
CARDINAL FINANCIAL COMPANY LP
Apr 4, 2023Deed, Transfer
MISC COMPANY

Assessor's Deed Record

Deed NamesName on Deed
Last SaleSep 23, 1993 · Amount on File
Deed SaleSep 23, 1993 · Amount on File
Deed Book / Page11645 / 433
Record UpdatedSep 20, 2026

April 2023: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionSUFFOLK NY
Property Address159 CHESTNUT ST, MOUNT SINAI, NY 11766-2330
Transaction TypeMortgage
Record UpdatedFeb 13, 2024

Transferred To (Grantee/Buyer)

NameVerified Name

Mortgage

Document Number0234970477
DateApr 4, 2023
Book Page23497/477
Lender
NameCARDINAL FINANCIAL COMPANY LP
TypeMortgage Company
Agreement
TypeStand-Alone Refinance
AmountAmount on Record
Term349 Months
DueMay 1, 2052

April 2023: Deed, Transfer

Document TypeDeed
JurisdictionSUFFOLK NY
Recording DateApr 4, 2023
Property Address159 CHESTNUT ST, MOUNT SINAI, NY 11766-2330
Document Number0131960082
Book / Page13196 / 82
Instrument DateJan 31, 2023
Transaction TypeTransfer
Record UpdatedFeb 13, 2024
Title CompanyMISC COMPANY

Transaction

Tax$0.00
Amount AccuracyNo Consideration Stated
Additional
  • Lis Pendens
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address159 CHESTNUT ST, MOUNT SINAI, NY 11766-2330

Tax Assessment & Valuation

Source: Suffolk County and Brookhaven Town assessment roll, as of August 11, 2026

Property Jurisdictions

TypeName
StateNew York
CountySuffolk County
County SubdivisionBrookhaven Town
Unified School DistrictMount Sinai Union Free School District (PK - 12)

Tax Bill & Assessment History

YearTax BillAssessed ValueAssessed Market Value
2025$3,400 Land $320 Building $3,080$708,334 Land $60,377 Building $581,132
2024$17,128.00
2023$4,195 (-) Land $320 Building $3,875$7,769 (+14.82%) Land $593 Building $7,176
2022$4,195 Land $320 Building $3,875$6,766 Land $516 Building $6,250

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Flood

FEMA maps place 159 Chestnut St in Zone X, an area of minimal flood risk, though there have been 5 flood claims nearby since 1979.

Source: FEMA National Flood Hazard Layer, effective September 18, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it
Nearby Flood Policies4 in force
Nearby Flood Claims5 (1979–1985)
Claims Outside the SFHA5 of 5
Most Recent ClaimSep 1985 · Hurricane Gloria

Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.

Wildfire

Wildfire risk around 159 Chestnut St is low, with less than a 0.01% annual chance of wildfire.

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire RiskLow
lower than 99.1% of the US · lower than 99.2% of New York
Wildfire LikelihoodUnder 0.01% annual chance
ExposureNone
beyond ember reach

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water SystemSUFFOLK COUNTY WATER AUTHORITY
serves 1,100,000 people · EPA ID NY5110526
Water SourceGroundwater
Last State InspectionJan 2024
Lead1 ppb (2025–2027)
action level 15 ppb

Violations Reported to EPA

Water QualityAsbestos
resolved · Jul 2020
Treatment and ProcedureNone
last 10 years
Monitoring and ReportingNone
last 3 years

Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.

Internet Providers

Source: FCC Broadband Data Collection, based on 268 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Optimum
Fiber · Cable		8,000 / 8,000
T-Mobile
Fixed Wireless		100 / 20

May also be available: Verizon.

Cell Coverage

5G (outdoors only) and 4G LTE

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