Beta Williamson County, TX only — data and coverage are limited during early access.

104 TOWER DR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed1 bath1,147 sqftBuilt 1979

Property at a Glance

This home is estimated between $204,022 and $306,676, with a best estimate of $234,599. That places the property below the R605477I - South Park, Southern Terrace, Cushing PA median of $311,935, in a neighborhood that appreciated 0.3% over the past year.

Estimated Value Range

$204,022 $306,676
Best Estimate
$234,599
WCAD Value
$264,506
High Confidence

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

Based on 5 comparable properties in R605477I - South Park, Southern Terrace, Cushing PA, this home's estimated market value is between $204,022 and $306,676. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

200 TOWER DR, ROUND ROCK, TX 78664
0.00 mi 96% similar Same subdivision
3 bed 2 bath 1,607 sqft Built 1974
Raw Value $370,454
Adjusted Value $289,006

Adjusted -$94,330 for 460 sqft less living space and +$12,882 for being newer. Net adjustment: -$81,448.

105 TOWER DR, ROUND ROCK, TX 78664
0.00 mi 95% similar Same subdivision
3 bed 2 bath 1,602 sqft Built 1973
Raw Value $281,868
Adjusted Value $204,022

Adjusted -$93,304 for 455 sqft less living space and +$15,458 for being newer. Net adjustment: -$77,846.

111 FAIRLANE DR, ROUND ROCK, TX 78664
0.05 mi 95% similar Same subdivision
3 bed 2 bath 1,827 sqft Built 1979
Raw Value $374,043
Adjusted Value $234,599

Adjusted -$139,444 for 680 sqft less living space. Net adjustment: -$139,444.

113 FAIRLANE DR, ROUND ROCK, TX 78664
0.05 mi 94% similar Same subdivision
3 bed 2 bath 1,535 sqft Built 1968
Raw Value $357,901
Adjusted Value $306,676

Adjusted -$79,565 for 388 sqft less living space and +$28,340 for being newer. Net adjustment: -$51,225.

103 TOWER DR, ROUND ROCK, TX 78664
0.00 mi 94% similar Same subdivision
3 bed 2 bath 1,732 sqft Built 1975
Raw Value $329,190
Adjusted Value $219,532

Adjusted -$119,963 for 585 sqft less living space and +$10,305 for being newer. Net adjustment: -$109,658.

The Neighborhood

This home is valued 15.2% below the R605477I - South Park, Southern Terrace, Cushing PA median of $311,935. That positions it competitively for buyers comparing within the neighborhood. The neighborhood appreciated 0.3% over the past year.

R605477I - South Park, Southern Terrace, Cushing PA

below average
125 Properties
$311,935 Median Value
+0.3% YoY Change
2% Have Pool
61% Have Garage
This Home
$264,506
Median
$311,935

This home is -15.2% below the subdivision median.

Tax Analysis

The estimated annual property tax is $4,759 across all districts. With a homestead exemption claimed, that drops to $3,460 — saving $1,299 per year. That's $288 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%$2,362
Round RockCity0.3720%$984
Williamson CountyCounty0.3694%$977
Austin Community Collegespecial0.1034%$273
Williamson County FM/RdCounty0.0443%$117
Upper Brushy Creek WCIDWater0.0170%$45
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$4,759

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $234,599 would pay approximately $1,464 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.

View full property details