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4819 Gemstone Ct, Mason, OH 45040 Property Records

Warren County property record for 4819 Gemstone Ct, Mason, OH 45040

Property Summary

Property TypeSingle Family Home
Details4 bd · 3 ba · 3,288 sqft · built 2001
Lot Size0.344 acres (14,985 sqft)
Owner2 Owner Names on Record
Last Sale$384,375 (Dec 2001)
Tax Bill$7,339 (2025)
Flood ZoneZone X (minimal risk)
APN12-25-490-010-0

Property Details

APN / Parcel Number

Primary APN12-25-490-010-0
Alternative APNs
  • 1225490010
  • 1132496

Interior

Bedrooms4 Beds
Full Baths3 Baths
Half Baths1 Half Bath
Plumbing Fixtures10 Plumbing Fixtures
Stories3 Stories
Building Area3,288 sqft Living Area
2nd Floor Area1,126 sqft
Fireplaces1 Fireplace
FireplaceFireplace

Exterior

Year BuiltBuilt 2001
Exterior MaterialBrick/Stone
Construction TypeBrick
Foundation TypeConcrete
Lot Area14,985 sqft (0.344 acres)
Garage TypeAttached
Garage Area630 sqft
Parking Spaces2 Parking Spaces
Deck Area455 sqft

Utilities, Heating & Cooling

Cooling SystemHVAC
Heating SystemForced Air
Heating FuelGas

Location & Zoning

Account Number1132496
Old Parcel Number1225490010
Street Address4819 GEMSTONE CT
CityMASON
StateOH
Zip45040-3309
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionWEATHERSTONE 2 LOT# 55
Legal SubdivisionWEATHERSTONE 2
Legal Block490
Legal Lot Number55
JurisdictionWARREN OH
Township / Civil DivisionMASON
Census Block Group2
Census Block2029
Census Tract31905

Owner

Source: Warren County records, as of February 20, 2026

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

Owner of Record2 Owner Names on Record
Mailing Address4819 GEMSTONE CT, MASON, OH 45040-3309
OccupancyOwner Occupied

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names2 Names on Deed
Last SaleDec 4, 2001 · Amount on Record
Deed SaleDec 4, 2001 · Amount on Record
Prior SaleMay 23, 2001 · Amount on Record
Deed Document Number0002366258
Deed Book / Page2366 / 258
Record UpdatedJun 8, 2026

Tax Assessment & Valuation

Source: Warren County assessment roll, as of August 1, 2025

Property Jurisdictions

TypeName
StateOhio
CountyWarren County
MunicipalityMason City
Unified School DistrictMason City School District (PK - 12)

Tax Bill & Assessment History

YearTax BillAssessed ValueAssessed Market Value
2025$7,339.00 (+13.13%)$191,884 (+33.44%) Land $49,000 Building $142,884$548,240 (+33.44%) Land $140,000 Building $408,240
2023$6,487.00 (+1.31%) Homeowner's exemption$143,794 (-) Land $30,800 Building $112,994
2022$6,403.00 Homeowner's exemption$143,794 Land $30,800 Building $112,994$410,840 (-) Land $88,000 Building $322,840
2021$410,840 Land $88,000 Building $322,840

Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.

Flood

Source: FEMA National Flood Hazard Layer, effective June 25, 2025 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it
Nearby Flood Policies1 in force

Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.

Wildfire

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire RiskLow
lower than 96% of the US · lower than 81% of Ohio
Wildfire LikelihoodUnder 0.01% annual chance
ExposureNone
beyond 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 SystemCINCINNATI PUBLIC WATER SYSTEM
serves 800,000 people · EPA ID OH3102612
Water SourceSurface water
Last State InspectionDec 2024
Lead2 ppb (2026)
action level 15 ppb

Violations Reported to EPA

Water QualityNone
last 10 years
Treatment and ProcedureNone
last 10 years
Monitoring and ReportingNone
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 287 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
altafiber Network Solutions
Fiber		3,000 / 3,000
Spectrum
Cable		1,000 / 1,000
T-Mobile
Fixed Wireless		100 / 20
AT&T
Fixed Wireless		100 / 20

May also be available: Verizon.

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