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4821 TERRAZA TRL, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed1,476 sqftBuilt 2016

Property at a Glance

This home is estimated between $307,747 and $574,044, with a best estimate of $514,228. That places the property below the R440515C - VIZCAYA median of $652,212, in a neighborhood that declined 0.6% over the past year.

Estimated Value Range

$307,747 $574,044
Best Estimate
$514,228
WCAD Value
$580,777
High Confidence

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

Based on 5 comparable properties in R440515C - VIZCAYA, this home's estimated market value is between $307,747 and $574,044. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

4813 TERRAZA TRL, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,958 sqft Built 2016
Raw Value $456,019
Adjusted Value $307,747

Adjusted -$148,272 for 482 sqft less living space. Net adjustment: -$148,272.

4833 TERRAZA TRL, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,445 sqft Built 2015
Raw Value $564,508
Adjusted Value $574,044

Adjusted +$9,536 for 31 sqft more living space. Net adjustment: +$9,536.

4805 TERRAZA TRL, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,727 sqft Built 2015
Raw Value $591,440
Adjusted Value $514,228

Adjusted -$77,212 for 251 sqft less living space. Net adjustment: -$77,212.

4829 TERRAZA TRL, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,139 sqft Built 2015
Raw Value $569,149
Adjusted Value $365,198

Adjusted -$203,951 for 663 sqft less living space. Net adjustment: -$203,951.

4825 TERRAZA TRL, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,552 sqft Built 2019
Raw Value $581,997
Adjusted Value $558,618

Adjusted -$23,379 for 76 sqft less living space. Net adjustment: -$23,379.

The Neighborhood

This home is valued 11.0% below the R440515C - VIZCAYA median of $652,212. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 0.6% over the past year.

R440515C - VIZCAYA

typical
585 Properties
$652,212 Median Value
-0.6% YoY Change
1% Have Pool
100% Have Garage
This Home
$580,777
Median
$652,212

This home is -11.0% below the subdivision median.

Tax Analysis

The estimated annual property tax is $10,450 across all districts. With a homestead exemption claimed, that drops to $9,092 — saving $1,358 per year. That's $758 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%$5,187
Round RockCity0.3720%$2,160
Williamson CountyCounty0.3694%$2,146
Austin Community Collegespecial0.1034%$601
Williamson County FM/RdCounty0.0443%$257
Upper Brushy Creek WCIDWater0.0170%$99
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$10,450

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $514,228 would pay approximately $3,210 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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