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505 PETERSON ST, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath1,354 sqftBuilt 1990

Property at a Glance

This home is estimated between $115,767 and $433,284, with a best estimate of $423,271. 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

$115,767 $433,284
Best Estimate
$423,271
WCAD Value
$384,303
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 $115,767 and $433,284. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

404 PETERSON ST, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,019 sqft Built 1992
Raw Value $318,314
Adjusted Value $396,247

Adjusted +$105,148 for 335 sqft more living space and -$27,215 for being older. Net adjustment: +$77,933.

500 PETERSON ST, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,015 sqft Built 1990
Raw Value $318,262
Adjusted Value $424,665

Adjusted +$106,403 for 339 sqft more living space. Net adjustment: +$106,403.

502 PETERSON ST, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,100 sqft Built 1990
Raw Value $353,560
Adjusted Value $433,284

Adjusted +$79,724 for 254 sqft more living space. Net adjustment: +$79,724.

503 PETERSON ST, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,042 sqft Built 1990
Raw Value $331,712
Adjusted Value $115,767

Adjusted -$215,945 for 688 sqft less living space. Net adjustment: -$215,945.

501 PETERSON ST, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,032 sqft Built 1991
Raw Value $335,812
Adjusted Value $423,271

Adjusted +$101,067 for 322 sqft more living space and -$13,608 for being older. Net adjustment: +$87,459.

The Neighborhood

This home is valued 20.7% 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

above average
37 Properties
$318,314 Median Value
-16.9% YoY Change
0% Have Pool
100% Have Garage
This Home
$384,303
Median
$318,314

This home is +20.7% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,915 across all districts. With a homestead exemption claimed, that drops to $5,593 — saving $1,322 per year. That's $466 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%$3,432
Round RockCity0.3720%$1,430
Williamson CountyCounty0.3694%$1,420
Austin Community Collegespecial0.1034%$397
Williamson County FM/RdCounty0.0443%$170
Upper Brushy Creek WCIDWater0.0170%$65
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$6,915

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $423,271 would pay approximately $2,642 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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