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139 JACKRABBIT RUN, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath1,518 sqftBuilt 1985

Property at a Glance

This home is estimated between $524,290 and $656,208, with a best estimate of $556,936. That places the property below the R575583D - RR Rual Sub 122 & Gattis School Rd Area median of $734,399, in a neighborhood that appreciated 3.8% over the past year.

Estimated Value Range

$524,290 $656,208
Best Estimate
$556,936
WCAD Value
$788,210
High Confidence

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

Based on 5 comparable properties in R575583D - RR Rual Sub 122 & Gattis School Rd Area, this home's estimated market value is between $524,290 and $656,208. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

135 JACKRABBIT RUN, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,172 sqft Built 1986
Raw Value $734,757
Adjusted Value $524,290

Adjusted -$210,480 for 654 sqft less living space and +$13 for being newer. Net adjustment: -$210,467.

102 JACKRABBIT RUN, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,097 sqft Built 1996
Raw Value $736,319
Adjusted Value $550,115

Adjusted -$186,342 for 579 sqft less living space and +$138 for being newer. Net adjustment: -$186,204.

142 JACKRABBIT RUN, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,003 sqft Built 1984
Raw Value $713,039
Adjusted Value $556,936

Adjusted -$156,090 for 485 sqft less living space and -$13 for being older. Net adjustment: -$156,103.

130 JACKRABBIT RUN, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,931 sqft Built 1990
Raw Value $703,653
Adjusted Value $570,798

Adjusted -$132,918 for 413 sqft less living space and +$63 for being newer. Net adjustment: -$132,855.

119 JACKRABBIT RUN, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,841 sqft Built 1985
Raw Value $760,161
Adjusted Value $656,208

Adjusted -$103,953 for 323 sqft less living space. Net adjustment: -$103,953.

The Neighborhood

This home is valued 7.3% above the R575583D - RR Rual Sub 122 & Gattis School Rd Area median of $734,399. With 213 homes in the subdivision, the property sits in the upper tier. The neighborhood appreciated 3.8% over the past year.

R575583D - RR Rual Sub 122 & Gattis School Rd Area

typical
213 Properties
$734,399 Median Value
+3.8% YoY Change
4% Have Pool
68% Have Garage
This Home
$788,210
Median
$734,399

This home is +7.3% above the subdivision median.

Tax Analysis

The estimated annual property tax is $12,037 across all districts. With a homestead exemption claimed, that drops to $10,641 — saving $1,396 per year. That's $887 per month a buyer should budget. The assessed value increased +15.7% vs the subdivision average of +3.8%. This above-average increase gives a protest opportunity score of 95 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$7,040
Williamson CountyCounty0.3694%$2,912
Austin Community Collegespecial0.1034%$815
Williamson County ESD #9 - Round RockESD0.0999%$788
Williamson County FM/RdCounty0.0443%$349
Upper Brushy Creek WCIDWater0.0170%$134
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.5272%$12,037
95 / 100

There may be a strong case to protest this appraisal.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $556,936 would pay approximately $3,476 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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