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

1617 DIANA DR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath1,352 sqftBuilt 1998

Property at a Glance

This home is estimated between $216,009 and $473,770, with a best estimate of $280,066. That places the property below the R655498G - Spring Ridge median of $314,073, in a neighborhood that declined 8.5% over the past year.

Estimated Value Range

$216,009 $473,770
Best Estimate
$280,066
WCAD Value
$285,620
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 $216,009 and $473,770. 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 $216,009

Adjusted -$90,565 for 426 sqft less living space and -$4,575 for being older. Net adjustment: -$95,140.

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 $473,770

Adjusted +$48,897 for 230 sqft more living space. Net adjustment: +$48,897.

1630 DIANA DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,597 sqft Built 1999
Raw Value $312,235
Adjusted Value $255,575

Adjusted -$52,085 for 245 sqft less living space and -$4,575 for being older. 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 $280,066

Adjusted +$6,165 for 29 sqft more living space and -$4,575 for being older. Net adjustment: +$1,590.

1622 DIANA DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 948 sqft Built 1999
Raw Value $345,403
Adjusted Value $426,716

Adjusted +$85,888 for 404 sqft more living space and -$4,575 for being older. Net adjustment: +$81,313.

The Neighborhood

This home is valued 9.1% below the R655498G - Spring Ridge median of $314,073. That positions it competitively for buyers comparing within the neighborhood. 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
$285,620
Median
$314,073

This home is -9.1% below the subdivision median.

Tax Analysis

The estimated annual property tax is $5,139 across all districts. With a homestead exemption claimed, that drops to $3,836 — saving $1,303 per year. That's $320 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%$2,551
Round RockCity0.3720%$1,063
Williamson CountyCounty0.3694%$1,055
Austin Community Collegespecial0.1034%$295
Williamson County FM/RdCounty0.0443%$127
Upper Brushy Creek WCIDWater0.0170%$49
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$5,139

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $280,066 would pay approximately $1,748 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