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921 CENTERRA HILLS CIR, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath1,947 sqftBuilt 2019

Property at a Glance

This home is estimated between $284,895 and $535,066, with a best estimate of $346,309. That places the property below the R468517C - SUMMIT AT ROUND ROCK median of $387,362, in a neighborhood that declined 8.1% over the past year.

Estimated Value Range

$284,895 $535,066
Best Estimate
$346,309
WCAD Value
$387,617
Low Confidence

Based on 5 comparable properties(0 in the same subdivision)

There are 5 comparable properties within range, but none are in R468517C - SUMMIT AT ROUND ROCK. The estimated range of $284,895 and $535,066 should be treated as a rough guide.

Comparable Properties (5)

3 bed 2 bath 1,819 sqft Built 2011
Raw Value $357,478
Adjusted Value $284,895

Adjusted +$26,968 for 128 sqft more living space and -$99,551 for being older. Net adjustment: -$72,583.

3 bed 2 bath 1,841 sqft Built 2010
Raw Value $398,585
Adjusted Value $308,923

Adjusted +$22,333 for 106 sqft more living space and -$111,995 for being older. Net adjustment: -$89,662.

4 bed 2 bath 1,843 sqft Built 2016
Raw Value $550,487
Adjusted Value $535,066

Adjusted +$21,911 for 104 sqft more living space and -$37,332 for being older. Net adjustment: -$15,421.

4 bed 2 bath 1,857 sqft Built 2015
Raw Value $549,582
Adjusted Value $518,769

Adjusted +$18,962 for 90 sqft more living space and -$49,775 for being older. Net adjustment: -$30,813.

3 bed 2 bath 2,331 sqft Built 2014
Raw Value $489,431
Adjusted Value $346,309

Adjusted -$80,903 for 384 sqft less living space and -$62,219 for being older. Net adjustment: -$143,122.

The Neighborhood

This home is in line with the R468517C - SUMMIT AT ROUND ROCK median of $387,362. Note that values in this subdivision declined 8.1% over the past year.

R468517C - SUMMIT AT ROUND ROCK

typical
65 Properties
$387,362 Median Value
-8.1% YoY Change
0% Have Pool
100% Have Garage
This Home
$387,617
Median
$387,362

This home is +0.1% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,974 across all districts. With a homestead exemption claimed, that drops to $5,652 — saving $1,322 per year. That's $471 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%$3,462
Round RockCity0.3720%$1,442
Williamson CountyCounty0.3694%$1,432
Austin Community Collegespecial0.1034%$401
Williamson County FM/RdCounty0.0443%$172
Upper Brushy Creek WCIDWater0.0170%$66
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$6,974

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $346,309 would pay approximately $2,162 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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