Greenwich Town property record for 9 River Rd, Unit 411, Cos Cob, CT 06807
| Property Type | Condominium |
|---|---|
| Details | 2 bd · 2 ba · 1,125 sqft · built 1979 |
| Lot Size | 2.75 acres (120,022 sqft) |
| Owner | Individual Name on File |
| Last Sale | $532,000 (Nov 2014) |
| Tax Bill | $4,199 (2025) |
| Flood Zone | Zone AE (high risk) |
| APN | 08A-1675S |
| Primary APN | 08A-1675S |
|---|---|
| Alternative APNs |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 4 Rooms |
| Units | 20 Units |
| Stories | 3 Stories |
| Building Area | 1,125 sqft Living Area |
| Attic | Attic |
| Attic Area | 102 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1979 |
|---|---|
| Effective Year Built | Effective 1985 |
| Architectural Style | Other |
| Exterior Material | Wood Siding |
| Construction Type | Frame |
| Roof Type | Gable |
| Roof Material | Asphalt |
| Lot Area | 120,022 sqft |
| Deck Area | Deck Area |
| Cooling System | HVAC |
|---|---|
| Heating System | Hot Water |
| Heating Fuel | Gas |
| Account Number | 367/D11 |
|---|---|
| Street Address | 9 RIVER RD, 411 |
| City | COS COB |
| State | CT |
| Zip | 06807-2722 |
| Property Category | Residential |
| Property Type | Residential > Condominium / Townhouse > Condominium |
| Local Zoning Code | WB |
| Legal Block | 1675/S |
| Jurisdiction | GREENWICH CT |
| Township / Civil Division | GREENWICH |
| Census Block Group | 1 |
| Census Block | 1011 |
| Census Tract | 10800 |
9 River Rd, Unit 411 is owned and occupied by an individual who bought it in November 2014.
Source: Greenwich Town records, as of October 20, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 9 RIVER RD, 411, COS COB, CT 06807-2722 |
| Occupancy | Owner Occupied |
| 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 | Name on Deed |
|---|---|
| Last Sale | Nov 3, 2014 · Amount on File |
| Deed Sale | Nov 3, 2014 · Amount on File |
| Deed Book / Page | 6808 / 222 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 9 River Rd, Unit 411 was $4,199.
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 | $4,199.00 | $339,780 Building $339,780 | $237,846 Building $237,846 |
| 2024 | $4,199.00 (+6.2%) | ||
| 2023 | $3,954.00 (+0.92%) | $339,780 (-) Building $339,780 | |
| 2022 | $3,918.00 | $339,780 Building $339,780 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 9 River Rd, Unit 411 in Zone AE, a high-risk flood area; flood insurance is required for federally backed loans.
Source: FEMA National Flood Hazard Layer, effective November 28, 2025
| FEMA Flood Zone | Zone AE high risk |
|---|---|
| 100-Year Floodplain | Yes 1% annual chance |
| Floodway | No |
| Base Flood Elevation | 13.0 ft |
| Flood Insurance Requirement | Required federally backed loans |
Values are read at the parcel center point; lenders make the official flood determination.
The area around 9 River Rd, Unit 411 has no burnable land within ember reach, so its wildfire risk is not rated.
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 288 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 |
May also be available: Frontier, T-Mobile.
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