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503 PETERSON ST, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath2,042 sqftBuilt 1990

Property at a Glance

This home is estimated between $600,248 and $649,229, with a best estimate of $639,217. That places the property above the R505490H - DOVE CREEK & TWIN RIDGE - GE 1985 median of $318,314, in a neighborhood that declined 16.9% over the past year.

Estimated Value Range

$600,248 $649,229
Best Estimate
$639,217
WCAD Value
$331,712
High Confidence

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

Based on 5 comparable properties in R505490H - DOVE CREEK & TWIN RIDGE - GE 1985, this home's estimated market value is between $600,248 and $649,229. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

505 PETERSON ST, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,354 sqft Built 1990
Raw Value $384,303
Adjusted Value $600,248

Adjusted +$215,945 for 688 sqft more living space. Net adjustment: +$215,945.

502 PETERSON ST, ROUND ROCK, TX 78664
0.00 mi 99% similar Same subdivision
3 bed 2 bath 1,100 sqft Built 1990
Raw Value $353,560
Adjusted Value $649,229

Adjusted +$295,669 for 942 sqft more living space. Net adjustment: +$295,669.

500 PETERSON ST, ROUND ROCK, TX 78664
0.00 mi 97% similar Same subdivision
3 bed 2 bath 1,015 sqft Built 1990
Raw Value $318,262
Adjusted Value $640,610

Adjusted +$322,348 for 1,027 sqft more living space. Net adjustment: +$322,348.

501 PETERSON ST, ROUND ROCK, TX 78664
0.00 mi 97% similar Same subdivision
3 bed 2 bath 1,032 sqft Built 1991
Raw Value $335,812
Adjusted Value $639,217

Adjusted +$317,013 for 1,010 sqft more living space and -$13,608 for being older. Net adjustment: +$303,405.

404 PETERSON ST, ROUND ROCK, TX 78664
0.00 mi 97% similar Same subdivision
3 bed 2 bath 1,019 sqft Built 1992
Raw Value $318,314
Adjusted Value $612,192

Adjusted +$321,093 for 1,023 sqft more living space and -$27,215 for being older. Net adjustment: +$293,878.

The Neighborhood

This home is valued 4.2% above the R505490H - DOVE CREEK & TWIN RIDGE - GE 1985 median of $318,314. With 37 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 16.9% over the past year.

R505490H - DOVE CREEK & TWIN RIDGE - GE 1985

typical
37 Properties
$318,314 Median Value
-16.9% YoY Change
0% Have Pool
100% Have Garage
This Home
$331,712
Median
$318,314

This home is +4.2% above the subdivision median.

Tax Analysis

The estimated annual property tax is $5,968 across all districts. With a homestead exemption claimed, that drops to $4,657 — saving $1,311 per year. That's $388 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%$2,963
Round RockCity0.3720%$1,234
Williamson CountyCounty0.3694%$1,226
Austin Community Collegespecial0.1034%$343
Williamson County FM/RdCounty0.0443%$147
Upper Brushy Creek WCIDWater0.0170%$56
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$5,968

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $639,217 would pay approximately $3,990 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.

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