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

1640 BELVEDERE PL, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath2,340 sqftBuilt 2002

Property at a Glance

This home is estimated between $392,312 and $667,828, with a best estimate of $444,933. That places the property below the R530506E - SONOMA ALL SECTIONS median of $451,534, in a neighborhood that declined 7.0% over the past year.

Estimated Value Range

$392,312 $667,828
Best Estimate
$444,933
WCAD Value
$396,569
Low Confidence

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

There are 5 comparable properties within range, but few are in R530506E - SONOMA ALL SECTIONS. The estimated range of $392,312 and $667,828 should be treated as a rough guide.

Comparable Properties (5)

3 bed 2 bath 2,148 sqft Built 2005
Raw Value $409,777
Adjusted Value $444,933

Adjusted +$51,452 for 192 sqft more living space and -$16,296 for being older. Net adjustment: +$35,156.

1643 BELVEDERE PL, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,756 sqft Built 2002
Raw Value $370,318
Adjusted Value $526,819

Adjusted +$156,501 for 584 sqft more living space. Net adjustment: +$156,501.

712 ARROWOOD PL, ROUND ROCK, TX 78665
0.00 mi 99% similar Same subdivision
4 bed 2 bath 1,543 sqft Built 2003
Raw Value $459,679
Adjusted Value $667,828

Adjusted +$213,581 for 797 sqft more living space and -$5,432 for being older. Net adjustment: +$208,149.

3 bed 2 bath 2,328 sqft Built 2017
Raw Value $470,578
Adjusted Value $392,312

Adjusted +$3,216 for 12 sqft more living space and -$81,482 for being older. Net adjustment: -$78,266.

3 bed 2 bath 2,132 sqft Built 2015
Raw Value $408,191
Adjusted Value $393,313

Adjusted +$55,740 for 208 sqft more living space and -$70,618 for being older. Net adjustment: -$14,878.

The Neighborhood

This home is valued 12.2% below the R530506E - SONOMA ALL SECTIONS median of $451,534. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 7.0% over the past year.

R530506E - SONOMA ALL SECTIONS

typical
1,029 Properties
$451,534 Median Value
-7.0% YoY Change
2% Have Pool
100% Have Garage
This Home
$396,569
Median
$451,534

This home is -12.2% below the subdivision median.

Tax Analysis

The estimated annual property tax is $7,135 across all districts. With a homestead exemption claimed, that drops to $5,812 — saving $1,323 per year. That's $484 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%$3,542
Round RockCity0.3720%$1,475
Williamson CountyCounty0.3694%$1,465
Austin Community Collegespecial0.1034%$410
Williamson County FM/RdCounty0.0443%$176
Upper Brushy Creek WCIDWater0.0170%$67
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$7,135

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $444,933 would pay approximately $2,777 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