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

3400 CAMPANELLA DR, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath1,002 sqftBuilt 2002

Property at a Glance

This home is estimated between $223,658 and $390,033, with a best estimate of $337,256. That places the property below the R454400F - Ryan's Crossing Sec 1 Thru 6 median of $339,919, in a neighborhood that declined 9.3% over the past year.

Estimated Value Range

$223,658 $390,033
Best Estimate
$337,256
WCAD Value
$345,062
High Confidence

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

Based on 5 comparable properties in R454400F - Ryan's Crossing Sec 1 Thru 6, this home's estimated market value is between $223,658 and $390,033. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

1504 CAMPANELLA CV, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,484 sqft Built 2002
Raw Value $313,476
Adjusted Value $223,658

Adjusted -$89,818 for 482 sqft less living space. Net adjustment: -$89,818.

3404 CAMPANELLA DR, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,001 sqft Built 2002
Raw Value $338,831
Adjusted Value $339,017

Adjusted +$186 for 1 sqft more living space. Net adjustment: +$186.

1500 CAMPANELLA CV, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,021 sqft Built 2002
Raw Value $393,574
Adjusted Value $390,033

Adjusted -$3,541 for 19 sqft less living space. Net adjustment: -$3,541.

3409 CAMPANELLA DR, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,058 sqft Built 2002
Raw Value $347,691
Adjusted Value $337,256

Adjusted -$10,435 for 56 sqft less living space. Net adjustment: -$10,435.

1508 CAMPANELLA CV, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,461 sqft Built 2003
Raw Value $313,167
Adjusted Value $228,587

Adjusted -$85,532 for 459 sqft less living space and +$952 for being newer. Net adjustment: -$84,580.

The Neighborhood

This home is valued 1.5% above the R454400F - Ryan's Crossing Sec 1 Thru 6 median of $339,919. With 567 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 9.3% over the past year.

R454400F - Ryan's Crossing Sec 1 Thru 6

typical
567 Properties
$339,919 Median Value
-9.3% YoY Change
1% Have Pool
100% Have Garage
This Home
$345,062
Median
$339,919

This home is +1.5% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,209 across all districts. With a homestead exemption claimed, that drops to $4,895 — saving $1,314 per year. That's $408 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%$3,082
Round RockCity0.3720%$1,284
Williamson CountyCounty0.3694%$1,275
Austin Community Collegespecial0.1034%$357
Williamson County FM/RdCounty0.0443%$153
Upper Brushy Creek WCIDWater0.0170%$59
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$6,209

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $337,256 would pay approximately $2,105 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