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1999 WESTVALLEY PL, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath2,598 sqftBuilt 2012

Property at a Glance

This home is estimated between $458,329 and $626,469, with a best estimate of $523,952. 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

$458,329 $626,469
Best Estimate
$523,952
WCAD Value
$561,360
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 $458,329 and $626,469 should be treated as a rough guide.

Comparable Properties (5)

3 bed 2 bath 2,328 sqft Built 2017
Raw Value $470,578
Adjusted Value $516,911

Adjusted +$78,123 for 270 sqft more living space and -$31,790 for being older. Net adjustment: +$46,333.

3 bed 2 bath 2,132 sqft Built 2015
Raw Value $408,191
Adjusted Value $523,952

Adjusted +$134,835 for 466 sqft more living space and -$19,074 for being older. Net adjustment: +$115,761.

3 bed 2 bath 3,112 sqft Built 2018
Raw Value $813,340
Adjusted Value $626,469

Adjusted -$148,723 for 514 sqft less living space and -$38,148 for being older. Net adjustment: -$186,871.

3 bed 2,282 sqft Built 2020
Raw Value $417,760
Adjusted Value $458,329

Adjusted +$91,433 for 316 sqft more living space and -$50,864 for being older. Net adjustment: +$40,569.

3 bed 2 bath 2,148 sqft Built 2005
Raw Value $409,777
Adjusted Value $584,488

Adjusted +$130,205 for 450 sqft more living space and +$44,506 for being newer. Net adjustment: +$174,711.

The Neighborhood

This home is valued 13.1% 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

typical
622 Properties
$646,108 Median Value
+2.5% YoY Change
1% Have Pool
99% Have Garage
This Home
$561,360
Median
$646,108

This home is -13.1% below the subdivision median.

Tax Analysis

The estimated annual property tax is $10,625 across all districts. With a homestead exemption claimed, that drops to $9,271 — saving $1,354 per year. That's $773 per month a buyer should budget. The assessed value increased +6.3% vs the subdivision average of +2.5%. This above-average increase gives a protest opportunity score of 34 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$5,014
Williamson CountyCounty0.3694%$2,074
Williamson County MUD #11MUD0.3656%$2,052
Austin Community Collegespecial0.1034%$580
Williamson County ESD #9 - Round RockESD0.0999%$561
Williamson County FM/RdCounty0.0443%$249
Upper Brushy Creek WCIDWater0.0170%$95
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.8928%$10,625
34 / 100

Some opportunity.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $523,952 would pay approximately $3,270 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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