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1 VALLEY TRL, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed3 bath2,227 sqftBuilt 1994

Property at a Glance

This home is estimated between $392,519 and $644,711, with a best estimate of $426,235. 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

$392,519 $644,711
Best Estimate
$426,235
WCAD Value
$968,675
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 $392,519 and $644,711 should be treated as a rough guide.

Comparable Properties (5)

3 VALLEY TRL, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 1,978 sqft Built 2013
Raw Value $564,335
Adjusted Value $644,711

Adjusted +$80,137 for 249 sqft more living space and +$239 for being newer. Net adjustment: +$80,376.

4 bed 3 bath 2,121 sqft Built 1995
Raw Value $392,108
Adjusted Value $426,235

Adjusted +$34,114 for 106 sqft more living space and +$13 for being newer. Net adjustment: +$34,127.

4 bed 2 bath 2,253 sqft Built 1994
Raw Value $404,415
Adjusted Value $396,047

Adjusted -$8,368 for 26 sqft less living space. Net adjustment: -$8,368.

4 bed 2 bath 2,253 sqft Built 1994
Raw Value $400,887
Adjusted Value $392,519

Adjusted -$8,368 for 26 sqft less living space. Net adjustment: -$8,368.

4 bed 4 bath 2,102 sqft Built 1985
Raw Value $417,617
Adjusted Value $457,733

Adjusted +$40,229 for 125 sqft more living space and -$113 for being older. Net adjustment: +$40,116.

The Neighborhood

This home is valued 31.9% above the R575583D - RR Rual Sub 122 & Gattis School Rd Area median of $734,399. With 213 homes in the subdivision, the property sits in the upper tier. The neighborhood appreciated 3.8% over the past year.

R575583D - RR Rual Sub 122 & Gattis School Rd Area

above average
213 Properties
$734,399 Median Value
+3.8% YoY Change
4% Have Pool
68% Have Garage
This Home
$968,675
Median
$734,399

This home is +31.9% above the subdivision median.

Tax Analysis

The estimated annual property tax is $14,082 across all districts. With a homestead exemption claimed, that drops to $12,661 — saving $1,421 per year. That's $1,055 per month a buyer should budget. The assessed value increased +15.6% vs the subdivision average of +3.8%. This above-average increase gives a protest opportunity score of 95 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$8,235
Williamson CountyCounty0.3694%$3,407
Austin Community Collegespecial0.1034%$953
Williamson County ESD #9 - Round RockESD0.0999%$921
Williamson County FM/RdCounty0.0443%$409
Upper Brushy Creek WCIDWater0.0170%$157
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.5272%$14,082
95 / 100

There may be a strong case to protest this appraisal.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $426,235 would pay approximately $2,661 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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