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

4340 CONTRAIL LN, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

5 bed4 bath1,614 sqftBuilt 2024

Property at a Glance

This home is estimated between $496,278 and $537,585, with a best estimate of $532,788. That places the property above the G507521B - UNI HEIGHTS median of $490,141, in a neighborhood that appreciated 51.6% over the past year.

Estimated Value Range

$496,278 $537,585
Best Estimate
$532,788
WCAD Value
$530,681
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 $496,278 and $537,585. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

4321 CONTRAIL LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
5 bed 4 bath 1,599 sqft Built 2024
Raw Value $528,377
Adjusted Value $532,788

Adjusted +$4,411 for 15 sqft more living space. Net adjustment: +$4,411.

4333 CONTRAIL LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
5 bed 4 bath 1,599 sqft Built 2024
Raw Value $528,872
Adjusted Value $533,283

Adjusted +$4,411 for 15 sqft more living space. Net adjustment: +$4,411.

4341 CONTRAIL LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
5 bed 4 bath 1,579 sqft Built 2024
Raw Value $491,670
Adjusted Value $501,963

Adjusted +$10,293 for 35 sqft more living space. Net adjustment: +$10,293.

4332 CONTRAIL LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
5 bed 4 bath 1,579 sqft Built 2024
Raw Value $485,985
Adjusted Value $496,278

Adjusted +$10,293 for 35 sqft more living space. Net adjustment: +$10,293.

4337 CONTRAIL LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
6 bed 4 bath 1,579 sqft Built 2024
Raw Value $527,292
Adjusted Value $537,585

Adjusted +$10,293 for 35 sqft more living space. Net adjustment: +$10,293.

The Neighborhood

This home is valued 8.3% above the G507521B - UNI HEIGHTS median of $490,141. With 173 homes in the subdivision, the property sits in the upper tier. 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
$530,681
Median
$490,141

This home is +8.3% above the subdivision median.

Tax Analysis

The estimated annual property tax is $9,836 across all districts. With a homestead exemption claimed, that drops to $8,267 — saving $1,569 per year. That's $689 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%$5,575
Round RockCity0.3720%$1,974
Williamson CountyCounty0.3694%$1,961
Williamson County FM/RdCounty0.0443%$235
Upper Brushy Creek WCIDWater0.0170%$90
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.8534%$9,836

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $532,788 would pay approximately $3,326 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