Suffolk County and Brookhaven Town property record for 100 Chestnut St, Mount Sinai, NY 11766
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 3,124 sqft · built 1995 |
| Lot Size | 0.94 acres (40,946 sqft) |
| Owner | Individual Name on File |
| Last Sale | $215,000 (Oct 1995) |
| Tax Bill | $15,867 (2024) |
| Deeds & Mortgages | Dec 2019 Construction Loan Nov 2019 Loan Modification |
| Flood Zone | Zone X (minimal risk) |
| APN | 0200-185.00-01.00-002.001 |
| Primary APN | 0200-185.00-01.00-002.001 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 10 Rooms |
| Stories | 2 Stories |
| Building Area | 3,124 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1995 |
|---|---|
| Effective Year Built | Effective 1995 |
| Architectural Style | Colonial |
| Exterior Material | Aluminum/Vinyl |
| Lot Area | 40,946 sqft (0.94 acres) |
| Lot Dimensions | 300 ft deep x 136 ft wide |
| View / Lot | Waterfront |
| Heating System | Radiant |
|---|
| Account Number | 1126862 |
|---|---|
| Street Address | 100 CHESTNUT ST |
| City | MOUNT SINAI |
| State | NY |
| Zip | 11766-2329 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | OAKDALE FARMS 484 LOT 74 NE 136X300 |
| Legal Subdivision | OAKDALE FARMS |
| Legal Block | 5000 |
| Legal Lot Number | 100 |
| Jurisdiction | SUFFOLK NY |
| Township / Civil Division | BROOKHAVEN |
| Census Block Group | 1 |
| Census Block | 1013 |
| Census Tract | 158306 |
100 Chestnut St is owned and occupied by an individual who bought it in October 1995.
Source: Suffolk County and Brookhaven Town records, as of August 11, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 100 CHESTNUT ST, MOUNT SINAI, NY 11766-2329 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Date | Document |
|---|---|
| Dec 27, 2019 | Deed of Trust, Mortgage · Construction Mortgage TEACHERS FCU |
| Nov 4, 2019 | Loan Modification, Consolidation and Extension, Mortgage · Conventional Mortgage TEACHERS FCU |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Oct 25, 1995 · Amount on File |
| Deed Sale | Oct 25, 1995 · Amount on File |
| Prior Sale | Oct 20, 1993 · Amount on File |
| Deed Book / Page | 11747 / 243 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SUFFOLK NY |
| Property Address | 100 CHESTNUT ST, MOUNT SINAI, NY 11766-2329 |
| Transaction Type | Mortgage |
| Record Updated | Feb 5, 2021 |
| Name | Verified Name |
|---|
| Document Number | 0230910817 |
|---|---|
| Date | Dec 27, 2019 |
| Book Page | 23091/817 |
| Instrument | DK034275 |
| Name | TEACHERS FCU |
|---|---|
| Type | Credit Union |
| Type | Construction Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 229 Months |
| Due | Jan 1, 2039 |
| Document Type | Loan Modification, Consolidation and Extension |
|---|---|
| Jurisdiction | SUFFOLK NY |
| Property Address | 100 CHESTNUT ST, MOUNT SINAI, NY 11766-2329 |
| Document Number | 0230910818 |
| Instrument Date | Nov 4, 2019 |
| Transaction Type | Mortgage |
| Record Updated | Mar 9, 2020 |
| Title Company | NOT AVAILABLE |
| Name | Verified Name |
|---|---|
| Address | 100 CHESTNUT ST MOUNT SINAI NY 117662329, MOUNT SINAI, NY 11766-2329 |
| Document Number | 0230910818 |
|---|---|
| Date | Dec 27, 2019 |
| Book Page | 023091/000818 |
| Name | TEACHERS FCU |
|---|---|
| Type | Credit Union |
| Address | HAUPPAUGE, NY 11788 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 240 Months |
| Due | Dec 26, 2039 |
| Rate Type | Fixed Rate |
|---|---|
| Rate | 3.75% |
Source: Suffolk County and Brookhaven Town assessment roll, as of August 11, 2026
| Type | Name |
|---|---|
| State | New York |
| County | Suffolk County |
| County Subdivision | Brookhaven Town |
| Unified School District | Mount Sinai Union Free School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $4,140 Land $375 Building $3,765 | $862,500 Land $70,755 Building $710,377 | |
| 2024 | $15,867.00 | ||
| 2023 | $4,140 Land $375 Building $3,765 | $7,666 Land $694 Building $6,972 |
Assessed value is set for property tax purposes, not a market price estimate; it is a fraction of this property's market value.
FEMA maps place 100 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 Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 4 in force |
| Nearby Flood Claims | 5 (1979–1985) |
| Claims Outside the SFHA | 5 of 5 |
| Most Recent Claim | Sep 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 risk around 100 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 Risk | Low lower than 96% of the US · lower than 95% of New York |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | None beyond ember reach |
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | SUFFOLK COUNTY WATER AUTHORITY serves 1,100,000 people · EPA ID NY5110526 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Jan 2024 |
| Lead | 1 ppb (2025–2027) action level 15 ppb |
| Water Quality | Asbestos resolved · Jul 2020 |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | None 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.
Source: FCC Broadband Data Collection, based on 197 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Optimum Fiber · Cable | 8,000 / 8,000 |
| Verizon Fiber · Fixed Wireless in parts of the area | 980 / 880 |
| Starlink Satellite | 280 / 30 |
Search by:
By searching, you agree to: Terms • Privacy • Disclosures