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16 HIDDEN ACRES DR, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath1,485 sqftBuilt 1977

Property at a Glance

This home is estimated between $301,004 and $430,546, with a best estimate of $353,939. 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

$301,004 $430,546
Best Estimate
$353,939
WCAD Value
$308,754
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 $301,004 and $430,546. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

13 HIDDEN ACRES DR, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
2 bed 1 bath 1,540 sqft Built 1977
Raw Value $358,239
Adjusted Value $346,542

Adjusted -$11,697 for 55 sqft less living space. Net adjustment: -$11,697.

18 HIDDEN ACRES DR, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,828 sqft Built 1977
Raw Value $426,884
Adjusted Value $353,939

Adjusted -$72,945 for 343 sqft less living space. Net adjustment: -$72,945.

12 HIDDEN ACRES DR, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,411 sqft Built 1981
Raw Value $412,870
Adjusted Value $380,328

Adjusted +$15,737 for 74 sqft more living space and -$48,279 for being older. Net adjustment: -$32,542.

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 $301,004

Adjusted +$1,701 for 8 sqft more living space. Net adjustment: +$1,701.

21 HIDDEN ACRES DR, ROUND ROCK, TX 78665
0.00 mi 99% similar Same subdivision
4 bed 2 bath 1,017 sqft Built 1979
Raw Value $355,158
Adjusted Value $430,546

Adjusted +$99,528 for 468 sqft more living space and -$24,140 for being older. Net adjustment: +$75,388.

The Neighborhood

This home is valued 25.2% 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

below average
19 Properties
$412,870 Median Value
-4.2% YoY Change
26% Have Pool
84% Have Garage
This Home
$308,754
Median
$412,870

This home is -25.2% below the subdivision median.

Tax Analysis

The estimated annual property tax is $4,715 across all districts. With a homestead exemption claimed, that drops to $3,408 — saving $1,307 per year. That's $284 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%$2,757
Williamson CountyCounty0.3694%$1,141
Austin Community Collegespecial0.1034%$319
Williamson County ESD #9 - Round RockESD0.0999%$308
Williamson County FM/RdCounty0.0443%$137
Upper Brushy Creek WCIDWater0.0170%$52
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.5272%$4,715

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $353,939 would pay approximately $2,209 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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