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510 SPLITROCK, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath1,322 sqftBuilt 1981

Property at a Glance

This home is estimated between $280,428 and $346,984, with a best estimate of $300,750. 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

$280,428 $346,984
Best Estimate
$300,750
WCAD Value
$266,672
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 $280,428 and $346,984. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

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 $300,750

Adjusted +$11,820 for 53 sqft more living space and -$1,607 for being older. Net adjustment: +$10,213.

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 $346,984

Adjusted +$4,237 for 19 sqft more living space and -$4,820 for being older. Net adjustment: -$583.

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 $338,865

Adjusted +$42,151 for 189 sqft more living space and +$3,213 for being newer. Net adjustment: +$45,364.

3 bed 2 bath 1,254 sqft Built 1984
Raw Value $270,083
Adjusted Value $280,428

Adjusted +$15,165 for 68 sqft more living space and -$4,820 for being older. Net adjustment: +$10,345.

2901 MONUMENT DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,212 sqft Built 1982
Raw Value $268,403
Adjusted Value $291,328

Adjusted +$24,532 for 110 sqft more living space and -$1,607 for being older. Net adjustment: +$22,925.

The Neighborhood

This home is valued 10.1% 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
$266,672
Median
$296,542

This home is -10.1% below the subdivision median.

Tax Analysis

The estimated annual property tax is $5,104 across all districts. With a homestead exemption claimed, that drops to $3,805 — saving $1,299 per year. That's $317 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%$2,382
Brushy Creek MUDMUD0.3868%$1,032
Williamson CountyCounty0.3694%$985
Austin Community Collegespecial0.1034%$276
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$267
Williamson County FM/RdCounty0.0443%$118
Upper Brushy Creek WCIDWater0.0170%$45
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9141%$5,104

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $300,750 would pay approximately $1,877 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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