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405 STONEBRIDGE DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

5 bed3 bath1,700 sqftBuilt 1981

Property at a Glance

This home is estimated between $375,629 and $573,894, with a best estimate of $431,286. 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

$375,629 $573,894
Best Estimate
$431,286
WCAD Value
$469,220
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 $375,629 and $573,894. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

4 bed 2 bath 1,657 sqft Built 1978
Raw Value $559,484
Adjusted Value $573,894

Adjusted +$9,590 for 43 sqft more living space and +$4,820 for being newer. Net adjustment: +$14,410.

3609 CORNERSTONE, ROUND ROCK, TX 78681
0.00 mi 95% similar Same subdivision
3 bed 2 bath 1,269 sqft Built 1982
Raw Value $290,537
Adjusted Value $385,051

Adjusted +$96,121 for 431 sqft more living space and -$1,607 for being older. Net adjustment: +$94,514.

3115 FREEMONT ST, ROUND ROCK, TX 78681
0.00 mi 95% similar Same subdivision
3 bed 2 bath 1,303 sqft Built 1984
Raw Value $347,567
Adjusted Value $431,286

Adjusted +$88,539 for 397 sqft more living space and -$4,820 for being older. Net adjustment: +$83,719.

2901 MONUMENT DR, ROUND ROCK, TX 78681
0.00 mi 94% similar Same subdivision
3 bed 2 bath 1,212 sqft Built 1982
Raw Value $268,403
Adjusted Value $375,629

Adjusted +$108,833 for 488 sqft more living space and -$1,607 for being older. Net adjustment: +$107,226.

4 bed 2 bath 1,934 sqft Built 1978
Raw Value $484,482
Adjusted Value $437,115

Adjusted -$52,187 for 234 sqft less living space and +$4,820 for being newer. Net adjustment: -$47,367.

The Neighborhood

This home is valued 58.2% 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

outlier high
871 Properties
$296,542 Median Value
-14.6% YoY Change
2% Have Pool
94% Have Garage
This Home
$469,220
Median
$296,542

This home is +58.2% above the subdivision median.

Tax Analysis

The estimated annual property tax is $8,981 across all districts. With a homestead exemption claimed, that drops to $7,644 — saving $1,337 per year. That's $637 per month a buyer should budget. The assessed value increased -5.8% vs the subdivision average of -14.6%. This above-average increase gives a protest opportunity score of 44 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$4,191
Brushy Creek MUDMUD0.3868%$1,815
Williamson CountyCounty0.3694%$1,734
Austin Community Collegespecial0.1034%$485
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$469
Williamson County FM/RdCounty0.0443%$208
Upper Brushy Creek WCIDWater0.0170%$80
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9141%$8,981
44 / 100

Moderate opportunity to protest.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $431,286 would pay approximately $2,692 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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