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2020 WESTVALLEY PL, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed3 bath2,416 sqftBuilt 2013

Property at a Glance

This home is estimated between $357,693 and $495,806, with a best estimate of $412,026. That places the property below the R420606C - TERAVISTA R5 median of $646,108, in a neighborhood that appreciated 2.5% over the past year.

Estimated Value Range

$357,693 $495,806
Best Estimate
$412,026
WCAD Value
$706,366
Low Confidence

Based on 5 comparable properties(0 in the same subdivision)

There are 5 comparable properties within range, but none are in R420606C - TERAVISTA R5. The estimated range of $357,693 and $495,806 should be treated as a rough guide.

Comparable Properties (5)

4 bed 3 bath 2,754 sqft Built 2017
Raw Value $619,037
Adjusted Value $495,806

Adjusted -$97,799 for 338 sqft less living space and -$25,432 for being older. Net adjustment: -$123,231.

4 bed 3 bath 2,928 sqft Built 2016
Raw Value $553,112
Adjusted Value $385,893

Adjusted -$148,145 for 512 sqft less living space and -$19,074 for being older. Net adjustment: -$167,219.

4 bed 3 bath 2,805 sqft Built 2022
Raw Value $527,470
Adjusted Value $357,693

Adjusted -$112,555 for 389 sqft less living space and -$57,222 for being older. Net adjustment: -$169,777.

4 bed 3 bath 2,828 sqft Built 2022
Raw Value $630,988
Adjusted Value $454,556

Adjusted -$119,210 for 412 sqft less living space and -$57,222 for being older. Net adjustment: -$176,432.

3 bed 2,282 sqft Built 2020
Raw Value $417,760
Adjusted Value $412,026

Adjusted +$38,772 for 134 sqft more living space and -$44,506 for being older. Net adjustment: -$5,734.

The Neighborhood

This home is valued 9.3% above the R420606C - TERAVISTA R5 median of $646,108. With 622 homes in the subdivision, the property sits in the upper tier. The neighborhood appreciated 2.5% over the past year.

R420606C - TERAVISTA R5

typical
622 Properties
$646,108 Median Value
+2.5% YoY Change
1% Have Pool
99% Have Garage
This Home
$706,366
Median
$646,108

This home is +9.3% above the subdivision median.

Tax Analysis

The estimated annual property tax is $13,370 across all districts. With a homestead exemption claimed, that drops to $11,989 — saving $1,381 per year. That's $999 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%$6,309
Williamson CountyCounty0.3694%$2,610
Williamson County MUD #11MUD0.3656%$2,582
Austin Community Collegespecial0.1034%$730
Williamson County ESD #9 - Round RockESD0.0999%$706
Williamson County FM/RdCounty0.0443%$313
Upper Brushy Creek WCIDWater0.0170%$120
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.8928%$13,370

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $412,026 would pay approximately $2,572 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 4/19/2026.

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