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521 DENNIS DR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath1,655 sqftBuilt 1976

Property at a Glance

This home is estimated between $229,593 and $448,643, with a best estimate of $323,100. 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

$229,593 $448,643
Best Estimate
$323,100
WCAD Value
$349,186
Low Confidence

Based on 5 comparable properties(1 in the same subdivision)

There are 5 comparable properties within range, but few are in R462475H - Egger Acres. The estimated range of $229,593 and $448,643 should be treated as a rough guide.

Comparable Properties (5)

3 bed 2 bath 1,598 sqft Built 1985
Raw Value $306,958
Adjusted Value $323,100

Adjusted +$12,387 for 57 sqft more living space and +$3,755 for being newer. Net adjustment: +$16,142.

3 bed 2 bath 1,804 sqft Built 1969
Raw Value $264,894
Adjusted Value $229,593

Adjusted -$32,381 for 149 sqft less living space and -$2,920 for being older. Net adjustment: -$35,301.

521 WEDDINGTON DR, ROUND ROCK, TX 78664
0.00 mi 99% similar Same subdivision
2 bed 1 bath 1,518 sqft Built 1975
Raw Value $419,287
Adjusted Value $448,643

Adjusted +$29,773 for 137 sqft more living space and -$417 for being older. Net adjustment: +$29,356.

3 bed 4 bath 2,124 sqft Built 1985
Raw Value $375,595
Adjusted Value $277,426

Adjusted -$101,924 for 469 sqft less living space and +$3,755 for being newer. Net adjustment: -$98,169.

3 bed 2 bath 1,338 sqft Built 1979
Raw Value $361,359
Adjusted Value $431,502

Adjusted +$68,891 for 317 sqft more living space and +$1,252 for being newer. Net adjustment: +$70,143.

The Neighborhood

This home is valued 1.3% 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
$349,186
Median
$353,946

This home is -1.3% below the subdivision median.

Tax Analysis

The estimated annual property tax is $6,283 across all districts. With a homestead exemption claimed, that drops to $4,968 — saving $1,315 per year. That's $414 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%$3,119
Round RockCity0.3720%$1,299
Williamson CountyCounty0.3694%$1,290
Austin Community Collegespecial0.1034%$361
Williamson County FM/RdCounty0.0443%$155
Upper Brushy Creek WCIDWater0.0170%$59
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$6,283

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $323,100 would pay approximately $2,017 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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