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

1603 NEW CV, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath1,444 sqftBuilt 1977

Property at a Glance

This home is estimated between $276,044 and $549,603, with a best estimate of $486,847. That places the property above the R464476H - MESA PARK ALL SECTIONS median of $279,680, in a neighborhood that declined 6.4% over the past year.

Estimated Value Range

$276,044 $549,603
Best Estimate
$486,847
WCAD Value
$341,200
Low Confidence

Based on 5 comparable properties(2 in the same subdivision)

There are 5 comparable properties within range, but few are in R464476H - MESA PARK ALL SECTIONS. The estimated range of $276,044 and $549,603 should be treated as a rough guide.

Comparable Properties (5)

1605 NEW CV, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,397 sqft Built 1977
Raw Value $313,061
Adjusted Value $322,753

Adjusted +$9,692 for 47 sqft more living space. Net adjustment: +$9,692.

1604 NEW CV, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,478 sqft Built 1977
Raw Value $283,055
Adjusted Value $276,044

Adjusted -$7,011 for 34 sqft less living space. Net adjustment: -$7,011.

3 bed 2 bath 1,011 sqft Built 2023
Raw Value $364,837
Adjusted Value $486,847

Adjusted +$89,286 for 433 sqft more living space and +$32,724 for being newer. Net adjustment: +$122,010.

3 bed 2 bath 884 sqft Built 2023
Raw Value $353,477
Adjusted Value $501,674

Adjusted +$115,473 for 560 sqft more living space and +$32,724 for being newer. Net adjustment: +$148,197.

3 bed 2 bath 885 sqft Built 2024
Raw Value $400,901
Adjusted Value $549,603

Adjusted +$115,267 for 559 sqft more living space and +$33,435 for being newer. Net adjustment: +$148,702.

The Neighborhood

This home is valued 22.0% above the R464476H - MESA PARK ALL SECTIONS median of $279,680. With 722 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 6.4% over the past year.

R464476H - MESA PARK ALL SECTIONS

above average
722 Properties
$279,680 Median Value
-6.4% YoY Change
2% Have Pool
91% Have Garage
This Home
$341,200
Median
$279,680

This home is +22.0% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,139 across all districts. With a homestead exemption claimed, that drops to $4,826 — saving $1,313 per year. That's $402 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%$3,047
Round RockCity0.3720%$1,269
Williamson CountyCounty0.3694%$1,261
Austin Community Collegespecial0.1034%$353
Williamson County FM/RdCounty0.0443%$151
Upper Brushy Creek WCIDWater0.0170%$58
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$6,139

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $486,847 would pay approximately $3,039 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