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516 DENNIS DR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath2,112 sqftBuilt 1975

Property at a Glance

This home is estimated between $406,251 and $472,705, with a best estimate of $430,803. 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

$406,251 $472,705
Best Estimate
$430,803
WCAD Value
$393,302
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 $406,251 and $472,705. 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 $406,251

Adjusted +$23,036 for 106 sqft more living space and +$3,854 for having a pool. Net adjustment: +$26,890.

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 $430,803

Adjusted +$49,549 for 228 sqft more living space and -$2,086 for being older and +$3,854 for having a pool. Net adjustment: +$51,317.

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 $472,705

Adjusted +$144,519 for 665 sqft more living space and -$2,086 for being older and +$3,854 for having a pool. Net adjustment: +$146,287.

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 $420,408

Adjusted +$96,056 for 442 sqft more living space and +$1,252 for being newer and +$3,854 for having a pool. Net adjustment: +$101,162.

3 bed 2 bath 1,830 sqft Built 1983
Raw Value $373,783
Adjusted Value $442,260

Adjusted +$61,285 for 282 sqft more living space and +$3,338 for being newer and +$3,854 for having a pool. Net adjustment: +$68,477.

The Neighborhood

This home is valued 11.1% 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
$393,302
Median
$353,946

This home is +11.1% above the subdivision median.

Tax Analysis

The estimated annual property tax is $7,077 across all districts. With a homestead exemption claimed, that drops to $5,754 — saving $1,323 per year. That's $480 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%$3,513
Round RockCity0.3720%$1,463
Williamson CountyCounty0.3694%$1,453
Austin Community Collegespecial0.1034%$407
Williamson County FM/RdCounty0.0443%$174
Upper Brushy Creek WCIDWater0.0170%$67
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$7,077

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $430,803 would pay approximately $2,689 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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