Greenwich Town property record for 9 River Rd, Unit 417, Cos Cob, CT 06807
| Property Type | Condominium |
|---|---|
| Details | 1 bd · 1 ba · 1,021 sqft · built 1979 |
| Lot Size | 2.75 acres (120,022 sqft) |
| Owner | Individual Name on File |
| Last Sale | $340,000 (Aug 2012) |
| Tax Bill | $3,705 (2025) |
| Flood Zone | Zone AE (high risk) |
| APN | 08A-1681S |
| Primary APN | 08A-1681S |
|---|---|
| Alternative APNs |
|
| Bedrooms | 1 Bed |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 4 Rooms |
| Units | 20 Units |
| Stories | 2 Stories |
| Building Area | 1,021 sqft Living Area |
| 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/D17 |
|---|---|
| Street Address | 9 RIVER RD, 417 |
| City | COS COB |
| State | CT |
| Zip | 06807-2747 |
| Property Category | Residential |
| Property Type | Residential > Condominium / Townhouse > Condominium |
| Local Zoning Code | WB |
| Legal Subdivision | PALMER POINT |
| Legal Block | 1681/S |
| Jurisdiction | GREENWICH CT |
| Township / Civil Division | GREENWICH |
| Census Block Group | 1 |
| Census Block | 1011 |
| Census Tract | 10800 |
9 River Rd, Unit 417 is owned and occupied by an individual who bought it in August 2012.
Source: Greenwich Town records, as of October 20, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 9 RIVER RD, 417, COS COB, CT 06807-2747 |
| 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 | Aug 23, 2012 · Amount on File |
| Deed Sale | Aug 23, 2012 · Amount on File |
| Prior Sale | Oct 9, 2007 · Amount on File |
| Deed Book / Page | 6403 / 87 |
| Transfer Doc | 0005502-62 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 9 River Rd, Unit 417 was $3,705.
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 | $3,705.00 | $299,810 Building $299,810 | $209,867 Building $209,867 |
| 2024 | $3,705.00 (+6.19%) | ||
| 2023 | $3,489.00 (+0.93%) | $299,810 (-) Building $299,810 | |
| 2022 | $3,457.00 | $299,810 Building $299,810 |
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 417 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 417 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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