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4000 CARGILL DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath1,284 sqftBuilt 2002

Property at a Glance

This home is estimated between $148,431 and $550,680, with a best estimate of $339,958. That places the property below the R222592G - CAT HOLLOW ALL SECTIONS R4 median of $451,685, in a neighborhood that declined 6.9% over the past year.

Estimated Value Range

$148,431 $550,680
Best Estimate
$339,958
WCAD Value
$375,392
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 $148,431 and $550,680. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

16709 DORMAN DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,584 sqft Built 1995
Raw Value $381,657
Adjusted Value $352,935

Adjusted -$80,981 for 300 sqft less living space and +$52,259 for being newer. Net adjustment: -$28,722.

16829 LUCKENWALD DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,585 sqft Built 1997
Raw Value $383,881
Adjusted Value $339,958

Adjusted -$81,251 for 301 sqft less living space and +$37,328 for being newer. Net adjustment: -$43,923.

16716 TOMCAT DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,675 sqft Built 1995
Raw Value $367,941
Adjusted Value $314,654

Adjusted -$105,546 for 391 sqft less living space and +$52,259 for being newer. Net adjustment: -$53,287.

102 NORTH FIELD ST, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 940 sqft Built 2002
Raw Value $457,821
Adjusted Value $550,680

Adjusted +$92,859 for 344 sqft more living space. Net adjustment: +$92,859.

3 bed 1,232 sqft Built 2011
Raw Value $141,391
Adjusted Value $148,431

Adjusted +$14,037 for 52 sqft more living space and -$67,190 for being older and +$60,193 for having a garage. Net adjustment: +$7,040.

The Neighborhood

This home is valued 16.9% below the R222592G - CAT HOLLOW ALL SECTIONS R4 median of $451,685. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 6.9% over the past year.

R222592G - CAT HOLLOW ALL SECTIONS R4

below average
1,233 Properties
$451,685 Median Value
-6.9% YoY Change
1% Have Pool
100% Have Garage
This Home
$375,392
Median
$451,685

This home is -16.9% below the subdivision median.

Tax Analysis

The estimated annual property tax is $7,185 across all districts. With a homestead exemption claimed, that drops to $5,866 — saving $1,319 per year. That's $489 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%$3,353
Brushy Creek MUDMUD0.3868%$1,452
Williamson CountyCounty0.3694%$1,387
Austin Community Collegespecial0.1034%$388
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$375
Williamson County FM/RdCounty0.0443%$166
Upper Brushy Creek WCIDWater0.0170%$64
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9141%$7,185

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $339,958 would pay approximately $2,122 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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