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138 JACKRABBIT RUN, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

4 bed2 bath2,149 sqftBuilt 1995

Property at a Glance

This home is estimated between $636,927 and $759,889, with a best estimate of $727,242. 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

$636,927 $759,889
Best Estimate
$727,242
WCAD Value
$597,414
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 $636,927 and $759,889. 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 $727,242

Adjusted -$7,402 for 23 sqft less living space and -$113 for being older. Net adjustment: -$7,515.

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 $753,067

Adjusted +$16,735 for 52 sqft more living space and +$13 for being newer. Net adjustment: +$16,748.

122 JACKRABBIT RUN, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,518 sqft Built 1988
Raw Value $794,433
Adjusted Value $675,588

Adjusted -$118,757 for 369 sqft less living space and -$88 for being older. Net adjustment: -$118,845.

101 JACKRABBIT RUN, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,263 sqft Built 1994
Raw Value $673,629
Adjusted Value $636,927

Adjusted -$36,689 for 114 sqft less living space and -$13 for being older. Net adjustment: -$36,702.

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 $759,889

Adjusted +$46,988 for 146 sqft more living space and -$138 for being older. Net adjustment: +$46,850.

The Neighborhood

This home is valued 18.7% below the R575583D - RR Rual Sub 122 & Gattis School Rd Area median of $734,399. That positions it competitively for buyers comparing within the neighborhood. The neighborhood appreciated 3.8% over the past year.

R575583D - RR Rual Sub 122 & Gattis School Rd Area

below average
213 Properties
$734,399 Median Value
+3.8% YoY Change
4% Have Pool
68% Have Garage
This Home
$597,414
Median
$734,399

This home is -18.7% below the subdivision median.

Tax Analysis

The estimated annual property tax is $9,124 across all districts. With a homestead exemption claimed, that drops to $7,763 — saving $1,361 per year. That's $647 per month a buyer should budget. The assessed value increased +10.2% vs the subdivision average of +3.8%. This above-average increase gives a protest opportunity score of 62 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$5,336
Williamson CountyCounty0.3694%$2,207
Austin Community Collegespecial0.1034%$618
Williamson County ESD #9 - Round RockESD0.0999%$597
Williamson County FM/RdCounty0.0443%$265
Upper Brushy Creek WCIDWater0.0170%$102
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.5272%$9,124
62 / 100

Moderate opportunity to protest.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $727,242 would pay approximately $4,539 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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