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318 HIDDEN BROOK LN, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath1,710 sqftBuilt 2005

Property at a Glance

This home is estimated between $323,402 and $542,405, with a best estimate of $339,469. That places the property below the R417506E - TERAVISTA R4 median of $430,980, in a neighborhood that declined 4.6% over the past year.

Estimated Value Range

$323,402 $542,405
Best Estimate
$339,469
WCAD Value
$349,972
High Confidence

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

Based on 5 comparable properties in R417506E - TERAVISTA R4, this home's estimated market value is between $323,402 and $542,405. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

404 HIDDEN BROOK LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,085 sqft Built 2005
Raw Value $412,807
Adjusted Value $323,402

Adjusted -$89,405 for 375 sqft less living space. Net adjustment: -$89,405.

334 HIDDEN BROOK LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,848 sqft Built 2005
Raw Value $372,370
Adjusted Value $339,469

Adjusted -$32,901 for 138 sqft less living space. Net adjustment: -$32,901.

510 HIDDEN BROOK LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 2 bath 2,288 sqft Built 2005
Raw Value $496,994
Adjusted Value $359,192

Adjusted -$137,802 for 578 sqft less living space. Net adjustment: -$137,802.

502 HIDDEN BROOK LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,867 sqft Built 2005
Raw Value $376,713
Adjusted Value $339,282

Adjusted -$37,431 for 157 sqft less living space. Net adjustment: -$37,431.

331 HIDDEN BROOK LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,175 sqft Built 2005
Raw Value $414,854
Adjusted Value $542,405

Adjusted +$127,551 for 535 sqft more living space. Net adjustment: +$127,551.

The Neighborhood

This home is valued 18.8% below the R417506E - TERAVISTA R4 median of $430,980. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 4.6% over the past year.

R417506E - TERAVISTA R4

below average
1,632 Properties
$430,980 Median Value
-4.6% YoY Change
1% Have Pool
99% Have Garage
This Home
$349,972
Median
$430,980

This home is -18.8% below the subdivision median.

Tax Analysis

The estimated annual property tax is $6,701 across all districts. With a homestead exemption claimed, that drops to $5,386 — saving $1,315 per year. That's $449 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%$3,126
Williamson County MUD #10MUD0.3875%$1,356
Williamson CountyCounty0.3694%$1,293
Austin Community Collegespecial0.1034%$362
Williamson County ESD #9 - Round RockESD0.0999%$350
Williamson County FM/RdCounty0.0443%$155
Upper Brushy Creek WCIDWater0.0170%$59
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9147%$6,701

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $339,469 would pay approximately $2,119 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.

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