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

1645 BELVEDERE PL, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed2 bath1,608 sqftBuilt 2001

Property at a Glance

This home is estimated between $325,225 and $517,642, with a best estimate of $466,234. That places the property above the R530506E - SONOMA ALL SECTIONS median of $451,534, in a neighborhood that declined 7.0% over the past year.

Estimated Value Range

$325,225 $517,642
Best Estimate
$466,234
WCAD Value
$481,730
Medium Confidence

Based on 5 comparable properties(4 in the same subdivision)

Based on 5 comparable properties (4 in the same subdivision, 1 nearby), the estimated range is $325,225 and $517,642. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

936 RUSK RD, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,379 sqft Built 2004
Raw Value $402,460
Adjusted Value $447,532

Adjusted +$61,368 for 229 sqft more living space and -$16,296 for being older. Net adjustment: +$45,072.

600 ARROWOOD PL, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,352 sqft Built 2003
Raw Value $412,559
Adjusted Value $470,298

Adjusted +$68,603 for 256 sqft more living space and -$10,864 for being older. Net adjustment: +$57,739.

4 bed 2 bath 1,647 sqft Built 2008
Raw Value $566,118
Adjusted Value $517,642

Adjusted -$10,451 for 39 sqft less living space and -$38,025 for being older. Net adjustment: -$48,476.

712 ARROWOOD PL, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,543 sqft Built 2003
Raw Value $459,679
Adjusted Value $466,234

Adjusted +$17,419 for 65 sqft more living space and -$10,864 for being older. Net adjustment: +$6,555.

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 $325,225

Adjusted -$39,661 for 148 sqft less living space and -$5,432 for being older. Net adjustment: -$45,093.

The Neighborhood

This home is valued 6.7% above the R530506E - SONOMA ALL SECTIONS median of $451,534. With 1,029 homes in the subdivision, the property sits in the upper tier. 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
$481,730
Median
$451,534

This home is +6.7% above the subdivision median.

Tax Analysis

The estimated annual property tax is $8,668 across all districts. With a homestead exemption claimed, that drops to $7,328 — saving $1,340 per year. That's $611 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%$4,302
Round RockCity0.3720%$1,792
Williamson CountyCounty0.3694%$1,780
Austin Community Collegespecial0.1034%$498
Williamson County FM/RdCounty0.0443%$214
Upper Brushy Creek WCIDWater0.0170%$82
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$8,668

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $466,234 would pay approximately $2,910 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