Greenwich Town property record for 40 Thunder Mountain Rd, Greenwich, CT 06831
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 2,419 sqft · built 1953 |
| Lot Size | 2.26 acres (98,446 sqft) |
| Owner | Individual Name on File |
| Last Sale | $2,600,000 (Jun 2026) |
| Tax Bill | $11,428 (2026) |
| Deeds & Mortgages | Nov 2022 Refinance Nov 2021 Mortgage + 3 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 10-2584 |
| Primary APN | 10-2584 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 9 Rooms |
| Stories | 2 Stories |
| Building Area | 2,419 sqft Living Area |
| Basement Area | 1,426 sqft |
| Unfinished Basement | 1,426 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1953 |
|---|---|
| Effective Year Built | Effective 1962 |
| Architectural Style | Colonial |
| Exterior Material | Wood Siding |
| Construction Type | Frame |
| Roof Type | Gable |
| Roof Material | Asphalt |
| Lot Area | 98,446 sqft (2.26 acres) |
| Garage Type | Basement |
| Parking Spaces | 2 Parking Spaces |
| Deck Area | Deck Area |
| Cooling System | HVAC |
|---|---|
| Heating System | Forced Air with A/C |
| Heating Fuel | Oil |
| Account Number | 106/006 |
|---|---|
| Street Address | 40 THUNDER MOUNTAIN RD |
| City | GREENWICH |
| State | CT |
| Zip | 06831-3233 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | RA-2 |
| Legal Block | 2584 |
| Jurisdiction | GREENWICH CT |
| Township / Civil Division | GREENWICH |
| Census Block Group | 1 |
| Census Block | 1018 |
| Census Tract | 10101 |
40 Thunder Mountain Rd is owned and occupied by an individual who bought it in June 2026.
Source: Greenwich Town records, as of October 21, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 40 THUNDER MOUNTAIN RD, GREENWICH, CT 06831-3233 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
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 1, 2022 | Deed of Trust, Mortgage · Stand-Alone Refinance CITIZENS BANK |
| Nov 4, 2021 | Deed of Trust, Mortgage · ARM CITIZENS BANK |
| Jun 3, 2026 | Warranty Deed, Transfer · Conventional Mortgage UNITED HOME FEDERAL |
| Nov 4, 2021 | Deed of Trust, Mortgage · ARM CITIZENS BANK |
| Apr 4, 2017 | Deed of Trust, Mortgage · Line of Credit CITIZENS BANK |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Jun 3, 2026 · Amount on File |
| Deed Sale | Jun 3, 2026 · Amount on File |
| Prior Sale | Aug 21, 2003 · Amount on File |
| Deed Book / Page | 8572 / 162 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | GREENWICH CT |
| Property Address | 40 THUNDER MOUNTAIN RD, GREENWICH, CT 06831-3233 |
| Transaction Type | Mortgage |
| Record Updated | Jun 17, 2026 |
| Name | Verified Name |
|---|
| Document Number | 0008169-41 |
|---|---|
| Date | Nov 1, 2022 |
| Book Page | 8169/41 |
| Instrument | 9210 |
| Name | CITIZENS BANK |
|---|---|
| Type | Bank |
| Type | Stand-Alone Refinance |
|---|---|
| Amount | Amount on Record |
| Term | 301 Months |
| Due | Dec 1, 2047 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | GREENWICH CT |
| Property Address | 40 THUNDER MOUNTAIN RD, GREENWICH, CT 06831-3233 |
| Transaction Type | Mortgage |
| Record Updated | Jun 17, 2026 |
| Name | Verified Name |
|---|
| Document Number | 008004-264 |
|---|---|
| Date | Nov 4, 2021 |
| Book Page | 8004/264 |
| Instrument | 12482 |
| Name | CITIZENS BANK |
|---|---|
| Type | Bank |
| Type | ARM |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Dec 1, 2051 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 2.75% |
| Type Change Date | Dec 1, 2026 |
| Index | Other |
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | GREENWICH CT |
| Recording Date | Jun 3, 2026 |
| Property Address | 40 THUNDER MOUNTAIN RD, GREENWICH, CT 06831-3233 |
| Document Number | 008572-162 |
| Book / Page | 8572 / 162 |
| Instrument Date | May 28, 2026 |
| Instrument | 20263136 |
| Transaction Type | Transfer |
| Record Updated | Jun 25, 2026 |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $0.00 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants |
| Address | 40 THUNDER MOUNTAIN RD, GREENWICH, CT 06831-3233 |
| Date | Jun 3, 2026 |
|---|
| Name | UNITED HOME FEDERAL |
|---|
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | Jul 1, 2056 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 5.25% |
| Initial Type | Adjustable Rate |
| Type Change Date | Jul 1, 2033 |
| Index | 1-Month LIBOR |
| Margin | 3 |
| Max Rate | -1% |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | GREENWICH CT |
| Property Address | 40 THUNDER MOUNTAIN RD, GREENWICH, CT 06831-3233 |
| Transaction Type | Mortgage |
| Record Updated | Nov 18, 2021 |
| Name | Verified Name |
|---|
| Document Number | 8004-264 |
|---|---|
| Date | Nov 4, 2021 |
| Book Page | 8004/264 |
| Instrument | 12482 |
| Name | CITIZENS BANK |
|---|---|
| Type | Bank |
| Type | ARM |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Dec 1, 2051 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 2.75% |
| Type Change Date | Dec 1, 2026 |
| Index | Other |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | GREENWICH CT |
| Property Address | 40 THUNDER MOUNTAIN RD, GREENWICH, CT 06831-3233 |
| Transaction Type | Mortgage |
| Record Updated | Feb 5, 2021 |
| Name | Verified Name |
|---|
| Document Number | 7226-241 |
|---|---|
| Date | Apr 4, 2017 |
| Book Page | 7226/241 |
| Name | CITIZENS BANK |
|---|---|
| Type | Bank |
| Type | Line of Credit |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | Apr 1, 2047 |
The 2026 property tax bill for 40 Thunder Mountain Rd was $11,428, up 26.2% from the year before.
Source: Greenwich Town assessment roll, as of June 25, 2026
| Type | Name |
|---|---|
| State | Connecticut |
| County Subdivision | Greenwich Town |
| Unified School District | Greenwich School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $11,428.00 (+26.22%) | $1,128,680 (+50.09%) Land $735,070 Building $393,610 | $2,671,141 (+407.43%) |
| 2025 | $9,054.00 | $752,010 Land $483,980 Building $268,030 | $526,407 Land $338,786 Building $187,621 |
| 2024 | $9,054.00 (+5.71%) | ||
| 2023 | $8,565.00 (+0.97%) | $752,010 (-) Land $483,980 Building $268,030 | |
| 2022 | $8,483.00 | $752,010 Land $483,980 Building $268,030 |
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 40 Thunder Mountain Rd in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective November 28, 2025
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
Wildfire risk around 40 Thunder Mountain Rd is low, with a 0.02% 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 89% of Connecticut |
|---|---|
| Wildfire Likelihood | 0.02% annual chance |
| Exposure | Direct burnable vegetation |
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: FCC Broadband Data Collection, based on 49 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Verizon Fiber · Fixed Wireless in parts of the area | 980 / 880 |
| Optimum Cable · Fiber in parts of the area | 940 / 35 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
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