Greenwich Town property record for 21 Field Rd, Cos Cob, CT 06807
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2.5 ba · 1,112 sqft · built 1954 |
| Lot Size | 0.32 acres (13,939 sqft) |
| Owner | Trust Name on File |
| Last Sale | $282,000 (Dec 1989) |
| Tax Bill | $6,606 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 08-1820S |
| Primary APN | 08-1820S |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,112 sqft Living Area |
| Basement Area | 1,112 sqft |
| Unfinished Basement | 1,112 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1954 |
|---|---|
| Effective Year Built | Effective 1970 |
| Architectural Style | Ranch |
| Exterior Material | Wood Siding |
| Construction Type | Frame |
| Roof Type | Gable |
| Roof Material | Asphalt |
| Lot Area | 13,939 sqft (0.32 acres) |
| Garage Type | Basement |
| Parking Spaces | 1 Parking Space |
| Cooling System | HVAC |
|---|---|
| Heating System | Hot Water |
| Heating Fuel | Oil |
| Account Number | 366/022 |
|---|---|
| Street Address | 21 FIELD RD |
| City | COS COB |
| State | CT |
| Zip | 06807-2302 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R-7 |
| Legal Block | 1820/S |
| Jurisdiction | GREENWICH CT |
| Township / Civil Division | GREENWICH |
| Census Block Group | 3 |
| Census Block | 3015 |
| Census Tract | 10800 |
21 Field Rd is owner-occupied and held in a trust since December 1989.
Source: Greenwich Town records, as of June 25, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 21 FIELD RD, COS COB, CT 06807-2302 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Dec 29, 1989 · Amount on File |
| Deed Sale | Dec 29, 1989 · Amount on File |
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 21 Field Rd was $6,606.
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 |
|---|---|---|---|
| 2025 | $6,606.00 | $534,520 Land $440,090 Building $94,430 | $374,164 Land $308,063 Building $66,101 |
| 2024 | $6,606.00 (+6.21%) | ||
| 2023 | $6,220.00 (+0.92%) | $534,520 (-) Land $440,090 Building $94,430 | |
| 2022 | $6,163.00 | $534,520 Land $440,090 Building $94,430 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 21 Field Rd in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.
Source: FEMA National Flood Hazard Layer, effective November 28, 2025
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| 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 21 Field Rd 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 98% of the US · lower than 97.2% of Connecticut |
|---|---|
| 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 | AQUARION-EASTERN FAIRFIELD COUNTY private · serves 351,756 people · EPA ID CT0150011 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Jun 2025 |
| Lead | Under 1 ppb (2026) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | 24 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 328 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 |
May also be available: Frontier.
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