Greenwich Town property record for 56 Mason St, Greenwich, CT 06830
| Property Type | Office Building |
|---|---|
| Details | 4,663 sqft · built 1930 |
| Lot Size | 0.22 acres (9,583 sqft) |
| Owner | Company Name on Record |
| Last Sale | $975,000 (Apr 1999) |
| Tax Bill | $41,018 (2026) |
| Flood Zone | Zone X (minimal risk) |
| APN | 01-2203S |
| Primary APN | 01-2203S |
|---|---|
| Alternative APNs |
|
| Stories | 3 Stories |
|---|---|
| Building Area | 4,663 sqft Total Area |
| Basement Area | 1,589 sqft |
| Unfinished Basement | 1,589 sqft |
| Year Built | Built 1930 |
|---|---|
| Effective Year Built | Effective 1930 |
| Construction Type | Frame |
| Roof Type | Gable |
| Roof Material | Shingle |
| Lot Area | 9,583 sqft (0.22 acres) |
| Heating System | Forced Air with A/C |
|---|
| Account Number | 284/097 |
|---|---|
| Street Address | 56 MASON ST |
| City | GREENWICH |
| State | CT |
| Zip | 06830-5515 |
| Property Category | Commercial |
| Property Type | Commercial > Office > Office Building |
| Local Zoning Code | CGB |
| Legal Block | 2203/S |
| Jurisdiction | GREENWICH CT |
| Township / Civil Division | GREENWICH |
| Census Block Group | 2 |
| Census Block | 2009 |
| Census Tract | 10600 |
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 | Company Name on Record |
|---|---|
| Mailing Address | 1 GREENWICH OFFICE PARK, 350, GREENWICH, CT 06831-5195 |
| Owner Type | Company |
| Vesting | Company |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Apr 20, 1999 · Amount on Record |
| Deed Sale | Apr 20, 1999 · Amount on Record |
| Prior Sale | Aug 6, 1998 · Amount on Record |
| Deed Book / Page | 3257 / 83 |
| 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 | $41,018.00 (-5.74%) | $3,912,440 (+11.11%) Land $1,530,620 Building $2,381,820 | |
| 2025 | $43,518.00 | $3,521,140 (+8.58%) Land $1,449,910 Building $2,071,230 | $2,464,798 Land $1,014,937 Building $1,449,861 |
| 2024 | $43,518.00 (+15.33%) | ||
| 2023 | $37,733.00 (+0.92%) | $3,242,820 (-) Land $1,449,910 Building $1,792,910 | |
| 2022 | $37,390.00 | $3,242,820 Land $1,449,910 Building $1,792,910 |
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 501 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 |
May also be available: AT&T, Frontier.
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