Greenwich Town property record for 10 Lyon Ave, Greenwich, CT 06830
| Property Type | Duplex |
|---|---|
| Details | 4 bd · 3.5 ba · 1,908 sqft · built 1949 |
| Lot Size | 0.14 acres (6,098 sqft) |
| Owner | Company Name on File |
| Last Sale | $390,000 (Feb 2010) |
| Tax Bill | $5,458 (2026) |
| Deeds & Mortgages | Apr 2026 Transfer Feb 2018 Line of Credit |
| Flood Zone | Zone X (minimal risk) |
| APN | 03-1461S |
| Primary APN | 03-1461S |
|---|---|
| Alternative APNs |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 9 Rooms |
| Stories | 2 Stories |
| Building Area | 1,908 sqft Living Area |
| Basement Area | 242 sqft |
| Unfinished Basement | 242 sqft |
| Year Built | Built 1949 |
|---|---|
| Effective Year Built | Effective 1970 |
| Architectural Style | Duplex Single |
| Exterior Material | Brick |
| Construction Type | Frame |
| Roof Type | Gable |
| Roof Material | Asphalt |
| Lot Area | 6,098 sqft (0.14 acres) |
| Garage Type | Basement |
| Parking Spaces | 1 Parking Space |
| Cooling System | HVAC |
|---|---|
| Heating System | Hot Water |
| Heating Fuel | Oil |
| Account Number | 215/194 |
|---|---|
| Street Address | 10 LYON AVE |
| City | GREENWICH |
| State | CT |
| Zip | 06830-6206 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Local Zoning Code | R-6 |
| Legal Block | 1461/S |
| Jurisdiction | GREENWICH CT |
| Township / Civil Division | GREENWICH |
| Census Block Group | 4 |
| Census Block | 4003 |
| Census Tract | 10500 |
10 Lyon Ave, a duplex, is owned by a company that bought it in February 2010.
Source: Greenwich Town records, as of October 21, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 1076 FAIRFIELD BEACH RD, FAIRFIELD, CT 06824-6517 |
| Owner Type | Company |
| Vesting | Company |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Date | Document |
|---|---|
| Apr 28, 2026 | Quit Claim Deed, Transfer Quitclaim |
| Feb 26, 2018 | Deed of Trust, Mortgage · Line of Credit FIELDPOINT PRIVATE BANK & TRUST |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Feb 1, 2010 · Amount on File |
| Deed Sale | Feb 1, 2010 · Amount on File |
| Prior Sale | Nov 27, 2006 · Amount on File |
| Deed Book / Page | 5901 / 161 |
| Transfer Doc | 6578000328 |
| Record Updated | Oct 29, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | GREENWICH CT |
| Recording Date | Apr 28, 2026 |
| Property Address | 10 LYON AVE, GREENWICH, CT 06830-6206 |
| Document Number | 0008558-69 |
| Book / Page | 8558 / 69 |
| Instrument Date | Apr 23, 2026 |
| Instrument | 20262328 |
| Transaction Type | Transfer |
| Record Updated | Aug 28, 2026 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | No Consideration Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 1076 FAIRFIELD BEACH RD, FAIRFIELD, CT 06824-6517 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | GREENWICH CT |
| Property Address | 10 LYON AVE, GREENWICH, CT 06830-6206 |
| Transaction Type | Mortgage |
| Record Updated | Feb 5, 2021 |
| Name | Verified Name |
|---|
| Document Number | 8354-32 |
|---|---|
| Date | Feb 26, 2018 |
| Book Page | 8354/32 |
| Name | FIELDPOINT PRIVATE BANK & TRUST |
|---|---|
| Type | Bank |
| Type | Line of Credit |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | Feb 1, 2048 |
The 2026 property tax bill for 10 Lyon Ave was $5,458, up 2.1% 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 | $5,458.00 (+2.13%) | $520,590 (+20.4%) Land $343,420 Building $177,170 | $954,604 (+215.39%) |
| 2025 | $5,344.00 | $432,390 Land $304,710 Building $127,680 | $302,673 Land $213,297 Building $89,376 |
| 2024 | $5,344.00 (+6.22%) | ||
| 2023 | $5,031.00 (+0.92%) | $432,390 (-) Land $304,710 Building $127,680 | |
| 2022 | $4,985.00 | $432,390 Land $304,710 Building $127,680 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 10 Lyon Ave in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective November 28, 2025
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
Wildfire risk around 10 Lyon Ave 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 492 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 |
| Starlink Satellite | 280 / 30 |
| T-Mobile Fixed Wireless | 100 / 20 |
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