Suffolk County and Brookhaven Town property record for 121 Chestnut St, Mount Sinai, NY 11766
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · 1,277 sqft · built 1962 |
| Lot Size | 1 acre (43,560 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $288,000 (Jul 2012) |
| Tax Bill | $12,116 (2024) |
| Deeds & Mortgages | Nov 2022 Refinance Nov 2022 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 0200-185.00-02.00-006.000 |
| Primary APN | 0200-185.00-02.00-006.000 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 5 Rooms |
| Stories | 1 Story |
| Building Area | 1,277 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1962 |
|---|---|
| Effective Year Built | Effective 1962 |
| Architectural Style | Ranch |
| Exterior Material | Wood |
| Lot Area | 43,560 sqft |
| View / Lot | Waterfront |
| Heating System | Radiant |
|---|
| Account Number | 1142730 |
|---|---|
| Street Address | 121 CHESTNUT ST |
| City | MOUNT SINAI |
| State | NY |
| Zip | 11766-2330 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | O L SCHWENKE 398 35 9 N 120FT OF S |
| Legal Subdivision | SCHWENCKE O L |
| Legal Block | 5000 |
| Legal Lot Number | 200 |
| Jurisdiction | SUFFOLK NY |
| Township / Civil Division | BROOKHAVEN |
| Census Block Group | 1 |
| Census Block | 1006 |
| Census Tract | 158306 |
121 Chestnut St is owned and occupied by two individuals who acquired it in December 2021.
Source: Suffolk County and Brookhaven Town records, as of August 11, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 121 CHESTNUT ST, MOUNT SINAI, NY 11766-2330 |
| 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 |
|---|---|
| Nov 16, 2022 | Deed of Trust, Mortgage · Stand-Alone Refinance WELLS FARGO BANK NA |
| Nov 16, 2022 | Quit Claim Deed, Transfer Quitclaim |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jul 3, 2012 · Amount on File |
| Deed Sale | Jul 3, 2012 · Amount on File |
| Prior Sale | May 4, 2010 |
| Deed Book / Page | 12698 / 207 |
| Last Transfer Date | Dec 3, 2021 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SUFFOLK NY |
| Property Address | 121 CHESTNUT ST, MOUNT SINAI, NY 11766-2330 |
| Transaction Type | Mortgage |
| Record Updated | Jan 2, 2024 |
| Name | Verified Name |
|---|
| Document Number | 0234620415 |
|---|---|
| Date | Nov 16, 2022 |
| Book Page | 23462/415 |
| Name | WELLS FARGO BANK NA |
|---|---|
| Type | Bank |
| Type | Stand-Alone Refinance |
|---|---|
| Amount | Amount on Record |
| Term | 229 Months |
| Due | Dec 1, 2041 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | SUFFOLK NY |
| Recording Date | Nov 16, 2022 |
| Property Address | 121 CHESTNUT ST, MOUNT SINAI, NY 11766-2330 |
| Document Number | 0131780104 |
| Book / Page | 13178 / 104 |
| Instrument Date | Dec 3, 2021 |
| Transaction Type | Transfer |
| Record Updated | Jan 2, 2024 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | No Consideration Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 121 CHESTNUT ST, MOUNT SINAI, NY 11766-2330 |
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 | $3,200 Land $360 Building $2,840 | $666,667 Land $67,925 Building $535,849 | |
| 2024 | $12,116.00 | ||
| 2023 | $3,200 (-) Land $360 Building $2,840 | $5,926 (+14.8%) Land $667 Building $5,259 | |
| 2022 | Homeowner's exemption | $3,200 Land $360 Building $2,840 | $5,162 Land $581 Building $4,581 |
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 121 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 121 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 94% of the US · lower than 91% of New York |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | Direct burnable vegetation |
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 |
5G (outdoors only) and 4G LTE
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