Beta Williamson County, TX only — data and coverage are limited during early access.

1818 THOMPSON TRL, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed3 bath901 sqftBuilt 2004

Property at a Glance

This home is estimated between $316,860 and $424,381, with a best estimate of $316,860. That places the property below the R525503F - TURTLE CREEK VILLAGE median of $329,108, in a neighborhood that declined 7.5% over the past year.

Estimated Value Range

$316,860 $424,381
Best Estimate
$316,860
WCAD Value
$324,574
High Confidence

Based on 5 comparable properties(5 in the same subdivision)

Based on 5 comparable properties in R525503F - TURTLE CREEK VILLAGE, this home's estimated market value is between $316,860 and $424,381. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

1814 THOMPSON TRL, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 704 sqft Built 2004
Raw Value $371,969
Adjusted Value $424,381

Adjusted +$58,044 for 197 sqft more living space and -$5,632 for no garage. Net adjustment: +$52,412.

1741 THOMPSON TRL, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 931 sqft Built 2006
Raw Value $333,477
Adjusted Value $316,860

Adjusted -$8,839 for 30 sqft less living space and -$2,146 for being older and -$5,632 for no garage. Net adjustment: -$16,617.

1809 THOMPSON TRL, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 901 sqft Built 2003
Raw Value $324,044
Adjusted Value $319,485

Adjusted +$1,073 for being newer and -$5,632 for no garage. Net adjustment: -$4,559.

1769 THOMPSON TRL, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 931 sqft Built 2006
Raw Value $333,477
Adjusted Value $316,860

Adjusted -$8,839 for 30 sqft less living space and -$2,146 for being older and -$5,632 for no garage. Net adjustment: -$16,617.

1721 THOMPSON TRL, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 931 sqft Built 2006
Raw Value $333,477
Adjusted Value $316,860

Adjusted -$8,839 for 30 sqft less living space and -$2,146 for being older and -$5,632 for no garage. Net adjustment: -$16,617.

The Neighborhood

This home is valued 1.4% below the R525503F - TURTLE CREEK VILLAGE median of $329,108. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 7.5% over the past year.

R525503F - TURTLE CREEK VILLAGE

typical
425 Properties
$329,108 Median Value
-7.5% YoY Change
13% Have Pool
49% Have Garage
This Home
$324,574
Median
$329,108

This home is -1.4% below the subdivision median.

Tax Analysis

The estimated annual property tax is $5,840 across all districts. With a homestead exemption claimed, that drops to $4,530 — saving $1,310 per year. That's $378 per month a buyer should budget. The assessed value increased roughly in line with the neighborhood, so a tax protest is unlikely to yield significant savings.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$2,899
Round RockCity0.3720%$1,207
Williamson CountyCounty0.3694%$1,199
Austin Community Collegespecial0.1034%$336
Williamson County FM/RdCounty0.0443%$144
Upper Brushy Creek WCIDWater0.0170%$55
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$5,840

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $316,860 would pay approximately $1,978 per month (principal and interest only, excluding taxes and insurance).

Data sourced from Williamson County Appraisal District (WCAD), Texas Education Agency (TEA), and Federal Reserve Economic Data (FRED). Assessment values reflect the appraisal district's estimate, not market sale prices. Report generated 4/18/2026.

View full property details