Greenwich Town property record for 9 Ronald Ln, Cos Cob, CT 06807
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3.5 ba · 2,189 sqft · built 1960 |
| Lot Size | 0.32 acres (13,939 sqft) |
| Owner | Individual Name on Record |
| Last Sale | $935,000 (Feb 2008) |
| Tax Bill | $10,113 (2026) |
| Flood Zone | Zone X (minimal risk) |
| APN | 08-3867S |
| Primary APN | 08-3867S |
|---|---|
| Alternative APNs |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 8 Rooms |
| Stories | 1 Story |
| Building Area | 2,189 sqft Living Area |
| Basement Area | 965 sqft |
| Unfinished Basement | 965 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1960 |
|---|---|
| Effective Year Built | Effective 1968 |
| Architectural Style | Split Level |
| Exterior Material | Wood Siding |
| Construction Type | Frame |
| Roof Type | Gable |
| Roof Material | Asphalt |
| Lot Area | 13,939 sqft (0.32 acres) |
| Garage Type | Basement |
| Parking Spaces | 2 Parking Spaces |
| Pool Type | In-Ground Pool |
| Deck Area | Deck Area |
| Cooling System | HVAC |
|---|---|
| Heating System | Hot Water |
| Heating Fuel | Gas |
| Account Number | 401/091 |
|---|---|
| Street Address | 9 RONALD LN |
| City | COS COB |
| State | CT |
| Zip | 06807-1616 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R-12 |
| Legal Block | 3867/S |
| Jurisdiction | GREENWICH CT |
| Township / Civil Division | GREENWICH |
| Census Block Group | 3 |
| Census Block | 3005 |
| Census Tract | 10202 |
Source: Greenwich Town records, as of October 21, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Individual Name on Record |
|---|---|
| Mailing Address | 9 RONALD LN, COS COB, CT 06807-1616 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Feb 11, 2008 · Amount on Record |
| Deed Sale | Feb 11, 2008 · Amount on Record |
| Prior Sale | May 2, 2005 · Amount on Record |
| Deed Book / Page | 5561 / 286 |
| Transfer Doc | 6887-48 |
| Record Updated | Oct 29, 2026 |
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 | $10,113.00 (+16.79%) | $964,600 (+37.68%) Land $645,120 Building $319,480 | $1,980,685 (+303.86%) |
| 2025 | $8,659.00 | $700,630 (-) Land $494,200 Building $206,430 | $490,441 Land $345,940 Building $144,501 |
| 2024 | $8,659.00 (+6.21%) | ||
| 2023 | $8,153.00 (+0.93%) | $700,630 (-) Land $494,200 Building $206,430 | |
| 2022 | $8,078.00 | $700,630 Land $494,200 Building $206,430 |
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 |
|---|---|
| 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 | 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 250 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.
5G and 4G LTE (outdoors only)
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