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504 SPLITROCK, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath1,335 sqftBuilt 1981

Property at a Glance

This home is estimated between $288,930 and $355,486, with a best estimate of $309,251. 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

$288,930 $355,486
Best Estimate
$309,251
WCAD Value
$301,865
Medium Confidence

Based on 5 comparable properties(4 in the same subdivision)

Based on 5 comparable properties (4 in the same subdivision, 1 nearby), the estimated range is $288,930 and $355,486. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

3115 FREEMONT ST, ROUND ROCK, TX 78681
0.00 mi 98% similar Same subdivision
3 bed 2 bath 1,303 sqft Built 1984
Raw Value $347,567
Adjusted Value $355,486

Adjusted +$7,137 for 32 sqft more living space and -$4,820 for being older and +$5,602 for having a pool. Net adjustment: +$7,919.

3609 CORNERSTONE, ROUND ROCK, TX 78681
0.00 mi 98% similar Same subdivision
3 bed 2 bath 1,269 sqft Built 1982
Raw Value $290,537
Adjusted Value $309,251

Adjusted +$14,719 for 66 sqft more living space and -$1,607 for being older and +$5,602 for having a pool. Net adjustment: +$18,714.

2901 MONUMENT DR, ROUND ROCK, TX 78681
0.00 mi 96% similar Same subdivision
3 bed 2 bath 1,212 sqft Built 1982
Raw Value $268,403
Adjusted Value $299,829

Adjusted +$27,431 for 123 sqft more living space and -$1,607 for being older and +$5,602 for having a pool. Net adjustment: +$31,426.

4001 HILLSIDE DR, ROUND ROCK, TX 78681
0.00 mi 94% similar Same subdivision
3 bed 2 bath 1,133 sqft Built 1979
Raw Value $293,501
Adjusted Value $347,366

Adjusted +$45,050 for 202 sqft more living space and +$3,213 for being newer and +$5,602 for having a pool. Net adjustment: +$53,865.

3 bed 2 bath 1,254 sqft Built 1984
Raw Value $270,083
Adjusted Value $288,930

Adjusted +$18,065 for 81 sqft more living space and -$4,820 for being older and +$5,602 for having a pool. Net adjustment: +$18,847.

The Neighborhood

This home is valued 1.8% 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
$301,865
Median
$296,542

This home is +1.8% above the subdivision median.

Tax Analysis

The estimated annual property tax is $5,778 across all districts. With a homestead exemption claimed, that drops to $4,472 — saving $1,306 per year. That's $373 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%$2,696
Brushy Creek MUDMUD0.3868%$1,168
Williamson CountyCounty0.3694%$1,115
Austin Community Collegespecial0.1034%$312
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$302
Williamson County FM/RdCounty0.0443%$134
Upper Brushy Creek WCIDWater0.0170%$51
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9141%$5,778

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $309,251 would pay approximately $1,930 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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