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

1 LONGHORN DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed3 bath4,033 sqftBuilt 1980

Property at a Glance

This home is estimated between $1,082,177 and $1,619,832, with a best estimate of $1,579,485. That places the property above the L580D75C - LEANDER SAM BASS AREA median of $974,644, in a neighborhood that appreciated 7.9% over the past year.

Estimated Value Range

$1,082,177 $1,619,832
Best Estimate
$1,579,485
WCAD Value
$1,259,440
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 $1,082,177 and $1,619,832. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

3 LONGHORN DR, ROUND ROCK, TX 78681
0.00 mi 99% similar Same subdivision
3 bed 2 bath 2,898 sqft Built 1978
Raw Value $1,085,153
Adjusted Value $1,619,832

Adjusted +$451,066 for 1,135 sqft more living space and +$22,464 for being newer and +$61,149 for having a garage. Net adjustment: +$534,679.

2 LONGHORN DR, ROUND ROCK, TX 78681
0.00 mi 97% similar Same subdivision
4 bed 2,763 sqft Built 1978
Raw Value $1,052,304
Adjusted Value $1,579,485

Adjusted +$504,717 for 1,270 sqft more living space and +$22,464 for being newer. Net adjustment: +$527,181.

4 LONGHORN DR, ROUND ROCK, TX 78681
0.00 mi 92% similar Same subdivision
3 bed 2 bath 2,602 sqft Built 1995
Raw Value $739,691
Adjusted Value $1,139,914

Adjusted +$568,701 for 1,431 sqft more living space and -$168,478 for being older. Net adjustment: +$400,223.

3 bed 2 bath 2,439 sqft Built 1979
Raw Value $376,316
Adjusted Value $1,082,177

Adjusted +$633,480 for 1,594 sqft more living space and +$11,232 for being newer and +$61,149 for having a garage. Net adjustment: +$705,861.

12 LONGHORN DR, ROUND ROCK, TX 78681
0.00 mi 81% similar Same subdivision
4 bed 2 bath 1,378 sqft Built 1985
Raw Value $589,116
Adjusted Value $1,588,095

Adjusted +$1,055,138 for 2,655 sqft more living space and -$56,159 for being older. Net adjustment: +$998,979.

The Neighborhood

This home is valued 29.2% above the L580D75C - LEANDER SAM BASS AREA median of $974,644. With 397 homes in the subdivision, the property sits in the upper tier. The neighborhood appreciated 7.9% over the past year.

L580D75C - LEANDER SAM BASS AREA

above average
397 Properties
$974,644 Median Value
+7.9% YoY Change
6% Have Pool
81% Have Garage
This Home
$1,259,440
Median
$974,644

This home is +29.2% above the subdivision median.

Tax Analysis

The estimated annual property tax is $21,676 across all districts. With a homestead exemption claimed, that drops to $19,922 — saving $1,754 per year. That's $1,660 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
Leander ISDSchool1.0869%$13,689
Williamson CountyCounty0.3694%$4,653
Austin Community Collegespecial0.1034%$1,302
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$1,259
Williamson County FM/RdCounty0.0443%$558
Upper Brushy Creek WCIDWater0.0170%$214
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7211%$21,676

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $1,579,485 would pay approximately $9,859 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