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508 STONEBRIDGE, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath1,550 sqftBuilt 1969

Property at a Glance

This home is estimated between $332,318 and $378,553, with a best estimate of $370,433. 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

$332,318 $378,553
Best Estimate
$370,433
WCAD Value
$286,200
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 $332,318 and $378,553. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

3 bed 2 bath 1,626 sqft Built 1977
Raw Value $398,588
Adjusted Value $368,786

Adjusted -$16,949 for 76 sqft less living space and -$12,853 for being older. Net adjustment: -$29,802.

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 $332,318

Adjusted +$62,668 for 281 sqft more living space and -$20,887 for being older. Net adjustment: +$41,781.

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 $378,553

Adjusted +$55,086 for 247 sqft more living space and -$24,100 for being older. Net adjustment: +$30,986.

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 $370,433

Adjusted +$92,999 for 417 sqft more living space and -$16,067 for being older. Net adjustment: +$76,932.

3 bed 2 bath 1,542 sqft Built 1975
Raw Value $383,067
Adjusted Value $375,211

Adjusted +$1,784 for 8 sqft more living space and -$9,640 for being older. Net adjustment: -$7,856.

The Neighborhood

This home is valued 3.5% below the R210480H - Brushy Creek median of $296,542. That positions it competitively for buyers comparing within the neighborhood. 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
$286,200
Median
$296,542

This home is -3.5% below the subdivision median.

Tax Analysis

The estimated annual property tax is $5,478 across all districts. With a homestead exemption claimed, that drops to $4,175 — saving $1,303 per year. That's $348 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%$2,556
Brushy Creek MUDMUD0.3868%$1,107
Williamson CountyCounty0.3694%$1,057
Austin Community Collegespecial0.1034%$296
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$286
Williamson County FM/RdCounty0.0443%$127
Upper Brushy Creek WCIDWater0.0170%$49
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9141%$5,478

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $370,433 would pay approximately $2,312 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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