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512 KAROLYN DR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath1,546 sqftBuilt 1975

Property at a Glance

This home is estimated between $279,393 and $345,847, with a best estimate of $293,550. 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

$279,393 $345,847
Best Estimate
$293,550
WCAD Value
$341,330
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 $279,393 and $345,847. 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 $279,393

Adjusted -$99,968 for 460 sqft less living space. Net adjustment: -$99,968.

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 $303,945

Adjusted -$73,455 for 338 sqft less living space and -$2,086 for being older. Net adjustment: -$75,541.

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 $345,847

Adjusted +$21,515 for 99 sqft more living space and -$2,086 for being older. Net adjustment: +$19,429.

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 $293,550

Adjusted -$26,948 for 124 sqft less living space and +$1,252 for being newer. Net adjustment: -$25,696.

3 bed 2 bath 1,392 sqft Built 1975
Raw Value $258,164
Adjusted Value $291,631

Adjusted +$33,467 for 154 sqft more living space. Net adjustment: +$33,467.

The Neighborhood

This home is valued 3.6% below the R462475H - Egger Acres median of $353,946. That positions it competitively for buyers comparing within the neighborhood. 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
$341,330
Median
$353,946

This home is -3.6% below the subdivision median.

Tax Analysis

The estimated annual property tax is $6,141 across all districts. With a homestead exemption claimed, that drops to $4,828 — saving $1,313 per year. That's $402 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%$3,048
Round RockCity0.3720%$1,270
Williamson CountyCounty0.3694%$1,261
Austin Community Collegespecial0.1034%$353
Williamson County FM/RdCounty0.0443%$151
Upper Brushy Creek WCIDWater0.0170%$58
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$6,141

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $293,550 would pay approximately $1,832 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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