Greenwich Town property record for 11 Osee Pl, Cos Cob, CT 06807
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 4 ba · 3,112 sqft · built 1920 |
| Lot Size | 0.21 acres (9,148 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $540,000 (Feb 2001) |
| Tax Bill | $14,648 (2026) |
| Deeds & Mortgages | Jul 2021 Refinance |
| Flood Zone | Zone X (minimal risk) |
| APN | 08-1260S |
| Primary APN | 08-1260S |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 4 Baths |
| Total Rooms | 8 Rooms |
| Stories | 2 Stories |
| Building Area | 3,112 sqft Living Area |
| Basement Area | 1,111 sqft |
| Unfinished Basement | 1,111 sqft |
| Year Built | Built 1920 |
|---|---|
| Effective Year Built | Effective 1960 |
| Architectural Style | Colonial |
| Exterior Material | Aluminum/Vinyl |
| Construction Type | Frame |
| Roof Type | Gable |
| Roof Material | Asphalt |
| Lot Area | 9,148 sqft (0.21 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 | 341/048 |
|---|---|
| Street Address | 11 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 | 1260/S |
| Jurisdiction | GREENWICH CT |
| Township / Civil Division | GREENWICH |
| Census Block Group | 3 |
| Census Block | 3001 |
| Census Tract | 10800 |
11 Osee Pl is owned by two individuals who bought it in February 2001.
Source: Greenwich Town records, as of October 21, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | PO BOX 259, NORWALK, CT 06856-0259 |
| 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.
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Feb 1, 2001 · Amount on File |
| Deed Sale | Feb 1, 2001 · Amount on File |
| Prior Sale | Aug 30, 1996 · Amount on File |
| Deed Book / Page | 3520 / 166 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | GREENWICH CT |
| Property Address | 11 OSEE PL, COS COB, CT 06807-2307 |
| Transaction Type | Mortgage |
| Record Updated | Jan 17, 2022 |
| Name | Verified Name |
|---|
| Document Number | 007933-259 |
|---|---|
| Date | Jul 19, 2021 |
| Book Page | 7933/259 |
| Instrument | 8289 |
| Name | CITIBANK NA |
|---|---|
| Type | Bank |
| Type | Stand-Alone Refinance |
|---|---|
| Amount | Amount on Record |
| Term | 181 Months |
| Due | Aug 1, 2036 |
The 2026 property tax bill for 11 Osee Pl was $14,648, down 1.8% 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 | $14,648.00 (-1.76%) | $1,397,200 (+15.82%) Land $725,900 Building $671,300 | $2,650,492 (+213.87%) |
| 2025 | $14,910.00 | $1,206,380 Land $650,440 Building $555,940 | $844,466 Land $455,308 Building $389,158 |
| 2024 | $14,910.00 (+6.22%) | ||
| 2023 | $14,037.00 (+0.91%) | $1,206,380 (-) Land $650,440 Building $555,940 | |
| 2022 | $13,910.00 | $1,206,380 Land $650,440 Building $555,940 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 11 Osee Pl 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 11 Osee Pl 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 96% of the US · lower than 94% 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 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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