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

13 VALLEY VIEW DR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath2,041 sqftBuilt 1985

Property at a Glance

This home is estimated between $395,419 and $842,349, with a best estimate of $429,456. That places the property below the R575583D - RR Rual Sub 122 & Gattis School Rd Area median of $734,399, in a neighborhood that appreciated 3.8% over the past year.

Estimated Value Range

$395,419 $842,349
Best Estimate
$429,456
WCAD Value
$597,544
Low Confidence

Based on 5 comparable properties(1 in the same subdivision)

There are 5 comparable properties within range, but few are in R575583D - RR Rual Sub 122 & Gattis School Rd Area. The estimated range of $395,419 and $842,349 should be treated as a rough guide.

Comparable Properties (5)

4 COUNTRY DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,109 sqft Built 1986
Raw Value $611,541
Adjusted Value $589,669

Adjusted -$21,885 for 68 sqft less living space and +$13 for being newer. Net adjustment: -$21,872.

3 bed 2 bath 1,679 sqft Built 1984
Raw Value $304,596
Adjusted Value $421,087

Adjusted +$116,504 for 362 sqft more living space and -$13 for being older. Net adjustment: +$116,491.

3 bed 2 bath 2,100 sqft Built 2008
Raw Value $448,155
Adjusted Value $429,456

Adjusted -$18,988 for 59 sqft less living space and +$289 for being newer. Net adjustment: -$18,699.

3 bed 2 bath 2,166 sqft Built 2006
Raw Value $435,384
Adjusted Value $395,419

Adjusted -$40,229 for 125 sqft less living space and +$264 for being newer. Net adjustment: -$39,965.

4 bed 2 bath 1,783 sqft Built 1992
Raw Value $759,228
Adjusted Value $842,349

Adjusted +$83,033 for 258 sqft more living space and +$88 for being newer. Net adjustment: +$83,121.

The Neighborhood

This home is valued 18.6% below the R575583D - RR Rual Sub 122 & Gattis School Rd Area median of $734,399. That positions it competitively for buyers comparing within the neighborhood. The neighborhood appreciated 3.8% over the past year.

R575583D - RR Rual Sub 122 & Gattis School Rd Area

below average
213 Properties
$734,399 Median Value
+3.8% YoY Change
4% Have Pool
68% Have Garage
This Home
$597,544
Median
$734,399

This home is -18.6% below the subdivision median.

Tax Analysis

The estimated annual property tax is $9,028 across all districts. With a homestead exemption claimed, that drops to $7,669 — saving $1,359 per year. That's $639 per month a buyer should budget. The assessed value increased +11.2% vs the subdivision average of +3.8%. This above-average increase gives a protest opportunity score of 67 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$5,280
Williamson CountyCounty0.3694%$2,184
Austin Community Collegespecial0.1034%$611
Williamson County ESD #9 - Round RockESD0.0999%$591
Williamson County FM/RdCounty0.0443%$262
Upper Brushy Creek WCIDWater0.0170%$100
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.5272%$9,028
67 / 100

Moderate opportunity to protest.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $429,456 would pay approximately $2,681 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