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

4329 CONTRAIL LN, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

5 bed3 bath2,051 sqftBuilt 2024

Property at a Glance

This home is estimated between $448,392 and $661,796, with a best estimate of $659,194. 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

$448,392 $661,796
Best Estimate
$659,194
WCAD Value
$446,571
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 $448,392 and $661,796. 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 $661,301

Adjusted +$132,924 for 452 sqft more living space. Net adjustment: +$132,924.

4301 CONTRAIL LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 2 bath 2,039 sqft Built 2024
Raw Value $444,863
Adjusted Value $448,392

Adjusted +$3,529 for 12 sqft more living space. Net adjustment: +$3,529.

4340 CONTRAIL LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
5 bed 4 bath 1,614 sqft Built 2024
Raw Value $530,681
Adjusted Value $659,194

Adjusted +$128,513 for 437 sqft more living space. Net adjustment: +$128,513.

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 $661,796

Adjusted +$132,924 for 452 sqft more living space. Net adjustment: +$132,924.

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 $630,476

Adjusted +$138,806 for 472 sqft more living space. Net adjustment: +$138,806.

The Neighborhood

This home is valued 8.9% 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
$446,571
Median
$490,141

This home is -8.9% below the subdivision median.

Tax Analysis

The estimated annual property tax is $8,277 across all districts. With a homestead exemption claimed, that drops to $6,723 — saving $1,554 per year. That's $560 per month a buyer should budget. The assessed value increased +95.7% vs the subdivision average of +51.6%. This above-average increase gives a protest opportunity score of 100 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Georgetown ISDSchool1.0506%$4,692
Round RockCity0.3720%$1,661
Williamson CountyCounty0.3694%$1,650
Williamson County FM/RdCounty0.0443%$198
Upper Brushy Creek WCIDWater0.0170%$76
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.8534%$8,277
100 / 100

There may be a strong case to protest this appraisal.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $659,194 would pay approximately $4,115 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