Bexar County property record for 1423 Onslow, San Antonio, TX 78202
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1 ba · 616 sqft · built 1949 |
| Lot Size | 0.133 acres (5,785 sqft) |
| Owner | 2 Individual Names on File |
| Tax Bill | $1,952 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 09549-008-0120 |
| Primary APN | 09549-008-0120 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 4 Rooms |
| Stories | 1 Story |
| Building Area | 616 sqft Living Area |
| Gross Area | 796 sqft |
| 1st Floor Area | 616 sqft |
| Year Built | Built 1949 |
|---|---|
| Effective Year Built | Effective 1972 |
| Architectural Style | Contemporary |
| Exterior Material | Wood |
| Roof Material | Asphalt |
| Lot Area | 5,785 sqft (0.133 acres) |
| Lot Dimensions | 109 ft deep x 20 ft wide |
| Garage Type | Attached |
| Garage Area | 180 sqft |
| Porch | Open Porch |
| Porch Area | 28 sqft |
| Cooling System | HVAC |
|---|---|
| Heating System | Floor/Wall Furnace |
| Street Address | 1423 ONSLOW |
|---|---|
| City | SAN ANTONIO |
| State | TX |
| Zip | 78202-2635 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | NCB 9549 BLK 8 LOT SE 20 FT OF 11 & NW 35 FT OF 12 |
| Legal Subdivision | CONV A/S CODE |
| Legal Block | 8 |
| Legal Lot Number | 12 |
| Jurisdiction | BEXAR TX |
| Township / Civil Division | SAN ANTONIO CENTRAL |
| Census Block Group | 1 |
| Census Block | 1007 |
| Census Tract | 130600 |
1423 Onslow is owned by two individuals who acquired it in August 2010.
Source: Bexar County records, as of May 26, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 9643 WICKLOW DR, SAN ANTONIO, TX 78250-1712 |
| Owner Type | Individual |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Aug 19, 2010 |
| Deed Sale | Aug 19, 2010 |
| Deed Document Number | 2010148733 |
| Deed Book / Page | 14607 / 1528 |
| Prior Transfer Date | Sep 15, 2006 |
| Prior Transfer Doc | 0000275429 |
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 1423 Onslow was $1,952.
Source: Bexar County assessment roll, as of May 26, 2026
| Type | Name |
|---|---|
| State | Texas |
| County | Bexar County |
| Municipality | San Antonio City |
| Unified School District | San Antonio Independent School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $1,952.00 | $80,000 Land $79,120 Building $880 | $80,000 Land $79,120 Building $880 |
| 2024 | $1,952.00 (-2.11%) | ||
| 2023 | $1,994.00 (+5.17%) | $127,560 Land $79,120 Building $48,440 | $127,560 Land $79,120 Building $48,440 |
| 2022 | $1,896.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 1423 Onslow in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.
Source: FEMA National Flood Hazard Layer, effective October 12, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 6 (20% premium discount) |
| Nearby Flood Policies | 3 in force |
| Nearby Flood Claims | 1 (2004) |
| Most Recent Claim | Oct 2004 |
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 risk around 1423 Onslow is low, with less than a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 99.1% of the US · lower than 99.3% of Texas |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | None beyond ember reach |
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | SAN ANTONIO WATER SYSTEM serves 2,643,729 people · EPA ID TX0150018 |
|---|---|
| Water Source | Purchased surface water from several systems |
| Last State Inspection | Aug 2023 |
| Lead | 2 ppb (2022–2024) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | None 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.
Source: FCC Broadband Data Collection, based on 537 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · Fixed Wireless in parts of the area | 5,000 / 5,000 |
| Astound Broadband Cable | 1,500 / 50 |
| Spectrum Cable | 1,000 / 1,000 |
| Alamo Broadband Fixed Wireless | 990 / 300 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: ZipLink Internet.
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