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

1309 CASA BLANCA CV, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath1,649 sqftBuilt 2002

Property at a Glance

This home is estimated between $296,739 and $504,349, with a best estimate of $459,559. That places the property above the R402401F - Lakeside Sub Sec 1 median of $311,433, in a neighborhood that declined 11.3% over the past year.

Estimated Value Range

$296,739 $504,349
Best Estimate
$459,559
WCAD Value
$284,768
High Confidence

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

Based on 5 comparable properties in R402401F - Lakeside Sub Sec 1, this home's estimated market value is between $296,739 and $504,349. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

3405 NOCONA CV, ROUND ROCK, TX 78665
0.02 mi 100% similar Same subdivision
3 bed 2 bath 985 sqft Built 2004
Raw Value $316,108
Adjusted Value $504,349

Adjusted +$195,776 for 664 sqft more living space and -$7,535 for being older. Net adjustment: +$188,241.

1307 CASA BLANCA CV, ROUND ROCK, TX 78665
0.01 mi 100% similar Same subdivision
3 bed 2 bath 1,230 sqft Built 2006
Raw Value $351,089
Adjusted Value $459,559

Adjusted +$123,539 for 419 sqft more living space and -$15,069 for being older. Net adjustment: +$108,470.

3403 NOCONA CV, ROUND ROCK, TX 78665
0.02 mi 100% similar Same subdivision
3 bed 2 bath 1,586 sqft Built 2002
Raw Value $280,533
Adjusted Value $299,108

Adjusted +$18,575 for 63 sqft more living space. Net adjustment: +$18,575.

3508 SANDY BROOK DR, ROUND ROCK, TX 78665
0.02 mi 100% similar Same subdivision
3 bed 2 bath 1,586 sqft Built 2002
Raw Value $278,164
Adjusted Value $296,739

Adjusted +$18,575 for 63 sqft more living space. Net adjustment: +$18,575.

3407 NOCONA CV, ROUND ROCK, TX 78665
0.03 mi 100% similar Same subdivision
4 bed 2 bath 1,287 sqft Built 2002
Raw Value $377,401
Adjusted Value $484,134

Adjusted +$106,733 for 362 sqft more living space. Net adjustment: +$106,733.

The Neighborhood

This home is valued 8.6% below the R402401F - Lakeside Sub Sec 1 median of $311,433. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 11.3% over the past year.

R402401F - Lakeside Sub Sec 1

typical
135 Properties
$311,433 Median Value
-11.3% YoY Change
1% Have Pool
100% Have Garage
This Home
$284,768
Median
$311,433

This home is -8.6% below the subdivision median.

Tax Analysis

The estimated annual property tax is $5,124 across all districts. With a homestead exemption claimed, that drops to $3,821 — saving $1,303 per year. That's $318 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%$2,543
Round RockCity0.3720%$1,059
Williamson CountyCounty0.3694%$1,052
Austin Community Collegespecial0.1034%$294
Williamson County FM/RdCounty0.0443%$126
Upper Brushy Creek WCIDWater0.0170%$48
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$5,124

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $459,559 would pay approximately $2,869 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