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

4126 SUMMERCREST LOOP N, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath2,023 sqftBuilt 1999

Property at a Glance

This home is estimated between $283,901 and $673,207, with a best estimate of $350,620. That places the property below the L494500D - Vista Oaks Sec 5B Ph 2 & SEC 5C median of $449,628, in a neighborhood that declined 2.9% over the past year.

Estimated Value Range

$283,901 $673,207
Best Estimate
$350,620
WCAD Value
$461,889
High Confidence

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

Based on 5 comparable properties in L494500D - Vista Oaks Sec 5B Ph 2 & SEC 5C, this home's estimated market value is between $283,901 and $673,207. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

4205 N SUMMERCREST LOOP, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,786 sqft Built 2000
Raw Value $610,030
Adjusted Value $673,207

Adjusted +$66,729 for 237 sqft more living space and -$3,552 for being older. Net adjustment: +$63,177.

4234 SUMMERCREST LOOP N, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,296 sqft Built 2000
Raw Value $431,037
Adjusted Value $350,620

Adjusted -$76,865 for 273 sqft less living space and -$3,552 for being older. Net adjustment: -$80,417.

4222 SUMMERCREST LOOP N, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,612 sqft Built 2000
Raw Value $453,289
Adjusted Value $283,901

Adjusted -$165,836 for 589 sqft less living space and -$3,552 for being older. Net adjustment: -$169,388.

4132 SUMMERCREST LOOP N, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,446 sqft Built 1999
Raw Value $432,946
Adjusted Value $313,848

Adjusted -$119,098 for 423 sqft less living space. Net adjustment: -$119,098.

4120 SUMMERCREST LOOP N, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,489 sqft Built 1999
Raw Value $501,724
Adjusted Value $370,519

Adjusted -$131,205 for 466 sqft less living space. Net adjustment: -$131,205.

The Neighborhood

This home is valued 2.7% above the L494500D - Vista Oaks Sec 5B Ph 2 & SEC 5C median of $449,628. With 904 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 2.9% over the past year.

L494500D - Vista Oaks Sec 5B Ph 2 & SEC 5C

typical
904 Properties
$449,628 Median Value
-2.9% YoY Change
1% Have Pool
99% Have Garage
This Home
$461,889
Median
$449,628

This home is +2.7% above the subdivision median.

Tax Analysis

The estimated annual property tax is $8,933 across all districts. With a homestead exemption claimed, that drops to $7,326 — saving $1,607 per year. That's $611 per month a buyer should budget. The assessed value increased +8.0% vs the subdivision average of -2.9%. This above-average increase gives a protest opportunity score of 65 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Leander ISDSchool1.0869%$5,020
Williamson CountyCounty0.3694%$1,706
Vista Oaks MUDMUD0.2131%$984
Austin Community Collegespecial0.1034%$478
Williamson County ESD #9 - Round RockESD0.0999%$461
Williamson County FM/RdCounty0.0443%$205
Upper Brushy Creek WCIDWater0.0170%$79
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9341%$8,933
65 / 100

Moderate opportunity to protest.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $350,620 would pay approximately $2,189 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