Greenwich Town property record for 20 Osee Pl, Cos Cob, CT 06807
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 3 ba · 1,496 sqft · built 1941 |
| Lot Size | 0.22 acres (9,583 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $297,000 (Jul 1991) |
| Tax Bill | $9,790 (2026) |
| Flood Zone | Zone X (minimal risk) |
| APN | 08-3034S |
| Primary APN | 08-3034S |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 3 Baths |
| Half Baths | 2 Half Baths |
| Total Rooms | 6 Rooms |
| Stories | 2 Stories |
| Building Area | 1,496 sqft Living Area |
| Basement Area | 932 sqft |
| Unfinished Basement | 932 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1941 |
|---|---|
| Effective Year Built | Effective 1965 |
| Architectural Style | Cape Cod |
| Exterior Material | Aluminum/Vinyl |
| Construction Type | Frame |
| Roof Type | Gable |
| Roof Material | Asphalt |
| Lot Area | 9,583 sqft (0.22 acres) |
| Garage Type | Basement |
| Parking Spaces | 1 Parking Space |
| Deck Area | Deck Area |
| Cooling System | HVAC |
|---|---|
| Heating System | Hot Water |
| Heating Fuel | Gas |
| Account Number | 341/044 |
|---|---|
| Street Address | 20 OSEE PL |
| City | COS COB |
| State | CT |
| Zip | 06807-2307 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R-7 |
| Legal Block | 3034/S |
| Jurisdiction | GREENWICH CT |
| Township / Civil Division | GREENWICH |
| Census Block Group | 3 |
| Census Block | 3001 |
| Census Tract | 10800 |
Source: Greenwich Town records, as of October 21, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 20 OSEE PL, COS COB, CT 06807-2307 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jul 24, 1991 · Amount on File |
| Deed Sale | Jul 24, 1991 · Amount on File |
| 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 | $9,790.00 (+0.11%) | $933,800 (+18.01%) Land $734,300 Building $199,500 | $1,230,329 (+122.12%) |
| 2025 | $9,779.00 | $791,280 (-) Land $658,000 Building $133,280 | $553,896 Land $460,600 Building $93,296 |
| 2024 | $9,779.00 (+6.21%) | ||
| 2023 | $9,207.00 (+0.92%) | $791,280 (-) Land $658,000 Building $133,280 | |
| 2022 | $9,123.00 | $791,280 Land $658,000 Building $133,280 |
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 | Not rated no burnable land within 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 124 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Optimum Fiber · Cable | 8,000 / 8,000 |
| Verizon Fiber | 980 / 880 |
5G (outdoors only) and 4G LTE
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