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4128 GRAND VISTA CIR, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed2 bath2,214 sqftBuilt 2004

Property at a Glance

This home is estimated between $299,479 and $710,336, with a best estimate of $396,518. 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

$299,479 $710,336
Best Estimate
$396,518
WCAD Value
$560,946
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 $299,479 and $710,336 should be treated as a rough guide.

Comparable Properties (5)

4 bed 2 bath 2,087 sqft Built 2005
Raw Value $679,947
Adjusted Value $710,336

Adjusted +$36,747 for 127 sqft more living space and -$6,358 for being older. Net adjustment: +$30,389.

3 bed 2 bath 2,130 sqft Built 2007
Raw Value $391,287
Adjusted Value $396,518

Adjusted +$24,305 for 84 sqft more living space and -$19,074 for being older. Net adjustment: +$5,231.

3 bed 2 bath 2,331 sqft Built 2014
Raw Value $489,431
Adjusted Value $391,998

Adjusted -$33,853 for 117 sqft less living space and -$63,580 for being older. Net adjustment: -$97,433.

4 bed 2 bath 1,857 sqft Built 2015
Raw Value $549,582
Adjusted Value $582,940

Adjusted +$103,296 for 357 sqft more living space and -$69,938 for being older. Net adjustment: +$33,358.

3 bed 2 bath 2,659 sqft Built 2006
Raw Value $440,954
Adjusted Value $299,479

Adjusted -$128,759 for 445 sqft less living space and -$12,716 for being older. Net adjustment: -$141,475.

The Neighborhood

This home is valued 13.2% 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
$560,946
Median
$646,108

This home is -13.2% below the subdivision median.

Tax Analysis

The estimated annual property tax is $10,740 across all districts. With a homestead exemption claimed, that drops to $9,386 — saving $1,354 per year. That's $782 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%$5,010
Williamson County MUD #10MUD0.3875%$2,174
Williamson CountyCounty0.3694%$2,072
Austin Community Collegespecial0.1034%$580
Williamson County ESD #9 - Round RockESD0.0999%$560
Williamson County FM/RdCounty0.0443%$249
Upper Brushy Creek WCIDWater0.0170%$95
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9147%$10,740

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $396,518 would pay approximately $2,475 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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