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

404 HIDDEN BROOK LN, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath2,085 sqftBuilt 2005

Property at a Glance

This home is estimated between $373,379 and $448,596, with a best estimate of $428,687. 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

$373,379 $448,596
Best Estimate
$428,687
WCAD Value
$412,807
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 $373,379 and $448,596. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

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 $428,874

Adjusted +$56,504 for 237 sqft more living space. Net adjustment: +$56,504.

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 $448,596

Adjusted -$48,398 for 203 sqft less living space. Net adjustment: -$48,398.

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 $428,687

Adjusted +$51,974 for 218 sqft more living space. Net adjustment: +$51,974.

326 HIDDEN BROOK LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,077 sqft Built 2005
Raw Value $371,472
Adjusted Value $373,379

Adjusted +$1,907 for 8 sqft more living space. Net adjustment: +$1,907.

322 HIDDEN BROOK LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,877 sqft Built 2005
Raw Value $373,908
Adjusted Value $423,498

Adjusted +$49,590 for 208 sqft more living space. Net adjustment: +$49,590.

The Neighborhood

This home is valued 4.2% 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

typical
1,632 Properties
$430,980 Median Value
-4.6% YoY Change
1% Have Pool
99% Have Garage
This Home
$412,807
Median
$430,980

This home is -4.2% below the subdivision median.

Tax Analysis

The estimated annual property tax is $7,904 across all districts. With a homestead exemption claimed, that drops to $6,577 — saving $1,327 per year. That's $548 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%$3,687
Williamson County MUD #10MUD0.3875%$1,600
Williamson CountyCounty0.3694%$1,525
Austin Community Collegespecial0.1034%$427
Williamson County ESD #9 - Round RockESD0.0999%$412
Williamson County FM/RdCounty0.0443%$183
Upper Brushy Creek WCIDWater0.0170%$70
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9147%$7,904

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $428,687 would pay approximately $2,676 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