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4128 SUMMERCREST LOOP N, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed2 bath2,578 sqftBuilt 1999

Property at a Glance

This home is estimated between $440,164 and $829,470, with a best estimate of $506,884. That places the property above 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

$440,164 $829,470
Best Estimate
$506,884
WCAD Value
$443,743
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 $440,164 and $829,470. 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 $829,470

Adjusted +$222,992 for 792 sqft more living space and -$3,552 for being older. Net adjustment: +$219,440.

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 $506,884

Adjusted +$79,399 for 282 sqft more living space and -$3,552 for being older. Net adjustment: +$75,847.

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 $440,164

Adjusted -$9,573 for 34 sqft less living space and -$3,552 for being older. Net adjustment: -$13,125.

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 $470,111

Adjusted +$37,165 for 132 sqft more living space. Net adjustment: +$37,165.

4126 SUMMERCREST LOOP N, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,023 sqft Built 1999
Raw Value $461,889
Adjusted Value $618,152

Adjusted +$156,263 for 555 sqft more living space. Net adjustment: +$156,263.

The Neighborhood

This home is valued 1.3% below the L494500D - Vista Oaks Sec 5B Ph 2 & SEC 5C median of $449,628. That positions it competitively for buyers comparing within the neighborhood. 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
$443,743
Median
$449,628

This home is -1.3% below the subdivision median.

Tax Analysis

The estimated annual property tax is $8,582 across all districts. With a homestead exemption claimed, that drops to $6,979 — saving $1,603 per year. That's $582 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
Leander ISDSchool1.0869%$4,823
Williamson CountyCounty0.3694%$1,639
Vista Oaks MUDMUD0.2131%$946
Austin Community Collegespecial0.1034%$459
Williamson County ESD #9 - Round RockESD0.0999%$443
Williamson County FM/RdCounty0.0443%$197
Upper Brushy Creek WCIDWater0.0170%$75
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9341%$8,582

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $506,884 would pay approximately $3,164 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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