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3618 LONGHORN TRL, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed3 bath2,285 sqftBuilt 2006

Property at a Glance

This home is estimated between $367,810 and $617,568, with a best estimate of $525,927. 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

$367,810 $617,568
Best Estimate
$525,927
WCAD Value
$398,306
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 $367,810 and $617,568. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

3624 LONGHORN TRL, ROUND ROCK, TX 78665
0.01 mi 100% similar Same subdivision
4 bed 2 bath 1,731 sqft Built 2005
Raw Value $398,087
Adjusted Value $525,927

Adjusted +$124,649 for 554 sqft more living space and +$3,191 for being newer. Net adjustment: +$127,840.

3614 LONGHORN TRL, ROUND ROCK, TX 78665
0.02 mi 100% similar Same subdivision
4 bed 2 bath 1,806 sqft Built 2006
Raw Value $477,220
Adjusted Value $584,994

Adjusted +$107,774 for 479 sqft more living space. Net adjustment: +$107,774.

3610 LONGHORN TRL, ROUND ROCK, TX 78665
0.03 mi 100% similar Same subdivision
4 bed 2 bath 2,384 sqft Built 2007
Raw Value $393,276
Adjusted Value $367,810

Adjusted -$22,275 for 99 sqft less living space and -$3,191 for being older. Net adjustment: -$25,466.

3628 LONGHORN TRL, ROUND ROCK, TX 78665
0.03 mi 100% similar Same subdivision
4 bed 3 bath 1,390 sqft Built 2006
Raw Value $416,195
Adjusted Value $617,568

Adjusted +$201,373 for 895 sqft more living space. Net adjustment: +$201,373.

3606 LONGHORN TRL, ROUND ROCK, TX 78665
0.04 mi 100% similar Same subdivision
4 bed 2 bath 1,773 sqft Built 2006
Raw Value $407,353
Adjusted Value $522,552

Adjusted +$115,199 for 512 sqft more living space. Net adjustment: +$115,199.

The Neighborhood

This home is valued 12.6% 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
$398,306
Median
$353,883

This home is +12.6% above the subdivision median.

Tax Analysis

The estimated annual property tax is $7,167 across all districts. With a homestead exemption claimed, that drops to $5,843 — saving $1,324 per year. That's $487 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%$3,557
Round RockCity0.3720%$1,482
Williamson CountyCounty0.3694%$1,472
Austin Community Collegespecial0.1034%$412
Williamson County FM/RdCounty0.0443%$177
Upper Brushy Creek WCIDWater0.0170%$68
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$7,167

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $525,927 would pay approximately $3,283 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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