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508 HEATHER DR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

4 bed2 bath2,159 sqftBuilt 1978

Property at a Glance

This home is estimated between $411,359 and $477,813, with a best estimate of $426,762. 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

$411,359 $477,813
Best Estimate
$426,762
WCAD Value
$403,036
Medium Confidence

Based on 5 comparable properties(4 in the same subdivision)

Based on 5 comparable properties (4 in the same subdivision, 1 nearby), the estimated range is $411,359 and $477,813. 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 $411,359

Adjusted +$33,250 for 153 sqft more living space and -$1,252 for being older. Net adjustment: +$31,998.

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 $435,911

Adjusted +$59,763 for 275 sqft more living space and -$3,338 for being older. Net adjustment: +$56,425.

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 $425,516

Adjusted +$106,270 for 489 sqft more living space. Net adjustment: +$106,270.

516 VIRGINIA DR, ROUND ROCK, TX 78664
0.00 mi 97% similar Same subdivision
3 bed 2 bath 1,447 sqft Built 1970
Raw Value $326,418
Adjusted Value $477,813

Adjusted +$154,733 for 712 sqft more living space and -$3,338 for being older. Net adjustment: +$151,395.

4 bed 2 bath 2,326 sqft Built 1996
Raw Value $455,545
Adjusted Value $426,762

Adjusted -$36,293 for 167 sqft less living space and +$7,510 for being newer. Net adjustment: -$28,783.

The Neighborhood

This home is valued 13.9% 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

typical
340 Properties
$353,946 Median Value
-4.4% YoY Change
6% Have Pool
87% Have Garage
This Home
$403,036
Median
$353,946

This home is +13.9% above the subdivision median.

Tax Analysis

The estimated annual property tax is $7,252 across all districts. With a homestead exemption claimed, that drops to $5,927 — saving $1,325 per year. That's $494 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%$3,600
Round RockCity0.3720%$1,499
Williamson CountyCounty0.3694%$1,489
Austin Community Collegespecial0.1034%$417
Williamson County FM/RdCounty0.0443%$179
Upper Brushy Creek WCIDWater0.0170%$69
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$7,252

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $426,762 would pay approximately $2,664 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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