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307 WHETSTONE, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath2,260 sqftBuilt 1980

Property at a Glance

This home is estimated between $498,914 and $568,642, with a best estimate of $508,336. 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

$498,914 $568,642
Best Estimate
$508,336
WCAD Value
$355,810
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 $498,914 and $568,642. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

3 bed 2 bath 2,044 sqft Built 1981
Raw Value $455,252
Adjusted Value $501,817

Adjusted +$48,172 for 216 sqft more living space and -$1,607 for being older. Net adjustment: +$46,565.

3609 CORNERSTONE, ROUND ROCK, TX 78681
0.00 mi 99% similar Same subdivision
3 bed 2 bath 1,269 sqft Built 1982
Raw Value $290,537
Adjusted Value $508,336

Adjusted +$221,012 for 991 sqft more living space and -$3,213 for being older. Net adjustment: +$217,799.

3115 FREEMONT ST, ROUND ROCK, TX 78681
0.00 mi 99% similar Same subdivision
3 bed 2 bath 1,303 sqft Built 1984
Raw Value $347,567
Adjusted Value $554,570

Adjusted +$213,430 for 957 sqft more living space and -$6,427 for being older. Net adjustment: +$207,003.

3 bed 2 bath 1,971 sqft Built 1975
Raw Value $496,156
Adjusted Value $568,642

Adjusted +$64,453 for 289 sqft more living space and +$8,033 for being newer. Net adjustment: +$72,486.

2901 MONUMENT DR, ROUND ROCK, TX 78681
0.00 mi 98% similar Same subdivision
3 bed 2 bath 1,212 sqft Built 1982
Raw Value $268,403
Adjusted Value $498,914

Adjusted +$233,724 for 1,048 sqft more living space and -$3,213 for being older. Net adjustment: +$230,511.

The Neighborhood

This home is valued 20.0% 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

above average
871 Properties
$296,542 Median Value
-14.6% YoY Change
2% Have Pool
94% Have Garage
This Home
$355,810
Median
$296,542

This home is +20.0% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,811 across all districts. With a homestead exemption claimed, that drops to $5,495 — saving $1,316 per year. That's $458 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%$3,178
Brushy Creek MUDMUD0.3868%$1,376
Williamson CountyCounty0.3694%$1,315
Austin Community Collegespecial0.1034%$368
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$356
Williamson County FM/RdCounty0.0443%$158
Upper Brushy Creek WCIDWater0.0170%$60
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9141%$6,811

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $508,336 would pay approximately $3,173 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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