Greenwich Town property record for 11 River St, Greenwich, CT 06831
| Property Type | Duplex |
|---|---|
| Details | 6 bd · 3 ba · 2,584 sqft · built 1980 |
| Lot Size | 0.14 acres (6,098 sqft) |
| Owner | 2 Individual Names on File |
| Tax Bill | $6,433 (2025) |
| Flood Zone | Zone AE (high risk) |
| APN | 09-1841S |
| Primary APN | 09-1841S |
|---|---|
| Alternative APNs |
|
| Bedrooms | 6 Beds |
|---|---|
| Full Baths | 3 Baths |
| Half Baths | 2 Half Baths |
| Total Rooms | 10 Rooms |
| Stories | 2 Stories |
| Building Area | 2,584 sqft Living Area |
| Basement Area | 1,224 sqft |
| Unfinished Basement | 1,224 sqft |
| Year Built | Built 1980 |
|---|---|
| Effective Year Built | Effective 1980 |
| Architectural Style | Duplex Single |
| Exterior Material | Wood Siding |
| Construction Type | Frame |
| Roof Type | Gable |
| Roof Material | Asphalt |
| Lot Area | 6,098 sqft (0.14 acres) |
| Garage Type | Basement |
| Parking Spaces | 2 Parking Spaces |
| Deck Area | Deck Area |
| Cooling System | HVAC |
|---|---|
| Heating System | Hot Water |
| Heating Fuel | Gas |
| Account Number | 142/055 |
|---|---|
| Street Address | 11 RIVER ST |
| City | GREENWICH |
| State | CT |
| Zip | 06831-5028 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Local Zoning Code | R-6 |
| Legal Block | 1841/S |
| Jurisdiction | GREENWICH CT |
| Township / Civil Division | GREENWICH |
| Census Block Group | 2 |
| Census Block | 2000 |
| Census Tract | 10400 |
11 River St, a duplex, is owned and occupied by two individuals.
Source: Greenwich Town records, as of June 25, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 11 RIVER ST, GREENWICH, CT 06831-5028 |
| 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 | 2 Names on Deed |
|---|---|
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 11 River St was $6,433.
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 | $6,433.00 | $520,520 Land $314,720 Building $205,800 | $364,364 Land $220,304 Building $144,060 |
| 2024 | $6,433.00 (+6.21%) | ||
| 2023 | $6,057.00 (+0.92%) | $520,520 (-) Land $314,720 Building $205,800 | |
| 2022 | $6,002.00 | $520,520 Land $314,720 Building $205,800 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 11 River St 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 | Varies along the reach; see FIRM |
| Flood Insurance Requirement | Required federally backed loans |
Values are read at the parcel center point; lenders make the official flood determination.
Wildfire risk around 11 River St 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 98% of the US · lower than 97.2% 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 669 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 | 2,300 / 2,300 |
| Starlink Satellite | 280 / 30 |
May also be available: AT&T, T-Mobile.
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