Sigma Rd, San Antonio, TX Property Records

Bexar County property records for 4 addresses on Sigma Rd, San Antonio, TX · Last verified August 2026

Sigma Rd Highlights

Properties 4
Latest Sale $527,300 (Feb 2021)
Deeds and Mortgages on File 6
Average Living Area 20,084 sq ft
Owner Occupied 25%
Median Annual Tax Bill $70,291
Median Year Built 1989
Median Ownership Tenure 5 years

Properties on Sigma Rd

Owner names and prior sale amounts shown locked below are available instantly with a free trial.

18503 Sigma Rd

28,523 sqft · Built 1986 · 2.42 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Jul 2007 $70,2912025 —Oct 2005 1 Name on Record AssessorUpdated Jun 2026

18540 Sigma Rd

8,105 sqft · Built 2024 · 0.876 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$527,300Feb 2021 $61,2212025 Amount on Record Jan 2005 1 Name on Record Assessor + 4 DocumentsUpdated Aug 2026

18545 Sigma Rd

16,865 sqft · Built 1989 · 2.63 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Apr 2007 $64,1692025 —Jan 2006 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jun 2026

18585 Sigma Rd

26,844 sqft · Built 1985 · 2.41 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Oct 2022 $85,8132025 Amount on Record Dec 2021 1 Name on Record Assessor + 1 DocumentUpdated Aug 2026

Property Records in Nearby Streets