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500 SARA DR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

4 bed2 bath2,414 sqftBuilt 1977

Property at a Glance

This home is estimated between $457,925 and $491,746, with a best estimate of $481,350. That places the property above the R462475H - Egger Acres median of $353,946, in a neighborhood that declined 4.4% over the past year.

Estimated Value Range

$457,925 $491,746
Best Estimate
$481,350
WCAD Value
$460,016
Medium Confidence

Based on 5 comparable properties(3 in the same subdivision)

Based on 5 comparable properties (3 in the same subdivision, 2 nearby), the estimated range is $457,925 and $491,746. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

608 KAROLYN DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,006 sqft Built 1975
Raw Value $379,361
Adjusted Value $467,194

Adjusted +$88,667 for 408 sqft more living space and -$834 for being older. Net adjustment: +$87,833.

602 VIRGINIA DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,884 sqft Built 1970
Raw Value $379,486
Adjusted Value $491,746

Adjusted +$115,180 for 530 sqft more living space and -$2,920 for being older. Net adjustment: +$112,260.

1703 GREYSON DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,670 sqft Built 1978
Raw Value $319,246
Adjusted Value $481,350

Adjusted +$161,687 for 744 sqft more living space and +$417 for being newer. Net adjustment: +$162,104.

4 bed 2 bath 2,326 sqft Built 1996
Raw Value $455,545
Adjusted Value $482,596

Adjusted +$19,124 for 88 sqft more living space and +$7,927 for being newer. Net adjustment: +$27,051.

4 bed 2 bath 2,491 sqft Built 1998
Raw Value $465,898
Adjusted Value $457,925

Adjusted -$16,734 for 77 sqft less living space and +$8,761 for being newer. Net adjustment: -$7,973.

The Neighborhood

This home is valued 30.0% above the R462475H - Egger Acres median of $353,946. With 340 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 4.4% over the past year.

R462475H - Egger Acres

above average
340 Properties
$353,946 Median Value
-4.4% YoY Change
6% Have Pool
87% Have Garage
This Home
$460,016
Median
$353,946

This home is +30.0% above the subdivision median.

Tax Analysis

The estimated annual property tax is $8,277 across all districts. With a homestead exemption claimed, that drops to $6,942 — saving $1,335 per year. That's $579 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%$4,108
Round RockCity0.3720%$1,711
Williamson CountyCounty0.3694%$1,700
Austin Community Collegespecial0.1034%$476
Williamson County FM/RdCounty0.0443%$204
Upper Brushy Creek WCIDWater0.0170%$78
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$8,277

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $481,350 would pay approximately $3,005 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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