Williamson County property record for 550 Co Rd 439, Thorndale, TX 76577
| Property Type | Rural Home |
|---|---|
| Details | 3 bd · 3 ba · 3,526 sqft · built 1980 |
| Lot Size | 124 acres (5,433,369 sqft) |
| Owner | 2 Individual Names on File |
| Tax Bill | $940 (2025) |
| Deeds & Mortgages | Jun 2017 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | R-04-M024-5000-0004 |
| Primary APN | R-04-M024-5000-0004 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 3 Baths |
| Stories | 1 Story |
| Building Area | 3,526 sqft Living Area |
| 1st Floor Area | 3,526 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1980 |
|---|---|
| Effective Year Built | Effective 1980 |
| Exterior Material | Wood |
| Roof Type | Gable |
| Lot Area | 5,433,369 sqft |
| Garage Area | 1,300 sqft |
| Parking Spaces | 5 Parking Spaces |
| Porch | Open Porch |
|---|---|
| Porch Area | 3,419 sqft |
| Patio Area | 900 sqft |
| Total Buildings | 2 Buildings |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Account Number | R04M02450000004 |
|---|---|
| Street Address | 550 COUNTY ROAD 439 |
| City | THORNDALE |
| State | TX |
| Zip | 76577 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Rural Home |
| Legal Description | AW0245 AW0245 - GUTHRIE, J.F. SUR., ACRES 124.733 |
| Legal Subdivision | GUTHRIE, J.F. SUR. |
| Legal Block | 3 |
| Jurisdiction | WILLIAMSON TX |
| Township / Civil Division | TAYLOR |
| Census Block Group | 3 |
| Census Block | 3056 |
| Census Tract | 20900 |
550 Co Rd 439, a rural home, is owned and occupied by two individuals who acquired it in June 2015.
Source: Williamson County records, as of September 11, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | PO BOX 860, THORNDALE, TX 76577-0860 |
| 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 | 2 Names on Deed |
|---|---|
| Last Sale | Jun 4, 2015 |
| Deed Sale | Jun 4, 2015 |
| Prior Sale | May 24, 2011 |
| Deed Document Number | 201546338 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | WILLIAMSON TX |
| Property Address | 550 COUNTY ROAD 439, THORNDALE, TX 76577 |
| Document Number | 0000061868 |
| Instrument Date | Jun 29, 2017 |
| Transaction Type | Mortgage |
| Record Updated | Jul 25, 2017 |
| Title Company | LONGHORN TITLE COMPANY INC, LONGHORN TITLE CO INC |
| Name | Verified Name |
|---|---|
| Relationship | Married Couple |
| Address | PO BOX 860 THORNDALE TX 765770860, THORNDALE, TX 76577-0860 |
| Document Number | 0000061868 |
|---|---|
| Date | Jul 6, 2017 |
| Instrument | 61868 |
| Name | ROUND TOP ST BK |
|---|---|
| Type | Bank |
| Address | ROUND ROCK, TX 78665 |
| Amount | Amount on Record |
|---|---|
| Term | 360 Months |
| Due | Jul 5, 2047 |
The 2025 property tax bill for 550 Co Rd 439 was $940 with a homeowner's exemption.
Source: Williamson County assessment roll, as of September 11, 2026
| Type | Name |
|---|---|
| State | Texas |
| County | Williamson County |
| Unified School District | Thorndale Independent School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $940.00 Homeowner's exemption Senior Citizen's exemption Additional exemption filed | $304,201 | $2,216,988 Land $1,871,619 Building $345,369 |
| 2023 | $2,133,900 Land $1,934,734 Building $199,166 | ||
| 2021 | $1,322.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 550 Co Rd 439 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 A, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 6 in force |
| Nearby Flood Claims | 3 (1991–2007) |
| Most Recent Claim | Jul 2007 · Severe Storms, Tornadoes, And 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.
Wildfire risk around 550 Co Rd 439 is moderate, ranking above 54% of the US, with a 0.1% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 54% of the US · lower than 68% of Texas |
|---|---|
| Wildfire Likelihood | 0.1% 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 | SOUTHWEST MILAM WSC serves 11,739 people · EPA ID TX1660015 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Mar 2025 |
| Lead | Under 1 ppb (2024–2026) 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 3 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Nextlink Fixed Wireless | 1,000 / 1,000 |
| Western Broadband Fixed Wireless | 200 / 40 |
| SOS Communications Fixed Wireless | 100 / 20 |
May also be available: T-Mobile.
5G (outdoors only) and 4G LTE
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