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3707 CORNERSTONE, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath1,412 sqftBuilt 1980

Property at a Glance

This home is estimated between $319,216 and $365,449, with a best estimate of $357,330. That places the property above the R210480H - Brushy Creek median of $296,542, in a neighborhood that declined 14.6% over the past year.

Estimated Value Range

$319,216 $365,449
Best Estimate
$357,330
WCAD Value
$321,666
Medium Confidence

Based on 5 comparable properties(3 in the same subdivision)

Based on 5 comparable properties (3 in the same subdivision, 2 nearby), the estimated range is $319,216 and $365,449. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

3 bed 2 bath 1,550 sqft Built 1984
Raw Value $366,931
Adjusted Value $329,727

Adjusted -$30,777 for 138 sqft less living space and -$6,427 for being older. Net adjustment: -$37,204.

3609 CORNERSTONE, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,269 sqft Built 1982
Raw Value $290,537
Adjusted Value $319,216

Adjusted +$31,892 for 143 sqft more living space and -$3,213 for being older. Net adjustment: +$28,679.

3115 FREEMONT ST, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,303 sqft Built 1984
Raw Value $347,567
Adjusted Value $365,449

Adjusted +$24,309 for 109 sqft more living space and -$6,427 for being older. Net adjustment: +$17,882.

4001 HILLSIDE DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,133 sqft Built 1979
Raw Value $293,501
Adjusted Value $357,330

Adjusted +$62,222 for 279 sqft more living space and +$1,607 for being newer. Net adjustment: +$63,829.

3 bed 2 bath 1,542 sqft Built 1975
Raw Value $383,067
Adjusted Value $362,107

Adjusted -$28,993 for 130 sqft less living space and +$8,033 for being newer. Net adjustment: -$20,960.

The Neighborhood

This home is valued 8.5% above the R210480H - Brushy Creek median of $296,542. With 871 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 14.6% over the past year.

R210480H - Brushy Creek

typical
871 Properties
$296,542 Median Value
-14.6% YoY Change
2% Have Pool
94% Have Garage
This Home
$321,666
Median
$296,542

This home is +8.5% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,157 across all districts. With a homestead exemption claimed, that drops to $4,847 — saving $1,310 per year. That's $404 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%$2,873
Brushy Creek MUDMUD0.3868%$1,244
Williamson CountyCounty0.3694%$1,188
Austin Community Collegespecial0.1034%$333
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$322
Williamson County FM/RdCounty0.0443%$143
Upper Brushy Creek WCIDWater0.0170%$55
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9141%$6,157

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $357,330 would pay approximately $2,230 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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