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813 CACTUS DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath2,024 sqftBuilt 1977

Property at a Glance

This home is estimated between $425,269 and $510,707, with a best estimate of $444,702. That places the property above the R332479H - CHISHOLM VALLEY & NORTHRIDGE ACRES & WILLOW RUN median of $281,358, in a neighborhood that declined 9.6% over the past year.

Estimated Value Range

$425,269 $510,707
Best Estimate
$444,702
WCAD Value
$299,208
Low Confidence

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

There are 5 comparable properties within range, but few are in R332479H - CHISHOLM VALLEY & NORTHRIDGE ACRES & WILLOW RUN. The estimated range of $425,269 and $510,707 should be treated as a rough guide.

Comparable Properties (5)

3 bed 2 bath 2,044 sqft Built 1981
Raw Value $455,252
Adjusted Value $444,702

Adjusted -$4,314 for 20 sqft less living space and -$6,236 for being older. Net adjustment: -$10,550.

3 bed 2 bath 1,971 sqft Built 1975
Raw Value $496,156
Adjusted Value $510,707

Adjusted +$11,433 for 53 sqft more living space and +$3,118 for being newer. Net adjustment: +$14,551.

3 bed 2 bath 1,877 sqft Built 1984
Raw Value $405,447
Adjusted Value $426,244

Adjusted +$31,710 for 147 sqft more living space and -$10,913 for being older. Net adjustment: +$20,797.

4 bed 2 bath 1,934 sqft Built 1978
Raw Value $484,482
Adjusted Value $502,337

Adjusted +$19,414 for 90 sqft more living space and -$1,559 for being older. Net adjustment: +$17,855.

505 DRY CREEK CT, ROUND ROCK, TX 78681
0.00 mi 99% similar Same subdivision
3 bed 2 bath 1,254 sqft Built 1984
Raw Value $270,083
Adjusted Value $425,269

Adjusted +$166,099 for 770 sqft more living space and -$10,913 for being older. Net adjustment: +$155,186.

The Neighborhood

This home is valued 6.3% above the R332479H - CHISHOLM VALLEY & NORTHRIDGE ACRES & WILLOW RUN median of $281,358. With 1,006 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 9.6% over the past year.

R332479H - CHISHOLM VALLEY & NORTHRIDGE ACRES & WILLOW RUN

typical
1,006 Properties
$281,358 Median Value
-9.6% YoY Change
2% Have Pool
84% Have Garage
This Home
$299,208
Median
$281,358

This home is +6.3% above the subdivision median.

Tax Analysis

The estimated annual property tax is $5,384 across all districts. With a homestead exemption claimed, that drops to $4,078 — saving $1,306 per year. That's $340 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%$2,672
Round RockCity0.3720%$1,113
Williamson CountyCounty0.3694%$1,105
Austin Community Collegespecial0.1034%$309
Williamson County FM/RdCounty0.0443%$133
Upper Brushy Creek WCIDWater0.0170%$51
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$5,384

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $444,702 would pay approximately $2,776 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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