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

1630 DIANA DR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath1,597 sqftBuilt 1999

Property at a Glance

This home is estimated between $191,719 and $530,430, with a best estimate of $336,727. That places the property above the R655498G - Spring Ridge median of $314,073, in a neighborhood that declined 8.5% over the past year.

Estimated Value Range

$191,719 $530,430
Best Estimate
$336,727
WCAD Value
$312,235
High Confidence

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

Based on 5 comparable properties in R655498G - Spring Ridge, this home's estimated market value is between $191,719 and $530,430. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

1610 DIANA DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,778 sqft Built 1999
Raw Value $311,149
Adjusted Value $272,670

Adjusted -$38,479 for 181 sqft less living space. Net adjustment: -$38,479.

1601 DIANA DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,122 sqft Built 1998
Raw Value $424,873
Adjusted Value $530,430

Adjusted +$100,982 for 475 sqft more living space and +$4,575 for being newer. Net adjustment: +$105,557.

1642 DIANA DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,465 sqft Built 2000
Raw Value $380,825
Adjusted Value $191,719

Adjusted -$184,531 for 868 sqft less living space and -$4,575 for being older. Net adjustment: -$189,106.

1617 DIANA DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,352 sqft Built 1998
Raw Value $285,620
Adjusted Value $342,280

Adjusted +$52,085 for 245 sqft more living space and +$4,575 for being newer. Net adjustment: +$56,660.

1620 DIANA DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,323 sqft Built 1999
Raw Value $278,476
Adjusted Value $336,727

Adjusted +$58,251 for 274 sqft more living space. Net adjustment: +$58,251.

The Neighborhood

This home is in line with the R655498G - Spring Ridge median of $314,073. Note that values in this subdivision declined 8.5% over the past year.

R655498G - Spring Ridge

typical
108 Properties
$314,073 Median Value
-8.5% YoY Change
0% Have Pool
99% Have Garage
This Home
$312,235
Median
$314,073

This home is -0.6% below the subdivision median.

Tax Analysis

The estimated annual property tax is $5,618 across all districts. With a homestead exemption claimed, that drops to $4,310 — saving $1,308 per year. That's $359 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%$2,789
Round RockCity0.3720%$1,162
Williamson CountyCounty0.3694%$1,154
Austin Community Collegespecial0.1034%$323
Williamson County FM/RdCounty0.0443%$138
Upper Brushy Creek WCIDWater0.0170%$53
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$5,618

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $336,727 would pay approximately $2,102 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