100 Mason St, Greenwich, CT 06830 Property Records

Greenwich Town property record for 100 Mason St, Greenwich, CT 06830

Property Summary

Property TypeParking Lot
Lot Size0.17 acres (7,405 sqft)
OwnerCompany Name on File
Last Sale$850,000 (Sep 2012)
Tax Bill$12,788 (2024)
Flood ZoneZone X (minimal risk)
APN01-1875S

Property Details

APN / Parcel Number

Primary APN01-1875S
Alternative APNs
  • GREE M:01 B:1875/S
  • 284/093

Exterior

Lot Area7,405 sqft (0.17 acres)

Location & Zoning

Account Number284/093
Street Address100 MASON ST
CityGREENWICH
StateCT
Zip06830-6629
Property CategoryCommercial
Property TypeCommercial > Retail > Parking Lot
Local Zoning CodeCGB
Legal Block1875/S
JurisdictionGREENWICH CT
Township / Civil DivisionGREENWICH
Census Block Group1
Census Block1001
Census Tract10600

Owner

100 Mason St, a commercial property, is owned by a company that bought it in September 2012.

Source: Greenwich Town records, as of June 25, 2026

Owner of RecordCompany Name on File
Mailing Address900 BEDFORD ST, STAMFORD, CT 06901-1104
Owner TypeCompany

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesName on Deed
Last SaleSep 7, 2012 · Amount on File
Deed SaleSep 7, 2012 · Amount on File
Deed Book / Page6413 / 122
Record UpdatedSep 20, 2026

Tax Assessment & Valuation

Source: Greenwich Town assessment roll, as of June 25, 2026

Property Jurisdictions

TypeName
StateConnecticut
County SubdivisionGreenwich Town
Unified School DistrictGreenwich School District (PK - 12)

Tax Bill & Assessment History

YearTax BillAssessed ValueAssessed Market Value
2025$1,034,740 Land $1,023,890 Building $10,850$724,318 Land $716,723 Building $7,595
2024$12,788.00 (+6.21%)
2023$12,040.00 (+0.91%)$1,034,740 (-) Land $1,023,890 Building $10,850
2022$11,931.00$1,034,740 Land $1,023,890 Building $10,850

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Flood

FEMA maps place 100 Mason St in Zone X, an area of minimal flood risk.

Source: FEMA National Flood Hazard Layer, effective November 28, 2025

FEMA Flood ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it

Values are read at the parcel center point; lenders make the official flood determination.

Wildfire

The area around 100 Mason St 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 RiskNot rated
no burnable land within ember reach

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water SystemAQUARION-EASTERN FAIRFIELD COUNTY
private · serves 351,756 people · EPA ID CT0150011
Water SourceSurface water
Last State InspectionJun 2025
LeadUnder 1 ppb (2026)
action level 15 ppb

Violations Reported to EPA

Water QualityNone
last 10 years
Treatment and ProcedureNone
last 10 years
Monitoring and Reporting24
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.

Internet Providers

Source: FCC Broadband Data Collection, based on 501 locations within half a mile, as of December 31, 2025

ProviderMax 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.

Nearby Properties on Mason St

Nearby Streets

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