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

3716 CAP ROCK TRL, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath696 sqftBuilt 2005

Property at a Glance

This home is estimated between $60,984 and $297,775, with a best estimate of $137,394. That places the property below the R107503F - PRESERVE AT STONE OAK - PH 3 & 4 median of $368,194, in a neighborhood that declined 10.9% over the past year.

Estimated Value Range

$60,984 $297,775
Best Estimate
$137,394
WCAD Value
$316,873
High Confidence

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

Based on 5 comparable properties in R107503F - PRESERVE AT STONE OAK - PH 3 & 4, this home's estimated market value is between $60,984 and $297,775. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

4100 ROCKY MOUNTAIN TRL, ROUND ROCK, TX 78681
0.00 mi 98% similar Same subdivision
4 bed 2 bath 1,105 sqft Built 2006
Raw Value $379,635
Adjusted Value $297,775

Adjusted -$83,261 for 409 sqft less living space and +$1,401 for being newer. Net adjustment: -$81,860.

3710 CAP ROCK TRL, ROUND ROCK, TX 78681
0.00 mi 96% similar Same subdivision
3 bed 2 bath 1,573 sqft Built 2005
Raw Value $315,928
Adjusted Value $137,394

Adjusted -$178,534 for 877 sqft less living space. Net adjustment: -$178,534.

3203 FOOTHILLS TRL, ROUND ROCK, TX 78681
0.00 mi 92% similar Same subdivision
3 bed 2 bath 1,853 sqft Built 2002
Raw Value $377,221
Adjusted Value $137,485

Adjusted -$235,534 for 1,157 sqft less living space and -$4,202 for being older. Net adjustment: -$239,736.

4101 ROCKY MOUNTAIN TRL, ROUND ROCK, TX 78681
0.00 mi 91% similar Same subdivision
3 bed 2 bath 2,208 sqft Built 2006
Raw Value $378,530
Adjusted Value $72,128

Adjusted -$307,803 for 1,512 sqft less living space and +$1,401 for being newer. Net adjustment: -$306,402.

3200 FOOTHILLS TRL, ROUND ROCK, TX 78681
0.00 mi 90% similar Same subdivision
3 bed 2 bath 2,228 sqft Built 2002
Raw Value $377,060
Adjusted Value $60,984

Adjusted -$311,874 for 1,532 sqft less living space and -$4,202 for being older. Net adjustment: -$316,076.

The Neighborhood

This home is valued 13.9% below the R107503F - PRESERVE AT STONE OAK - PH 3 & 4 median of $368,194. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 10.9% over the past year.

R107503F - PRESERVE AT STONE OAK - PH 3 & 4

typical
1,045 Properties
$368,194 Median Value
-10.9% YoY Change
1% Have Pool
99% Have Garage
This Home
$316,873
Median
$368,194

This home is -13.9% below the subdivision median.

Tax Analysis

The estimated annual property tax is $5,701 across all districts. With a homestead exemption claimed, that drops to $4,393 — saving $1,308 per year. That's $366 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%$2,830
Round RockCity0.3720%$1,179
Williamson CountyCounty0.3694%$1,171
Austin Community Collegespecial0.1034%$328
Williamson County FM/RdCounty0.0443%$140
Upper Brushy Creek WCIDWater0.0170%$54
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$5,701

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $137,394 would pay approximately $858 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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