Williamson County property record for 400 Rubio Ave, Round Rock, TX 78664
| Property Type | Single Family Home |
|---|---|
| Details | 2 ba · 1,384 sqft · built 2018 |
| Lot Size | 8.03 acres (350,222 sqft) |
| Owner | 2 Individual Names on Record |
| Tax Bill | $4,924 (2025) |
| Deeds & Mortgages | Jul 2019 Sale |
| Flood Zone | Zone AE (high risk) |
| APN | R-16-0298-0000-0021 |
| Primary APN | R-16-0298-0000-0021 |
|---|---|
| Alternative APNs |
|
| Full Baths | 2 Baths |
|---|---|
| Stories | 1 Story |
| Building Area | 1,384 sqft Living Area |
| 1st Floor Area | 1,384 sqft |
| Flooring | Carpet |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 2018 |
|---|---|
| Effective Year Built | Effective 2018 |
| Lot Area | 350,222 sqft |
| Garage Area | 420 sqft |
| Parking Spaces | 4 Parking Spaces |
| Porch | Open Porch |
|---|---|
| Porch Area | 24 sqft |
| Canopy | 460 sqft |
| Utility Building | 690 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Heating Fuel | Gas |
| Sewer | Connected |
| Account Number | R16029800000021 |
|---|---|
| Street Address | 400 RUBIO AVE |
| City | ROUND ROCK |
| State | TX |
| Zip | 78664-6011 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | SF2 |
| Legal Description | AW0298 - HARRIS, W. SUR., ACRES 8.04, (DRAINAGE EASEMENT) |
| Legal Subdivision | HARRIS, W. SUR. |
| Legal Block | 1 |
| Jurisdiction | WILLIAMSON TX |
| Township / Civil Division | ROUND ROCK-GEORGETOWN |
| Census Block Group | 1 |
| Census Block | 1058 |
| Census Tract | 20701 |
Source: Williamson County records, as of September 11, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Individual Names on Record |
|---|---|
| Mailing Address | 400 RUBIO AVE, ROUND ROCK, TX 78664-6011 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Married Couple |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jul 17, 2019 |
| Deed Sale | Jul 17, 2019 |
| Deed Document Number | 201964632 |
| Last Transfer Date | Nov 16, 2023 |
| Transfer Doc | 0000009400 |
| Record Updated | Oct 29, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | WILLIAMSON TX |
| Recording Date | Jul 17, 2019 |
| Property Address | 400 RUBIO AVE, ROUND ROCK, TX 78664-6011 |
| Document Number | 0000064632 |
| Instrument Date | Jul 11, 2019 |
| Instrument | 64632 |
| Transaction Type | Transfer |
| Record Updated | Aug 2, 2019 |
| Title Company | NOT AVAILABLE |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Revocable Trust |
| Address | 7301 N FM 620 RD #155343 AUSTIN TX 787264539, 155343, AUSTIN, TX 78726-4539 |
Source: Williamson County assessment roll, as of September 11, 2026
| Type | Name |
|---|---|
| State | Texas |
| County | Williamson County |
| Municipality | Round Rock City |
| Unified School District | Round Rock Independent School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $4,924.00 (+6.28%) | $381,844 (+17.1%) | $654,301 (+100.65%) Land $192,370 Building $461,931 |
| 2024 | $4,633.00 (-18.99%) | ||
| 2023 | $5,719.00 (+16%) | $326,091 Land $75,293 Building $250,798 | $326,091 Land $75,293 Building $250,798 |
| 2022 | $4,930.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
Source: FEMA National Flood Hazard Layer, effective October 5, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone AE high risk |
|---|---|
| 100-Year Floodplain | Yes 1% annual chance |
| Floodway | Yes |
| Base Flood Elevation | Varies along the reach; see FIRM |
| Flood Insurance Requirement | Required federally backed loans |
| Nearby Flood Policies | 2 in force |
| Nearby Flood Claims | 8 (1984–1991) |
| Most Recent Claim | Jan 1991 · river or lake flooding |
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.
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 | CITY OF ROUND ROCK serves 130,662 people · EPA ID TX2460003 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Sep 2023 |
| Lead | 5 ppb (2021–2023) 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 66 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 · Fiber in parts of the area | 1,000 / 50 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Astound Broadband, Google Fiber, SOS Communications.
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