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

501 HEATHER DR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath1,652 sqftBuilt 1976

Property at a Glance

This home is estimated between $302,012 and $368,466, with a best estimate of $316,168. That places the property below the R462475H - Egger Acres median of $353,946, in a neighborhood that declined 4.4% over the past year.

Estimated Value Range

$302,012 $368,466
Best Estimate
$316,168
WCAD Value
$371,269
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 $302,012 and $368,466. 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 $302,012

Adjusted -$76,932 for 354 sqft less living space and -$417 for being older. Net adjustment: -$77,349.

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 $326,564

Adjusted -$50,419 for 232 sqft less living space and -$2,503 for being older. Net adjustment: -$52,922.

516 VIRGINIA DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,447 sqft Built 1970
Raw Value $326,418
Adjusted Value $368,466

Adjusted +$44,551 for 205 sqft more living space and -$2,503 for being older. Net adjustment: +$42,048.

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 $316,168

Adjusted -$3,912 for 18 sqft less living space and +$834 for being newer. Net adjustment: -$3,078.

3 bed 2 bath 1,392 sqft Built 1975
Raw Value $258,164
Adjusted Value $314,250

Adjusted +$56,503 for 260 sqft more living space and -$417 for being older. Net adjustment: +$56,086.

The Neighborhood

This home is valued 4.9% 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
$371,269
Median
$353,946

This home is +4.9% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,680 across all districts. With a homestead exemption claimed, that drops to $5,361 — saving $1,319 per year. That's $447 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%$3,316
Round RockCity0.3720%$1,381
Williamson CountyCounty0.3694%$1,372
Austin Community Collegespecial0.1034%$384
Williamson County FM/RdCounty0.0443%$165
Upper Brushy Creek WCIDWater0.0170%$63
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$6,680

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $316,168 would pay approximately $1,974 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