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840 CENTERRA HILLS CIR, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed2 bath1,796 sqftBuilt 2019

Property at a Glance

This home is estimated between $253,081 and $553,748, with a best estimate of $503,253. 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

$253,081 $553,748
Best Estimate
$503,253
WCAD Value
$373,339
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 $253,081 and $553,748 should be treated as a rough guide.

Comparable Properties (5)

4 bed 2 bath 1,857 sqft Built 2015
Raw Value $549,582
Adjusted Value $486,955

Adjusted -$12,852 for 61 sqft less living space and -$49,775 for being older. Net adjustment: -$62,627.

4 bed 2 bath 1,843 sqft Built 2016
Raw Value $550,487
Adjusted Value $503,253

Adjusted -$9,902 for 47 sqft less living space and -$37,332 for being older. Net adjustment: -$47,234.

4 bed 3 bath 1,801 sqft Built 2016
Raw Value $550,160
Adjusted Value $511,775

Adjusted -$1,053 for 5 sqft less living space and -$37,332 for being older. Net adjustment: -$38,385.

4 bed 2 bath 1,558 sqft Built 2013
Raw Value $578,268
Adjusted Value $553,748

Adjusted +$50,143 for 238 sqft more living space and -$74,663 for being older. Net adjustment: -$24,520.

3 bed 2 bath 1,819 sqft Built 2011
Raw Value $357,478
Adjusted Value $253,081

Adjusted -$4,846 for 23 sqft less living space and -$99,551 for being older. Net adjustment: -$104,397.

The Neighborhood

This home is valued 3.6% 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
$373,339
Median
$387,362

This home is -3.6% below the subdivision median.

Tax Analysis

The estimated annual property tax is $6,717 across all districts. With a homestead exemption claimed, that drops to $5,398 — saving $1,319 per year. That's $450 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%$3,334
Round RockCity0.3720%$1,389
Williamson CountyCounty0.3694%$1,379
Austin Community Collegespecial0.1034%$386
Williamson County FM/RdCounty0.0443%$165
Upper Brushy Creek WCIDWater0.0170%$63
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$6,717

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $503,253 would pay approximately $3,141 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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