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516 KAROLYN DR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

2 bed2 bath1,353 sqftBuilt 1970

Property at a Glance

This home is estimated between $239,536 and $305,990, with a best estimate of $253,693. 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

$239,536 $305,990
Best Estimate
$253,693
WCAD Value
$363,670
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 $239,536 and $305,990. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

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 $264,088

Adjusted -$115,398 for 531 sqft less living space. Net adjustment: -$115,398.

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 $305,990

Adjusted -$20,428 for 94 sqft less living space. Net adjustment: -$20,428.

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 $253,693

Adjusted -$68,891 for 317 sqft less living space and +$3,338 for being newer. Net adjustment: -$65,553.

3 bed 2 bath 1,392 sqft Built 1975
Raw Value $258,164
Adjusted Value $251,774

Adjusted -$8,476 for 39 sqft less living space and +$2,086 for being newer. Net adjustment: -$6,390.

608 KAROLYN DR, ROUND ROCK, TX 78664
0.00 mi 97% similar Same subdivision
3 bed 2 bath 2,006 sqft Built 1975
Raw Value $379,361
Adjusted Value $239,536

Adjusted -$141,911 for 653 sqft less living space and +$2,086 for being newer. Net adjustment: -$139,825.

The Neighborhood

This home is valued 2.7% 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
$363,670
Median
$353,946

This home is +2.7% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,543 across all districts. With a homestead exemption claimed, that drops to $5,226 — saving $1,317 per year. That's $436 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%$3,248
Round RockCity0.3720%$1,353
Williamson CountyCounty0.3694%$1,344
Austin Community Collegespecial0.1034%$376
Williamson County FM/RdCounty0.0443%$161
Upper Brushy Creek WCIDWater0.0170%$62
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$6,543

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $253,693 would pay approximately $1,584 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 4/19/2026.

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