Greenwich Town property record for 105 River Rd, Cos Cob, CT 06807
| Property Type | Commercial |
|---|---|
| Details | 7,252 sqft · built 1940 |
| Lot Size | 2.03 acres (88,427 sqft) |
| Owner | 2 Trust Names on File |
| Tax Bill | $66,948 (2026) |
| Flood Zone | Zone AE (high risk) |
| APN | 08-1417S |
| Primary APN | 08-1417S |
|---|---|
| Alternative APNs |
|
| Stories | 2 Stories |
|---|---|
| Building Area | 7,252 sqft Total Area |
| Year Built | Built 1940 |
|---|---|
| Effective Year Built | Effective 1940 |
| Construction Type | Frame |
| Lot Area | 88,427 sqft (2.03 acres) |
| View / Lot | Waterfront |
| Boat Access | Boat Access |
| Total Buildings | 2 Buildings |
| Account Number | 387/066 |
|---|---|
| Street Address | 105 RIVER RD |
| City | COS COB |
| State | CT |
| Zip | 06807-2554 |
| Property Category | Commercial |
| Property Type | Commercial > Retail |
| Local Zoning Code | WB |
| Legal Subdivision | RIVER RUN AT THE HILL |
| Legal Block | 1417/S |
| Jurisdiction | GREENWICH CT |
| Township / Civil Division | GREENWICH |
| Census Block Group | 1 |
| Census Block | 1007 |
| Census Tract | 10800 |
105 River Rd, a commercial property, is held in a trust since November 2020.
Source: Greenwich Town records, as of October 21, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 163 VALLEY RD, COS COB, CT 06807-2228 |
| Owner Type | Individual |
| Vesting | Trust |
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 Transfer Date | Nov 20, 2020 |
| Transfer Doc | 007792-311 |
| Record Updated | Oct 29, 2026 |
The 2026 property tax bill for 105 River Rd was $66,948, up 19.5% 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 | $66,948.00 (+19.52%) | $6,385,750 (+40.9%) Land $3,696,770 Building $2,688,980 | |
| 2025 | $56,014.00 | $4,532,220 Land $3,416,140 Building $1,116,080 | $3,172,554 Land $2,391,298 Building $781,256 |
| 2024 | $56,014.00 (+6.21%) | ||
| 2023 | $52,737.00 (+0.92%) | $4,532,220 (-) Land $3,416,140 Building $1,116,080 | |
| 2022 | $52,256.00 | $4,532,220 Land $3,416,140 Building $1,116,080 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 105 River Rd 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 | 11.0 ft |
| Flood Insurance Requirement | Required federally backed loans |
Values are read at the parcel center point; lenders make the official flood determination.
Wildfire risk around 105 River Rd 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 99.1% of the US · lower than 99% of Connecticut |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | None beyond 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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