403 Sylvia Ave, San Antonio, TX 78237 Property Records

Bexar County property record for 403 Sylvia Ave, San Antonio, TX 78237

Property Summary

Property TypeVacant Land
Lot Size0.141 acres (6,159 sqft)
Owner2 Individual Names on File
Tax Bill$892 (2025)
Flood ZoneZone X (minimal risk)
APN09623-001-0110

Property Details

APN / Parcel Number

Primary APN09623-001-0110
Alternative APN
  • 442836

Exterior

Lot Area6,159 sqft (0.141 acres)
Lot Dimensions154 ft deep x 40 ft wide

Location & Zoning

Street Address403 SYLVIA AVE
CitySAN ANTONIO
StateTX
Zip78237-3908
Property CategoryVacant Land
Property TypeVacant Land > Uncategorized
Legal DescriptionNCB 9623 BLK 1 LOT 11 HS
Legal SubdivisionCONV A/S CODE
Legal Block1
Legal Lot Number11
JurisdictionBEXAR TX
Township / Civil DivisionSAN ANTONIO CENTRAL
Census Block Group3
Census Block3032
Census Tract160600

Owner

403 Sylvia Ave, vacant land, is owned by two individuals.

Source: Bexar County records, as of May 26, 2026

Owner of Record2 Individual Names on File
Mailing Address407 SYLVIA AVE, SAN ANTONIO, TX 78237-3908
Owner TypeIndividual

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 Names2 Names on Deed
Record UpdatedSep 20, 2026

Tax Assessment & Valuation

The 2025 property tax bill for 403 Sylvia Ave was $892.

Source: Bexar County assessment roll, as of May 26, 2026

Property Jurisdictions

TypeName
StateTexas
CountyBexar County
MunicipalitySan Antonio City
Unified School DistrictEdgewood Independent School District (PK - 12)

Tax Bill & Assessment History

YearTax BillAssessed ValueAssessed Market Value
2025$892.00$39,300 Land $39,300$39,300 Land $39,300
2024$892.00 (-1.44%)
2023$905.00 (+24.48%)$39,300 Land $39,300$39,300 Land $39,300
2022$727.00

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

Flood

FEMA maps place 403 Sylvia Ave in Zone X, an area of minimal flood risk.

Source: FEMA National Flood Hazard Layer, effective October 12, 2026

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 403 Sylvia Ave 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 SystemSAN ANTONIO WATER SYSTEM
serves 2,643,729 people · EPA ID TX0150018
Water SourcePurchased surface water from several systems
Last State InspectionAug 2023
Lead2 ppb (2022–2024)
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. 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 614 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
AT&T
Fiber · Fixed Wireless in parts of the area
5,000 / 5,000
Spectrum
Cable · Fiber in parts of the area
1,000 / 1,000
Alamo Broadband
Fixed Wireless
450 / 100
Verizon
Fixed Wireless
300 / 20
T-Mobile
Fixed Wireless
100 / 20

May also be available: VTX Communications.

Nearby Properties on Sylvia Ave

Nearby Streets

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