Beta Williamson County, TX only — data and coverage are limited during early access.

4139 GRAND VISTA CIR, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

5 bed4 bath2,886 sqftBuilt 2013

Property at a Glance

This home is estimated between $527,622 and $890,103, with a best estimate of $581,713. 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

$527,622 $890,103
Best Estimate
$581,713
WCAD Value
$692,293
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 $527,622 and $890,103 should be treated as a rough guide.

Comparable Properties (5)

4 bed 3 bath 2,825 sqft Built 2013
Raw Value $540,858
Adjusted Value $558,508

Adjusted +$17,650 for 61 sqft more living space. Net adjustment: +$17,650.

4 bed 3 bath 2,936 sqft Built 2014
Raw Value $548,447
Adjusted Value $527,622

Adjusted -$14,467 for 50 sqft less living space and -$6,358 for being older. Net adjustment: -$20,825.

5 bed 4 bath 2,098 sqft Built 2015
Raw Value $674,815
Adjusted Value $890,103

Adjusted +$228,004 for 788 sqft more living space and -$12,716 for being older. Net adjustment: +$215,288.

4 bed 3 bath 2,650 sqft Built 2015
Raw Value $543,541
Adjusted Value $599,110

Adjusted +$68,285 for 236 sqft more living space and -$12,716 for being older. Net adjustment: +$55,569.

4 bed 3 bath 2,552 sqft Built 2016
Raw Value $504,146
Adjusted Value $581,713

Adjusted +$96,641 for 334 sqft more living space and -$19,074 for being older. Net adjustment: +$77,567.

The Neighborhood

This home is valued 7.1% 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
$692,293
Median
$646,108

This home is +7.1% above the subdivision median.

Tax Analysis

The estimated annual property tax is $13,255 across all districts. With a homestead exemption claimed, that drops to $11,877 — saving $1,378 per year. That's $990 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%$6,183
Williamson County MUD #10MUD0.3875%$2,683
Williamson CountyCounty0.3694%$2,558
Austin Community Collegespecial0.1034%$716
Williamson County ESD #9 - Round RockESD0.0999%$692
Williamson County FM/RdCounty0.0443%$307
Upper Brushy Creek WCIDWater0.0170%$118
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9147%$13,255

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $581,713 would pay approximately $3,631 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.

View full property details