Greenwich Town property record for 57 Valley Rd, Cos Cob, CT 06807
| Property Type | Duplex |
|---|---|
| Details | 4 bd · 2 ba · 1,819 sqft · built 1918 |
| Lot Size | 0.32 acres (13,939 sqft) |
| Owner | Company Name on Record |
| Last Sale | $840,000 (Feb 2022) |
| Tax Bill | $6,482 (2025) |
| Deeds & Mortgages | Feb 2022 Sale |
| Flood Zone | Zone X (minimal risk) |
| APN | 08-1923S |
| Primary APN | 08-1923S |
|---|---|
| Alternative APNs |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 10 Rooms |
| Stories | 2 Stories |
| Building Area | 1,819 sqft Living Area |
| Basement Area | 780 sqft |
| Unfinished Basement | 780 sqft |
| Year Built | Built 1918 |
|---|---|
| Effective Year Built | Effective 1960 |
| Architectural Style | Duplex Single |
| Exterior Material | Wood Siding |
| Construction Type | Frame |
| Roof Type | Gable |
| Roof Material | Asphalt |
| Lot Area | 13,939 sqft (0.32 acres) |
| Heating System | Hot Water |
|---|---|
| Heating Fuel | Oil |
| Account Number | 386/141 |
|---|---|
| Street Address | 57 VALLEY RD |
| City | COS COB |
| State | CT |
| Zip | 06807-2536 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Local Zoning Code | R-6 |
| Legal Block | 1923/S |
| Jurisdiction | GREENWICH CT |
| Township / Civil Division | GREENWICH |
| Census Block Group | 1 |
| Census Block | 1000 |
| Census Tract | 10800 |
Source: Greenwich Town records, as of June 25, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Company Name on Record |
|---|---|
| Mailing Address | 90 VALLEY RD, COS COB, CT 06807-2210 |
| Owner Type | Company |
| Vesting | Company |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Feb 28, 2022 · Amount on Record |
| Deed Sale | Feb 28, 2022 · Amount on Record |
| Deed Document Number | 20221818 |
| Deed Book / Page | 8066 / 283 |
| Record Updated | Sep 20, 2026 |
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | GREENWICH CT |
| Recording Date | Feb 28, 2022 |
| Property Address | 57 VALLEY RD, COS COB, CT 06807-2536 |
| Document Number | 008066-283 |
| Book / Page | 8066 / 283 |
| Instrument Date | Feb 23, 2022 |
| Instrument | 1818 |
| Transaction Type | Transfer |
| Record Updated | Mar 17, 2022 |
| Amount | Amount Recorded |
|---|---|
| Tax | $0.00 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 90 RIVER RD, COS COB, CT 06807-2516 |
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 | $6,482.00 | $524,440 (-) Land $396,130 Building $128,310 | $367,108 Land $277,291 Building $89,817 |
| 2024 | $6,482.00 (+6.23%) | ||
| 2023 | $6,102.00 (+0.91%) | $524,440 (-) Land $396,130 Building $128,310 | |
| 2022 | $6,047.00 | $524,440 Land $396,130 Building $128,310 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
Source: FEMA National Flood Hazard Layer, effective November 28, 2025
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
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 | 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 392 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Optimum Fiber · Cable | 8,000 / 8,000 |
| Frontier Fiber | 5,000 / 5,000 |
| Verizon Fixed Wireless · Fiber in parts of the area | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: AT&T.
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