4800 Gemstone Ct, Mason, OH 45040 Property Records

Warren County property record for 4800 Gemstone Ct, Mason, OH 45040

Property Summary

Property TypeSingle Family Home
Details4 bd · 4 ba · 3,327 sqft · built 2001
Lot Size0.348 acres (15,202 sqft)
Owner2 Owner Names on Record
Last Sale$350,150 (Aug 2002)
Tax Bill$8,338 (2025)
Flood ZoneZone X (minimal risk)
APN12-25-490-002-0

Property Details

APN / Parcel Number

Primary APN12-25-490-002-0
Alternative APNs
  • 1225490002
  • 1132488

Interior

Bedrooms4 Beds
Full Baths4 Baths
Half Baths1 Half Bath
Plumbing Fixtures13 Plumbing Fixtures
Stories2 Stories
Building Area3,327 sqft Living Area
2nd Floor Area1,134 sqft
Basement Area1,465 sqft
Finished Basement1,465 sqft
Fireplaces1 Fireplace
FireplaceFireplace

Exterior

Year BuiltBuilt 2001
Exterior MaterialBrick/Stone
Construction TypeBrick
Foundation TypeConcrete
Lot Area15,202 sqft (0.348 acres)
Garage TypeAttached
Garage Area672 sqft
Parking Spaces2 Parking Spaces
PorchOpen Porch
Porch Area40 sqft

Utilities, Heating & Cooling

Cooling SystemHVAC
Heating SystemForced Air
Heating FuelGas

Location & Zoning

Account Number1132488
Old Parcel Number1225490002
Street Address4800 GEMSTONE CT
CityMASON
StateOH
Zip45040-3307
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionWEATHERSTONE 2 LOT# 47
Legal SubdivisionWEATHERSTONE 2
Legal Block490
Legal Lot Number47
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 shown locked on this page are available instantly with a free trial.

Owner of Record2 Owner Names on Record
Mailing Address4800 GEMSTONE CT, MASON, OH 45040-3307
OccupancyOwner Occupied

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names2 Names on Deed
Last SaleAug 20, 2002 · Amount on Record
Deed SaleAug 20, 2002 · Amount on Record
Prior SaleAug 13, 2001 · Amount on Record
Deed Document Number0026370931
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$8,338.00 (+11.8%)$206,462 (+32.98%) Land $49,000 Building $157,462$589,890 (+32.98%) Land $140,000 Building $449,890
2023$7,458.00 (+1.3%) Homeowner's exemption$155,257 (-) Land $30,800 Building $124,457
2022$7,362.00 Homeowner's exemption$155,257 Land $30,800 Building $124,457$443,590 (-) Land $88,000 Building $355,590
2021$443,590 Land $88,000 Building $355,590

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 99.1% of the US · lower than 96% 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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