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13 HIDDEN ACRES DR, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

2 bed1 bath1,540 sqftBuilt 1977

Property at a Glance

This home is estimated between $312,701 and $442,243, with a best estimate of $365,636. That places the property below the R427578G - Hidden Acres & Sec 2 median of $412,870, in a neighborhood that declined 4.2% over the past year.

Estimated Value Range

$312,701 $442,243
Best Estimate
$365,636
WCAD Value
$358,239
High Confidence

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

Based on 5 comparable properties in R427578G - Hidden Acres & Sec 2, this home's estimated market value is between $312,701 and $442,243. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

16 HIDDEN ACRES DR, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,485 sqft Built 1977
Raw Value $308,754
Adjusted Value $320,451

Adjusted +$11,697 for 55 sqft more living space. Net adjustment: +$11,697.

11 HIDDEN ACRES DR, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,477 sqft Built 1977
Raw Value $299,303
Adjusted Value $312,701

Adjusted +$13,398 for 63 sqft more living space. Net adjustment: +$13,398.

12 HIDDEN ACRES DR, ROUND ROCK, TX 78665
0.00 mi 96% similar Same subdivision
4 bed 2 bath 1,411 sqft Built 1981
Raw Value $412,870
Adjusted Value $392,025

Adjusted +$27,434 for 129 sqft more living space and -$48,279 for being older. Net adjustment: -$20,845.

18 HIDDEN ACRES DR, ROUND ROCK, TX 78665
0.00 mi 95% similar Same subdivision
4 bed 2 bath 1,828 sqft Built 1977
Raw Value $426,884
Adjusted Value $365,636

Adjusted -$61,248 for 288 sqft less living space. Net adjustment: -$61,248.

21 HIDDEN ACRES DR, ROUND ROCK, TX 78665
0.00 mi 87% similar Same subdivision
4 bed 2 bath 1,017 sqft Built 1979
Raw Value $355,158
Adjusted Value $442,243

Adjusted +$111,225 for 523 sqft more living space and -$24,140 for being older. Net adjustment: +$87,085.

The Neighborhood

This home is valued 13.2% below the R427578G - Hidden Acres & Sec 2 median of $412,870. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 4.2% over the past year.

R427578G - Hidden Acres & Sec 2

typical
19 Properties
$412,870 Median Value
-4.2% YoY Change
26% Have Pool
84% Have Garage
This Home
$358,239
Median
$412,870

This home is -13.2% below the subdivision median.

Tax Analysis

The estimated annual property tax is $5,471 across all districts. With a homestead exemption claimed, that drops to $4,154 — saving $1,317 per year. That's $346 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%$3,199
Williamson CountyCounty0.3694%$1,324
Austin Community Collegespecial0.1034%$370
Williamson County ESD #9 - Round RockESD0.0999%$358
Williamson County FM/RdCounty0.0443%$159
Upper Brushy Creek WCIDWater0.0170%$61
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.5272%$5,471

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $365,636 would pay approximately $2,282 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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