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2003 WESTVALLEY PL, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath2,674 sqftBuilt 2008

Property at a Glance

This home is estimated between $454,887 and $623,027, with a best estimate of $520,510. 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

$454,887 $623,027
Best Estimate
$520,510
WCAD Value
$538,642
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 $454,887 and $623,027 should be treated as a rough guide.

Comparable Properties (5)

3 bed 2 bath 2,148 sqft Built 2005
Raw Value $409,777
Adjusted Value $581,047

Adjusted +$152,196 for 526 sqft more living space and +$19,074 for being newer. Net adjustment: +$171,270.

3 bed 2 bath 2,328 sqft Built 2017
Raw Value $470,578
Adjusted Value $513,469

Adjusted +$100,113 for 346 sqft more living space and -$57,222 for being older. Net adjustment: +$42,891.

3 bed 2 bath 3,112 sqft Built 2018
Raw Value $813,340
Adjusted Value $623,027

Adjusted -$126,733 for 438 sqft less living space and -$63,580 for being older. Net adjustment: -$190,313.

3 bed 2 bath 2,132 sqft Built 2015
Raw Value $408,191
Adjusted Value $520,510

Adjusted +$156,825 for 542 sqft more living space and -$44,506 for being older. Net adjustment: +$112,319.

3 bed 2,282 sqft Built 2020
Raw Value $417,760
Adjusted Value $454,887

Adjusted +$113,423 for 392 sqft more living space and -$76,296 for being older. Net adjustment: +$37,127.

The Neighborhood

This home is valued 16.6% below the R420606C - TERAVISTA R5 median of $646,108. That positions it competitively for buyers comparing within the neighborhood. The neighborhood appreciated 2.5% over the past year.

R420606C - TERAVISTA R5

below average
622 Properties
$646,108 Median Value
+2.5% YoY Change
1% Have Pool
99% Have Garage
This Home
$538,642
Median
$646,108

This home is -16.6% below the subdivision median.

Tax Analysis

The estimated annual property tax is $10,195 across all districts. With a homestead exemption claimed, that drops to $8,846 — saving $1,349 per year. That's $737 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%$4,811
Williamson CountyCounty0.3694%$1,990
Williamson County MUD #11MUD0.3656%$1,969
Austin Community Collegespecial0.1034%$557
Williamson County ESD #9 - Round RockESD0.0999%$538
Williamson County FM/RdCounty0.0443%$239
Upper Brushy Creek WCIDWater0.0170%$92
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.8928%$10,195

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $520,510 would pay approximately $3,249 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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