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300 SPLITROCK, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath1,248 sqftBuilt 1983

Property at a Glance

This home is estimated between $267,138 and $333,694, with a best estimate of $287,461. That places the property below the R210480H - Brushy Creek median of $296,542, in a neighborhood that declined 14.6% over the past year.

Estimated Value Range

$267,138 $333,694
Best Estimate
$287,461
WCAD Value
$300,526
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 $267,138 and $333,694. 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 $287,461

Adjusted -$4,683 for 21 sqft less living space and +$1,607 for being newer. Net adjustment: -$3,076.

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 $333,694

Adjusted -$12,266 for 55 sqft less living space and -$1,607 for being older. Net adjustment: -$13,873.

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 $325,575

Adjusted +$25,647 for 115 sqft more living space and +$6,427 for being newer. Net adjustment: +$32,074.

3 bed 2 bath 1,254 sqft Built 1984
Raw Value $270,083
Adjusted Value $267,138

Adjusted -$1,338 for 6 sqft less living space and -$1,607 for being older. Net adjustment: -$2,945.

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 $278,039

Adjusted +$8,029 for 36 sqft more living space and +$1,607 for being newer. Net adjustment: +$9,636.

The Neighborhood

This home is valued 1.3% 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
$300,526
Median
$296,542

This home is +1.3% above the subdivision median.

Tax Analysis

The estimated annual property tax is $5,752 across all districts. With a homestead exemption claimed, that drops to $4,447 — saving $1,305 per year. That's $371 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%$2,684
Brushy Creek MUDMUD0.3868%$1,163
Williamson CountyCounty0.3694%$1,110
Austin Community Collegespecial0.1034%$311
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$301
Williamson County FM/RdCounty0.0443%$133
Upper Brushy Creek WCIDWater0.0170%$51
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9141%$5,752

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $287,461 would pay approximately $1,794 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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