Greenwich Town property record for 317 Hamilton Ave, Greenwich, CT 06830
| Property Type | Mixed Use Commercial Office / Residential |
|---|---|
| Details | 1,600 sqft · built 1952 |
| Lot Size | 0.15 acres (6,534 sqft) |
| Owner | 2 Individual Names on File |
| Tax Bill | $4,146 (2026) |
| Flood Zone | Zone X (minimal risk) |
| APN | 03-1408S |
| Primary APN | 03-1408S |
|---|---|
| Alternative APNs |
|
| Total Rooms | 1 Room |
|---|---|
| Stories | 2 Stories |
| Building Area | 1,600 sqft Total Area |
| Year Built | Built 1952 |
|---|---|
| Effective Year Built | Effective 1952 |
| Exterior Material | Concrete Block |
| Construction Type | Frame |
| Roof Type | Gable |
| Roof Material | Shingle |
| Lot Area | 6,534 sqft (0.15 acres) |
| Heating System | Hot Water |
|---|
| Account Number | 216/041 |
|---|---|
| Street Address | 317 HAMILTON AVE |
| City | GREENWICH |
| State | CT |
| Zip | 06830 |
| Property Category | Commercial |
| Property Type | Commercial > Office > Mixed Use Commercial Office / Residential |
| Local Zoning Code | R-6 |
| Legal Block | 1408/S |
| Jurisdiction | GREENWICH CT |
| Township / Civil Division | GREENWICH |
| Census Block Group | 4 |
| Census Block | 4000 |
| Census Tract | 10500 |
317 Hamilton Ave, a commercial property, is owned by two individuals.
Source: Greenwich Town records, as of October 21, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 319 HAMILTON AVE, GREENWICH, CT 06830-6574 |
| 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 | Oct 29, 2026 |
The 2026 property tax bill for 317 Hamilton Ave was $4,146, down 1% 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 | $4,146.00 (-10.05%) | $395,430 (+6.04%) Land $272,370 Building $123,060 | |
| 2025 | $4,609.00 | $372,890 Land $268,590 Building $104,300 | $261,023 Land $188,013 Building $73,010 |
| 2024 | $4,609.00 (+6.22%) | ||
| 2023 | $4,339.00 (+0.93%) | $372,890 (-) Land $268,590 Building $104,300 | |
| 2022 | $4,299.00 | $372,890 Land $268,590 Building $104,300 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 317 Hamilton Ave in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.
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.
The area around 317 Hamilton Ave 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 153 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 |
| T-Mobile Fixed Wireless | 100 / 20 |
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