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821 CENTERRA HILLS CIR, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath1,776 sqftBuilt 2019

Property at a Glance

This home is estimated between $248,868 and $499,039, with a best estimate of $440,375. That places the property above the R468517C - SUMMIT AT ROUND ROCK median of $387,362, in a neighborhood that declined 8.1% over the past year.

Estimated Value Range

$248,868 $499,039
Best Estimate
$440,375
WCAD Value
$373,969
Low Confidence

Based on 5 comparable properties(1 in the same subdivision)

There are 5 comparable properties within range, but few are in R468517C - SUMMIT AT ROUND ROCK. The estimated range of $248,868 and $499,039 should be treated as a rough guide.

Comparable Properties (5)

948 CENTERRA HILLS CIR, ROUND ROCK, TX 78665
0.00 mi 97% similar Same subdivision
4 bed 3 bath 2,006 sqft Built 2019
Raw Value $488,833
Adjusted Value $440,375

Adjusted -$48,458 for 230 sqft less living space. Net adjustment: -$48,458.

3 bed 2 bath 1,819 sqft Built 2011
Raw Value $357,478
Adjusted Value $248,868

Adjusted -$9,059 for 43 sqft less living space and -$99,551 for being older. Net adjustment: -$108,610.

3 bed 2 bath 1,841 sqft Built 2010
Raw Value $398,585
Adjusted Value $272,895

Adjusted -$13,695 for 65 sqft less living space and -$111,995 for being older. Net adjustment: -$125,690.

4 bed 2 bath 1,843 sqft Built 2016
Raw Value $550,487
Adjusted Value $499,039

Adjusted -$14,116 for 67 sqft less living space and -$37,332 for being older. Net adjustment: -$51,448.

4 bed 2 bath 1,857 sqft Built 2015
Raw Value $549,582
Adjusted Value $482,742

Adjusted -$17,065 for 81 sqft less living space and -$49,775 for being older. Net adjustment: -$66,840.

The Neighborhood

This home is valued 3.5% below the R468517C - SUMMIT AT ROUND ROCK median of $387,362. That positions it competitively for buyers comparing within the neighborhood. 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
$373,969
Median
$387,362

This home is -3.5% below the subdivision median.

Tax Analysis

The estimated annual property tax is $6,729 across all districts. With a homestead exemption claimed, that drops to $5,409 — saving $1,320 per year. That's $451 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%$3,340
Round RockCity0.3720%$1,391
Williamson CountyCounty0.3694%$1,382
Austin Community Collegespecial0.1034%$387
Williamson County FM/RdCounty0.0443%$166
Upper Brushy Creek WCIDWater0.0170%$64
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$6,729

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $440,375 would pay approximately $2,749 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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