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

3436 LONGHORN TRL, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed2 bath1,516 sqftBuilt 2004

Property at a Glance

This home is estimated between $244,442 and $478,782, with a best estimate of $456,614. That places the property above the R401598G - Eagle Ridge - ALL SECTIONS median of $353,883, in a neighborhood that declined 8.1% over the past year.

Estimated Value Range

$244,442 $478,782
Best Estimate
$456,614
WCAD Value
$381,316
High Confidence

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

Based on 5 comparable properties in R401598G - Eagle Ridge - ALL SECTIONS, this home's estimated market value is between $244,442 and $478,782. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

3416 LONGHORN TRL, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,035 sqft Built 2004
Raw Value $370,558
Adjusted Value $478,782

Adjusted +$108,224 for 481 sqft more living space. Net adjustment: +$108,224.

3444 LONGHORN TRL, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,260 sqft Built 2004
Raw Value $399,015
Adjusted Value $456,614

Adjusted +$57,599 for 256 sqft more living space. Net adjustment: +$57,599.

3420 LONGHORN TRL, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,917 sqft Built 2004
Raw Value $334,666
Adjusted Value $244,442

Adjusted -$90,224 for 401 sqft less living space. Net adjustment: -$90,224.

3448 LONGHORN TRL, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,917 sqft Built 2004
Raw Value $334,666
Adjusted Value $244,442

Adjusted -$90,224 for 401 sqft less living space. Net adjustment: -$90,224.

3437 LONGHORN TRL, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,260 sqft Built 2004
Raw Value $405,796
Adjusted Value $463,395

Adjusted +$57,599 for 256 sqft more living space. Net adjustment: +$57,599.

The Neighborhood

This home is valued 7.8% above the R401598G - Eagle Ridge - ALL SECTIONS median of $353,883. With 749 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 8.1% over the past year.

R401598G - Eagle Ridge - ALL SECTIONS

typical
749 Properties
$353,883 Median Value
-8.1% YoY Change
0% Have Pool
100% Have Garage
This Home
$381,316
Median
$353,883

This home is +7.8% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,861 across all districts. With a homestead exemption claimed, that drops to $5,540 — saving $1,321 per year. That's $462 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%$3,406
Round RockCity0.3720%$1,418
Williamson CountyCounty0.3694%$1,409
Austin Community Collegespecial0.1034%$394
Williamson County FM/RdCounty0.0443%$169
Upper Brushy Creek WCIDWater0.0170%$65
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$6,861

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $456,614 would pay approximately $2,850 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