Greenwich Town property record for 577 Round Hill Rd, Greenwich, CT 06831
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 4 ba · 8,188 sqft · built 1910 |
| Lot Size | 6.58 acres (286,625 sqft) |
| Owner | Company Name on File |
| Last Sale | $7,500,000 (Jan 2026) |
| Tax Bill | $53,071 (2026) |
| Deeds & Mortgages | Jan 2026 Sale |
| Flood Zone | Zone X (minimal risk) |
| APN | 10-2806 |
| Primary APN | 10-2806 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 4 Baths |
| Total Rooms | 11 Rooms |
| Building Area | 8,188 sqft Living Area |
| Year Built | Built 1910 |
|---|---|
| Effective Year Built | Effective 1910 |
| Construction Type | Frame |
| Lot Area | 286,625 sqft (6.58 acres) |
| Pool Type | Pool with Hot Tub/Spa |
| Tennis Court | Tennis Court |
| Total Buildings | 2 Buildings |
| Cooling System | HVAC |
|---|
| Account Number | 92/015 |
|---|---|
| Street Address | 577 ROUND HILL RD |
| City | GREENWICH |
| State | CT |
| Zip | 06831-2717 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | RA-4 |
| Legal Block | 2806 |
| Jurisdiction | GREENWICH CT |
| Township / Civil Division | GREENWICH |
| Census Block Group | 3 |
| Census Block | 3007 |
| Census Tract | 10102 |
577 Round Hill Rd is owned by a company that bought it in January 2026.
Source: Greenwich Town records, as of October 21, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 577 ROUND HILL RD, GREENWICH, CT 06831-2717 |
| 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.
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Jan 22, 2026 · Amount on File |
| Deed Sale | Jan 22, 2026 · Amount on File |
| Prior Sale | May 26, 2000 · Amount on File |
| Deed Document Number | 2026445 |
| Deed Book / Page | 8526 / 162 |
| Prior Transfer Date | Jan 20, 2026 |
| Prior Transfer Doc | 008526-162 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed |
|---|---|
| Jurisdiction | GREENWICH CT |
| Recording Date | Jan 22, 2026 |
| Property Address | 577 ROUND HILL RD, GREENWICH, CT 06831-2717 |
| Document Number | 008526-162 |
| Book / Page | 8526 / 162 |
| Instrument Date | Jan 20, 2026 |
| Instrument | 445 |
| Transaction Type | Transfer |
| Record Updated | Feb 4, 2026 |
| Amount | Amount on Record |
|---|---|
| Tax | $0.00 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|
The 2026 property tax bill for 577 Round Hill Rd was $53,071, down 9% 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 | $53,071.00 (-9.03%) | $5,241,600 (+8.18%) Land $2,379,300 Building $2,862,300 | $7,543,572 (+122.42%) |
| 2025 | $58,336.00 | $4,845,190 Land $1,824,130 Building $3,021,060 | $3,391,633 Land $1,276,891 Building $2,114,742 |
| 2024 | $58,336.00 (+5.71%) | ||
| 2023 | $55,187.00 (+0.98%) | $4,845,190 (-) Land $1,824,130 Building $3,021,060 | |
| 2022 | $54,654.00 | $4,845,190 Land $1,824,130 Building $3,021,060 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 577 Round Hill Rd 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 577 Round Hill Rd is low, with a 0.02% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 80% of the US · above 55% of Connecticut |
|---|---|
| Wildfire Likelihood | 0.02% annual chance |
| Exposure | Direct burnable vegetation |
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: FCC Broadband Data Collection, based on 27 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Optimum Fiber · Cable | 8,000 / 8,000 |
| Verizon Fiber | 980 / 880 |
5G (outdoors only) and 4G LTE
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