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

1821 MATHERS MILL TRL, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath1,383 sqftBuilt 2015

Property at a Glance

This home is estimated between $296,383 and $447,441, with a best estimate of $346,386. That places the property above the R525503F - TURTLE CREEK VILLAGE median of $329,108, in a neighborhood that declined 7.5% over the past year.

Estimated Value Range

$296,383 $447,441
Best Estimate
$346,386
WCAD Value
$321,568
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 $296,383 and $447,441. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

1848 MATHERS MILL TRL, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,501 sqft Built 2014
Raw Value $330,078
Adjusted Value $296,383

Adjusted -$34,768 for 118 sqft less living space and +$1,073 for being newer. Net adjustment: -$33,695.

1804 MATHERS MILL TRL, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,328 sqft Built 2014
Raw Value $328,988
Adjusted Value $346,266

Adjusted +$16,205 for 55 sqft more living space and +$1,073 for being newer. Net adjustment: +$17,278.

1820 MATHERS MILL TRL, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,020 sqft Built 2014
Raw Value $339,413
Adjusted Value $447,441

Adjusted +$106,955 for 363 sqft more living space and +$1,073 for being newer. Net adjustment: +$108,028.

1852 MATHERS MILL TRL, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 1,328 sqft Built 2014
Raw Value $329,108
Adjusted Value $346,386

Adjusted +$16,205 for 55 sqft more living space and +$1,073 for being newer. Net adjustment: +$17,278.

1825 MATHERS MILL TRL, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,302 sqft Built 2015
Raw Value $327,160
Adjusted Value $351,026

Adjusted +$23,866 for 81 sqft more living space. Net adjustment: +$23,866.

The Neighborhood

This home is valued 2.3% 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
$321,568
Median
$329,108

This home is -2.3% below the subdivision median.

Tax Analysis

The estimated annual property tax is $5,786 across all districts. With a homestead exemption claimed, that drops to $4,476 — saving $1,310 per year. That's $373 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%$2,872
Round RockCity0.3720%$1,196
Williamson CountyCounty0.3694%$1,188
Austin Community Collegespecial0.1034%$333
Williamson County FM/RdCounty0.0443%$143
Upper Brushy Creek WCIDWater0.0170%$55
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$5,786

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $346,386 would pay approximately $2,162 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