4603 Old Castle Rd, Austin, TX 78745 Property Records

Travis County property record for 4603 Old Castle Rd, Austin, TX 78745

Property Summary

Property TypeSingle Family Home
Details2 ba · 1,038 sqft · built 1970
Lot Size0.23 acres (10,049 sqft)
Owner2 Owner Names on Record
Tax Bill$1,780 (2024)
Flood ZoneZone X (minimal risk)
APN0414030612

Property Details

APN / Parcel Number

Primary APN0414030612
Alternative APNs
  • 04140306120000
  • 320500

Interior

Full Baths2 Baths
Stories1 Story
Building Area1,038 sqft Living Area
Gross Area1,473 sqft
1st Floor Area1,038 sqft

Exterior

Year BuiltBuilt 1970
Construction TypeWood Frame
Lot Area10,049 sqft (0.23 acres)
Lot Dimensions145 ft deep x 70 ft wide
Garage TypeAttached
Garage Area435 sqft
Parking Spaces2 Parking Spaces
PorchOpen Porch
Porch Area24 sqft
Patio Area100 sqft

Utilities, Heating & Cooling

Cooling SystemHVAC
Heating SystemHVAC

Location & Zoning

Account Number320500
Old Parcel Number04140306120000
Street Address4603 OLD CASTLE RD
CityAUSTIN
StateTX
Zip78745-2007
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionLOT 2 BLK G GREENWOOD HILLS SEC 6
Legal SubdivisionGREENWOOD HILLS SEC 6
Legal BlockG
Legal Lot Number2
JurisdictionTRAVIS TX
Township / Civil DivisionAUSTIN
Census Block Group1
Census Block1017
Census Tract2403

Owner

Source: Travis County records, as of November 3, 2025

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 Address4603 OLD CASTLE RD, AUSTIN, TX 78745-2007
OccupancyOwner Occupied

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names2 Names on Deed
Last Transfer DateDec 22, 2010
Transfer Doc0000191820
Record UpdatedJun 8, 2026

Tax Assessment & Valuation

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

Property Jurisdictions

TypeName
StateTexas
MunicipalityAustin City
CountyTravis County
Unified School DistrictAustin Independent School District (PK - 12)

Tax Bill & Assessment History

YearTax BillAssessed ValueAssessed Market Value
2025$447,325 (-14.71%) Land $364,309 Building $122,040$486,349 (-7.27%) Land $364,309 Building $122,040
2024$1,780.00 (-13.04%)
2023$524,501 Land $350,000 Building $174,501$524,501 Land $350,000 Building $174,501
2022$2,047.00

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

Flood

Source: FEMA National Flood Hazard Layer, effective May 17, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it
Community Rating SystemClass 5 (25% premium discount)
Nearby Flood Policies7 in force
Nearby Flood Claims8 (2010–2025)
Claims Outside the SFHA8 of 8
Most Recent ClaimJul 2025 · Severe Storms, Straight-line Winds, And Flooding
Claims by Event
  • Severe Storms, Tornadoes, Straight-line Winds, And Flooding, Oct 2015 · 3 claims

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 99.8% of the US · lower than 99.8% of Texas
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 SystemCITY OF AUSTIN WATER & WASTEWATER
serves 1,115,323 people · EPA ID TX2270001
Water SourceSurface water
Last State InspectionJul 2023
LeadUnder 1 ppb (2022–2024)
action level 15 ppb

Violations Reported to EPA

Water QualityTurbidity
resolved · Feb 2022
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. This system sells water to local utilities; the supplier billing this address may be one of them.

Internet Providers

Source: FCC Broadband Data Collection, based on 343 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Google Fiber
Fiber
8,000 / 8,000
Spectrum
Cable · Fiber in parts of the area
1,000 / 1,000
Verizon
Fixed Wireless
300 / 20
Starlink
Satellite
280 / 30
T-Mobile
Fixed Wireless
100 / 20
AT&T
DSL · Fiber in parts of the area
100 / 20

May also be available: Astound Broadband.

Nearby Properties on Old Castle Rd

Nearby Streets

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