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4055 FLOWSTONE LN, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed3 bath1,918 sqftBuilt 2017

Property at a Glance

This home is estimated between $408,109 and $630,118, with a best estimate of $434,407. That places the property below the G799514C - MAYFIELD RANCH median of $523,371, in a neighborhood that declined 9.3% over the past year.

Estimated Value Range

$408,109 $630,118
Best Estimate
$434,407
WCAD Value
$567,304
High Confidence

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

Based on 5 comparable properties in G799514C - MAYFIELD RANCH, this home's estimated market value is between $408,109 and $630,118. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

4059 FLOWSTONE LN, ROUND ROCK, TX 78681
0.01 mi 100% similar Same subdivision
3 bed 2 bath 2,102 sqft Built 2017
Raw Value $448,897
Adjusted Value $408,109

Adjusted -$40,788 for 184 sqft less living space. Net adjustment: -$40,788.

4051 FLOWSTONE LN, ROUND ROCK, TX 78681
0.01 mi 100% similar Same subdivision
4 bed 3 bath 1,535 sqft Built 2016
Raw Value $511,346
Adjusted Value $598,073

Adjusted +$84,901 for 383 sqft more living space and +$1,826 for being newer. Net adjustment: +$86,727.

4043 FLOWSTONE LN, ROUND ROCK, TX 78681
0.02 mi 100% similar Same subdivision
3 bed 2 bath 2,137 sqft Built 2017
Raw Value $466,830
Adjusted Value $418,284

Adjusted -$48,546 for 219 sqft less living space. Net adjustment: -$48,546.

4056 FLOWSTONE LN, ROUND ROCK, TX 78681
0.03 mi 100% similar Same subdivision
4 bed 3 bath 1,490 sqft Built 2016
Raw Value $533,416
Adjusted Value $630,118

Adjusted +$94,876 for 428 sqft more living space and +$1,826 for being newer. Net adjustment: +$96,702.

4063 FLOWSTONE LN, ROUND ROCK, TX 78681
0.03 mi 100% similar Same subdivision
3 bed 2 bath 1,792 sqft Built 2017
Raw Value $406,476
Adjusted Value $434,407

Adjusted +$27,931 for 126 sqft more living space. Net adjustment: +$27,931.

The Neighborhood

This home is valued 8.4% above the G799514C - MAYFIELD RANCH median of $523,371. With 1,093 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 9.3% over the past year.

G799514C - MAYFIELD RANCH

typical
1,093 Properties
$523,371 Median Value
-9.3% YoY Change
1% Have Pool
100% Have Garage
This Home
$567,304
Median
$523,371

This home is +8.4% above the subdivision median.

Tax Analysis

The estimated annual property tax is $11,722 across all districts. With a homestead exemption claimed, that drops to $10,146 — saving $1,576 per year. That's $846 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
Georgetown ISDSchool1.0506%$5,960
Highlands at Mayfield Ranch MUDMUD0.4850%$2,751
Williamson CountyCounty0.3694%$2,096
Williamson County ESD #9 - Round RockESD0.0999%$567
Williamson County FM/RdCounty0.0443%$251
Upper Brushy Creek WCIDWater0.0170%$96
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.0663%$11,722

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $434,407 would pay approximately $2,712 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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