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

3917 ALABASTER CV, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

5 bed4 bath2,261 sqftBuilt 2008

Property at a Glance

This home is estimated between $636,429 and $1,182,752, with a best estimate of $885,190. That places the property below the R147606C - WALSH RANCH median of $933,667, in a neighborhood that declined 4.6% over the past year.

Estimated Value Range

$636,429 $1,182,752
Best Estimate
$885,190
WCAD Value
$994,463
Low Confidence

Based on 5 comparable properties(0 in the same subdivision)

There are 5 comparable properties within range, but none are in R147606C - WALSH RANCH. The estimated range of $636,429 and $1,182,752 should be treated as a rough guide.

Comparable Properties (5)

4 bed 3 bath 2,243 sqft Built 2019
Raw Value $476,264
Adjusted Value $636,429

Adjusted +$7,319 for 18 sqft more living space and +$152,846 for being newer. Net adjustment: +$160,165.

4 bed 3 bath 2,007 sqft Built 2011
Raw Value $740,222
Adjusted Value $885,190

Adjusted +$103,283 for 254 sqft more living space and +$41,685 for being newer. Net adjustment: +$144,968.

5 bed 4 bath 1,795 sqft Built 2024
Raw Value $770,942
Adjusted Value $1,182,752

Adjusted +$189,488 for 466 sqft more living space and +$222,322 for being newer. Net adjustment: +$411,810.

4 bed 3 bath 2,064 sqft Built 2019
Raw Value $695,939
Adjusted Value $928,890

Adjusted +$80,105 for 197 sqft more living space and +$152,846 for being newer. Net adjustment: +$232,951.

4 bed 2 bath 2,269 sqft Built 2017
Raw Value $522,642
Adjusted Value $644,445

Adjusted -$3,253 for 8 sqft less living space and +$125,056 for being newer. Net adjustment: +$121,803.

The Neighborhood

This home is valued 6.5% above the R147606C - WALSH RANCH median of $933,667. With 239 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 4.6% over the past year.

R147606C - WALSH RANCH

typical
239 Properties
$933,667 Median Value
-4.6% YoY Change
0% Have Pool
100% Have Garage
This Home
$994,463
Median
$933,667

This home is +6.5% above the subdivision median.

Tax Analysis

The estimated annual property tax is $17,921 across all districts. With a homestead exemption claimed, that drops to $16,494 — saving $1,427 per year. That's $1,375 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%$8,546
Williamson CountyCounty0.3694%$3,535
Walsh Ranch MUDMUD0.3455%$3,306
Austin Community Collegespecial0.1034%$989
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$957
Williamson County FM/RdCounty0.0443%$424
Upper Brushy Creek WCIDWater0.0170%$163
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.8728%$17,921

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $885,190 would pay approximately $5,525 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