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

905 ROCK SPRING CV, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed2 bath1,473 sqftBuilt 1992

Property at a Glance

This home is estimated between $269,748 and $631,308, with a best estimate of $348,364. That places the property below the R280589F - Oakcreek Sec 1,2, and (AMD's) median of $502,867, in a neighborhood that declined 8.9% over the past year.

Estimated Value Range

$269,748 $631,308
Best Estimate
$348,364
WCAD Value
$630,109
Low Confidence

Based on 5 comparable properties(2 in the same subdivision)

There are 5 comparable properties within range, but few are in R280589F - Oakcreek Sec 1,2, and (AMD's). The estimated range of $269,748 and $631,308 should be treated as a rough guide.

Comparable Properties (5)

908 ROCK SPRING CV, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 2,235 sqft Built 1986
Raw Value $598,298
Adjusted Value $356,857

Adjusted -$254,092 for 762 sqft less living space and +$12,651 for being newer. Net adjustment: -$241,441.

903 ROCK SPRING CV, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,392 sqft Built 1993
Raw Value $606,407
Adjusted Value $631,308

Adjusted +$27,010 for 81 sqft more living space and -$2,109 for being older. Net adjustment: +$24,901.

3 bed 2 bath 1,494 sqft Built 2002
Raw Value $297,837
Adjusted Value $269,748

Adjusted -$7,003 for 21 sqft less living space and -$21,086 for being older. Net adjustment: -$28,089.

4 bed 2 bath 1,680 sqft Built 2002
Raw Value $360,986
Adjusted Value $270,875

Adjusted -$69,025 for 207 sqft less living space and -$21,086 for being older. Net adjustment: -$90,111.

3 bed 2 bath 1,428 sqft Built 1979
Raw Value $305,948
Adjusted Value $348,364

Adjusted +$15,005 for 45 sqft more living space and +$27,411 for being newer. Net adjustment: +$42,416.

The Neighborhood

This home is valued 25.3% above the R280589F - Oakcreek Sec 1,2, and (AMD's) median of $502,867. With 787 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 8.9% over the past year.

R280589F - Oakcreek Sec 1,2, and (AMD's)

above average
787 Properties
$502,867 Median Value
-8.9% YoY Change
2% Have Pool
99% Have Garage
This Home
$630,109
Median
$502,867

This home is +25.3% above the subdivision median.

Tax Analysis

The estimated annual property tax is $11,337 across all districts. With a homestead exemption claimed, that drops to $9,971 — saving $1,366 per year. That's $831 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%$5,628
Round RockCity0.3720%$2,344
Williamson CountyCounty0.3694%$2,328
Austin Community Collegespecial0.1034%$652
Williamson County FM/RdCounty0.0443%$279
Upper Brushy Creek WCIDWater0.0170%$107
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$11,337

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $348,364 would pay approximately $2,174 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