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4136 GRAND VISTA CIR, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed3 bath2,135 sqftBuilt 2012

Property at a Glance

This home is estimated between $388,384 and $685,658, with a best estimate of $516,798. That places the property above the R417506E - TERAVISTA R4 median of $430,980, in a neighborhood that declined 4.6% over the past year.

Estimated Value Range

$388,384 $685,658
Best Estimate
$516,798
WCAD Value
$705,495
Low Confidence

Based on 5 comparable properties(2 in the same subdivision)

There are 5 comparable properties within range, but few are in R417506E - TERAVISTA R4. The estimated range of $388,384 and $685,658 should be treated as a rough guide.

Comparable Properties (5)

4524 HERITAGE WELL LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,130 sqft Built 2007
Raw Value $391,287
Adjusted Value $388,384

Adjusted +$1,192 for 5 sqft more living space and -$4,095 for being older. Net adjustment: -$2,903.

4 bed 3 bath 2,365 sqft Built 2014
Raw Value $493,216
Adjusted Value $440,019

Adjusted -$54,835 for 230 sqft less living space and +$1,638 for being newer. Net adjustment: -$53,197.

4 bed 3 bath 2,092 sqft Built 2016
Raw Value $503,270
Adjusted Value $516,798

Adjusted +$10,252 for 43 sqft more living space and +$3,276 for being newer. Net adjustment: +$13,528.

4125 GRAND VISTA CIR, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 2 bath 2,087 sqft Built 2005
Raw Value $679,947
Adjusted Value $685,658

Adjusted +$11,444 for 48 sqft more living space and -$5,733 for being older. Net adjustment: +$5,711.

4 bed 3 bath 2,107 sqft Built 2015
Raw Value $616,272
Adjusted Value $625,405

Adjusted +$6,676 for 28 sqft more living space and +$2,457 for being newer. Net adjustment: +$9,133.

The Neighborhood

This home is valued 63.7% above the R417506E - TERAVISTA R4 median of $430,980. With 1,632 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 4.6% over the past year.

R417506E - TERAVISTA R4

outlier high
1,632 Properties
$430,980 Median Value
-4.6% YoY Change
1% Have Pool
99% Have Garage
This Home
$705,495
Median
$430,980

This home is +63.7% above the subdivision median.

Tax Analysis

The estimated annual property tax is $12,469 across all districts. With a homestead exemption claimed, that drops to $11,099 — saving $1,370 per year. That's $925 per month a buyer should budget. The assessed value increased +8.5% vs the subdivision average of -4.6%. This above-average increase gives a protest opportunity score of 70 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$5,816
Williamson County MUD #10MUD0.3875%$2,524
Williamson CountyCounty0.3694%$2,406
Austin Community Collegespecial0.1034%$673
Williamson County ESD #9 - Round RockESD0.0999%$651
Williamson County FM/RdCounty0.0443%$289
Upper Brushy Creek WCIDWater0.0170%$111
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9147%$12,469
70 / 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 $516,798 would pay approximately $3,226 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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