Greenwich Town property record for 303 Cognewaugh Rd, Cos Cob, CT 06807
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 5.5 ba · 5,589 sqft · built 1920 |
| Lot Size | 2 acres (87,120 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $307,000 (Jul 1991) |
| Tax Bill | $18,385 (2026) |
| Flood Zone | Zone X (minimal risk) |
| APN | 08-1964 |
| Primary APN | 08-1964 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 5.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 10 Rooms |
| Stories | 2 Stories |
| Building Area | 5,589 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1920 |
|---|---|
| Effective Year Built | Effective 1953 |
| Architectural Style | Conventional |
| Exterior Material | Wood Siding |
| Construction Type | Frame |
| Foundation Type | Raised |
| Roof Type | Gable |
| Roof Material | Wood Shingle |
| Lot Area | 87,120 sqft (2 acres) |
| Garage Type | Attached |
| Parking Spaces | 1 Parking Space |
| Pool Type | Pool with Hot Tub/Spa |
| Deck Area | Deck Area |
| Cooling System | HVAC |
|---|---|
| Heating System | Forced Air with A/C |
| Heating Fuel | Oil |
| Account Number | 379/027 |
|---|---|
| Street Address | 303 COGNEWAUGH RD |
| City | COS COB |
| State | CT |
| Zip | 06807-1310 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | RA-2 |
| Legal Block | 1964 |
| Jurisdiction | GREENWICH CT |
| Township / Civil Division | GREENWICH |
| Census Block Group | 1 |
| Census Block | 1002 |
| Census Tract | 10202 |
Source: Greenwich Town records, as of October 21, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Individual Names on Record |
|---|---|
| Mailing Address | 303 COGNEWAUGH RD, COS COB, CT 06807-1310 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jul 29, 1991 · Amount on Record |
| Deed Sale | Jul 29, 1991 · Amount on Record |
| Record Updated | Oct 29, 2026 |
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 | $18,385.00 (+4.51%) | $1,815,800 (+24.28%) Land $720,720 Building $1,095,080 | $3,821,237 (+273.63%) |
| 2025 | $17,591.00 | $1,461,040 (-) Land $554,400 Building $906,640 | $1,022,728 Land $388,080 Building $634,648 |
| 2024 | $17,591.00 (+5.71%) | ||
| 2023 | $16,641.00 (+0.97%) | $1,461,040 (-) Land $554,400 Building $906,640 | |
| 2022 | $16,481.00 | $1,461,040 Land $554,400 Building $906,640 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
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.
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 | 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 | 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 115 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Optimum Fiber · Cable | 8,000 / 8,000 |
| Verizon Fiber | 2,300 / 2,300 |
May also be available: Frontier.
4G LTE (outdoors only), no 5G reported
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