Williamson County property record for 7403 Napier Trl, Austin, TX 78729
| Property Type | Single Family Home |
|---|---|
| Details | 2.5 ba · 2,672 sqft · built 1989 |
| Lot Size | 0.141 acres (6,125 sqft) |
| Owner | Individual Name on File |
| Tax Bill | $9,546 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | R-16-4644-000P-0021 |
| Primary APN | R-16-4644-000P-0021 |
|---|---|
| Alternative APNs |
|
| Full Baths | 2.5 Baths |
|---|---|
| Half Baths | 1 Half Bath |
| Stories | 2 Stories |
| Building Area | 2,672 sqft Living Area |
| 1st Floor Area | 1,124 sqft |
| 2nd Floor Area | 1,548 sqft |
| Flooring | Carpet |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1989 |
|---|---|
| Effective Year Built | Effective 1989 |
| Exterior Material | Wood |
| Roof Type | Gable |
| Lot Area | 6,125 sqft (0.141 acres) |
| Lot Dimensions | 122 ft deep x 50 ft wide |
| Garage Area | 440 sqft |
| Parking Spaces | 2 Parking Spaces |
| Patio Area | 120 sqft |
| Balcony Area | 50 sqft |
| Utility Building | 80 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Heating Fuel | Gas |
| Sewer | Connected |
| Account Number | R164644000P0021 |
|---|---|
| Street Address | 7403 NAPIER TRL |
| City | AUSTIN |
| State | TX |
| Zip | 78729-7410 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | MILWOOD SEC 30-C, BLOCK P, LOT 21 |
| Legal Subdivision | MILWOOD SEC 30-C |
| Legal Block | P |
| Legal Lot Number | 21 |
| Jurisdiction | WILLIAMSON TX |
| Township / Civil Division | ROUND ROCK-GEORGETOWN |
| Census Block Group | 3 |
| Census Block | 3006 |
| Census Tract | 20411 |
7403 Napier Trl is owned and occupied by an individual.
Source: Williamson County records, as of September 11, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 18119 BRANSON FLS, SAN ANTONIO, TX 78255-3327 |
| Occupancy | Owner Occupied |
| 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 | Name on Deed |
|---|---|
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 7403 Napier Trl was $9,546 with a veteran's exemption.
Source: Williamson County assessment roll, as of September 11, 2026
| Type | Name |
|---|---|
| State | Texas |
| County | Williamson County |
| Unified School District | Round Rock Independent School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $9,546.00 Disabled Person's exemption Veteran's exemption | $485,900 Land $100,500 Building $385,400 | $485,900 Land $100,500 Building $385,400 |
| 2023 | $8,985.00 (-26.93%) | $517,414 Land $105,000 Building $412,414 | $517,414 Land $105,000 Building $412,414 |
| 2022 | $12,297.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 7403 Napier Trl 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 5, 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 |
| Nearby Flood Policies | 4 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 risk around 7403 Napier Trl is low, with a 0.03% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 80% of the US · lower than 94% of Texas |
|---|---|
| Wildfire Likelihood | 0.03% annual chance |
| Exposure | Direct burnable vegetation |
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 | NORTH AUSTIN MUD 1 serves 11,133 people · EPA ID TX2270226 |
|---|---|
| Water Source | Purchased surface water from CITY OF AUSTIN WATER & WASTEWATER |
| Last State Inspection | Nov 2025 |
| Lead | Under 1 ppb (2023–2025) 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.
Source: FCC Broadband Data Collection, based on 859 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Spectrum Cable · Fiber in parts of the area | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T DSL · Fiber in parts of the area | 100 / 20 |
May also be available: Google Fiber, Western Broadband.
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