Williamson County property record for 8403 Delavan Ave, Austin, TX 78717
| Property Type | Single Family Home |
|---|---|
| Details | 2 ba · 1,677 sqft · built 1986 |
| Lot Size | 0.133 acres (5,776 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $150,000 (Apr 2012) |
| Tax Bill | $8,689 (2025) |
| Deeds & Mortgages | Mar 2026 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | R-16-5974-000D-0052 |
| Primary APN | R-16-5974-000D-0052 |
|---|---|
| Alternative APNs |
|
| Full Baths | 2 Baths |
|---|---|
| Stories | 1 Story |
| Building Area | 1,677 sqft Living Area |
| 1st Floor Area | 1,677 sqft |
| Flooring | Carpet |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1986 |
|---|---|
| Effective Year Built | Effective 1994 |
| Roof Type | Hip |
| Lot Area | 5,776 sqft (0.133 acres) |
| Garage Area | 440 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Open Porch |
|---|---|
| Porch Area | 42 sqft |
| Deck Area | 91 sqft |
| Patio Area | 64 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Heating Fuel | Gas |
| Sewer | Connected |
| Account Number | R165974000D0052 |
|---|---|
| Street Address | 8403 DELAVAN AVE |
| City | AUSTIN |
| State | TX |
| Zip | 78717-5401 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | WOODS OF BRUSHY CREEK SEC 2 PHASE 2, BLOCK D, LOT 52 |
| Legal Subdivision | WOODS OF BRUSHY CREEK SEC 2 PHASE 2 |
| Legal Block | D |
| Legal Lot Number | 52 |
| Jurisdiction | WILLIAMSON TX |
| Township / Civil Division | ROUND ROCK-GEORGETOWN |
| Census Block Group | 3 |
| Census Block | 3003 |
| Census Tract | 20517 |
8403 Delavan Ave is owned by two individuals who acquired it in March 2026.
Source: Williamson County records, as of September 11, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 9621 RAINLILLY LN, AUSTIN, TX 78759-7702 |
| 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 | Apr 27, 2012 · Amount on File |
| Deed Sale | Apr 27, 2012 · Amount on File |
| Prior Sale | Apr 26, 2005 · Amount on File |
| Deed Document Number | 201230759 |
| Last Transfer Date | Mar 13, 2026 |
| Transfer Doc | 0000019696 |
| Record Updated | Oct 29, 2026 |
| Document Type | Transfer on Death Deed |
|---|---|
| Jurisdiction | WILLIAMSON TX |
| Recording Date | Mar 13, 2026 |
| Property Address | 8403 DELAVAN AVE, AUSTIN, TX 78717-5401 |
| Document Number | 0000019696 |
| Instrument Date | Mar 13, 2026 |
| Instrument | 2026019696 |
| Transaction Type | Transfer |
| Record Updated | Mar 25, 2026 |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|---|
| Address | 9621 RAINLILLY LN, AUSTIN, TX 78759-7702 |
| Name | Verified Name |
|---|---|
| Address | 9621 RAINLILLY LN, AUSTIN, TX 78759-7702 |
The 2025 property tax bill for 8403 Delavan Ave was $8,689, up 7.4% from the year before.
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 | $8,689.00 (+7.43%) | $422,357 Land $101,000 Building $321,357 | $422,357 Land $101,000 Building $321,357 |
| 2024 | $8,088.00 (+6.63%) | ||
| 2023 | $7,585.00 (-26.44%) | $393,874 Land $105,000 Building $288,874 | $393,874 Land $105,000 Building $288,874 |
| 2022 | $10,312.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 8403 Delavan Ave in Zone X, an area of minimal flood risk.
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 |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 1 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 8403 Delavan Ave is low, with 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 80% of the US · lower than 94% of Texas |
|---|---|
| Wildfire Likelihood | 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 | BRUSHY CREEK MUD serves 18,314 people · EPA ID TX2460061 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | May 2025 |
| Lead | 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. This system sells water to local utilities; the supplier billing this address may be one of them.
Source: FCC Broadband Data Collection, based on 528 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL · Fixed Wireless in parts of the area | 5,000 / 5,000 |
| Spectrum Cable | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
| Starlink Satellite | 280 / 30 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Western Broadband.
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