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

4301 CONTRAIL LN, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed2 bath2,039 sqftBuilt 2024

Property at a Glance

This home is estimated between $443,042 and $493,852, with a best estimate of $484,076. That places the property below the G507521B - UNI HEIGHTS median of $490,141, in a neighborhood that appreciated 51.6% over the past year.

Estimated Value Range

$443,042 $493,852
Best Estimate
$484,076
WCAD Value
$444,863
High Confidence

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

Based on 5 comparable properties in G507521B - UNI HEIGHTS, this home's estimated market value is between $443,042 and $493,852. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

4344 CONTRAIL LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,717 sqft Built 2024
Raw Value $399,158
Adjusted Value $493,852

Adjusted +$94,694 for 322 sqft more living space. Net adjustment: +$94,694.

4312 CONTRAIL LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,772 sqft Built 2024
Raw Value $405,557
Adjusted Value $484,076

Adjusted +$78,519 for 267 sqft more living space. Net adjustment: +$78,519.

4329 CONTRAIL LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
5 bed 3 bath 2,051 sqft Built 2024
Raw Value $446,571
Adjusted Value $443,042

Adjusted -$3,529 for 12 sqft less living space. Net adjustment: -$3,529.

4320 CONTRAIL LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,803 sqft Built 2024
Raw Value $412,917
Adjusted Value $482,320

Adjusted +$69,403 for 236 sqft more living space. Net adjustment: +$69,403.

4304 CONTRAIL LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,771 sqft Built 2023
Raw Value $408,417
Adjusted Value $489,192

Adjusted +$78,813 for 268 sqft more living space and +$1,962 for being newer. Net adjustment: +$80,775.

The Neighborhood

This home is valued 9.2% below the G507521B - UNI HEIGHTS median of $490,141. That positions it competitively for buyers comparing within the neighborhood. The neighborhood appreciated 51.6% over the past year.

G507521B - UNI HEIGHTS

typical
173 Properties
$490,141 Median Value
+51.6% YoY Change
0% Have Pool
99% Have Garage
This Home
$444,863
Median
$490,141

This home is -9.2% below the subdivision median.

Tax Analysis

The estimated annual property tax is $8,245 across all districts. With a homestead exemption claimed, that drops to $6,692 — saving $1,553 per year. That's $558 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
Georgetown ISDSchool1.0506%$4,674
Round RockCity0.3720%$1,655
Williamson CountyCounty0.3694%$1,644
Williamson County FM/RdCounty0.0443%$197
Upper Brushy Creek WCIDWater0.0170%$76
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.8534%$8,245

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $484,076 would pay approximately $3,022 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