Beta Williamson County, TX only — data and coverage are limited during early access.

911 CACTUS DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath1,322 sqftBuilt 1977

Property at a Glance

This home is estimated between $273,838 and $340,753, with a best estimate of $294,175. 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

$273,838 $340,753
Best Estimate
$294,175
WCAD Value
$278,110
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 $273,838 and $340,753 should be treated as a rough guide.

Comparable Properties (5)

3 bed 2 bath 1,269 sqft Built 1982
Raw Value $290,537
Adjusted Value $294,175

Adjusted +$11,433 for 53 sqft more living space and -$7,795 for being older. Net adjustment: +$3,638.

3 bed 2 bath 1,303 sqft Built 1984
Raw Value $347,567
Adjusted Value $340,753

Adjusted +$4,099 for 19 sqft more living space and -$10,913 for being older. Net adjustment: -$6,814.

505 DRY CREEK CT, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,254 sqft Built 1984
Raw Value $270,083
Adjusted Value $273,838

Adjusted +$14,668 for 68 sqft more living space and -$10,913 for being older. Net adjustment: +$3,755.

3 bed 2 bath 1,212 sqft Built 1982
Raw Value $268,403
Adjusted Value $284,336

Adjusted +$23,728 for 110 sqft more living space and -$7,795 for being older. Net adjustment: +$15,933.

3 bed 2 bath 1,542 sqft Built 1975
Raw Value $383,067
Adjusted Value $338,728

Adjusted -$47,457 for 220 sqft less living space and +$3,118 for being newer. Net adjustment: -$44,339.

The Neighborhood

This home is valued 1.2% below the R332479H - CHISHOLM VALLEY & NORTHRIDGE ACRES & WILLOW RUN median of $281,358. That positions it competitively for buyers comparing within the neighborhood. 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
$278,110
Median
$281,358

This home is -1.2% below the subdivision median.

Tax Analysis

The estimated annual property tax is $5,004 across all districts. With a homestead exemption claimed, that drops to $3,702 — saving $1,302 per year. That's $309 per month a buyer should budget. The assessed value increased -2.2% vs the subdivision average of -9.6%. This above-average increase gives a protest opportunity score of 37 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$2,484
Round RockCity0.3720%$1,035
Williamson CountyCounty0.3694%$1,027
Austin Community Collegespecial0.1034%$288
Williamson County FM/RdCounty0.0443%$123
Upper Brushy Creek WCIDWater0.0170%$47
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$5,004
37 / 100

Some opportunity.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $294,175 would pay approximately $1,836 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.

View full property details