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4027 FLOWSTONE LN, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed3 bath1,916 sqftBuilt 2017

Property at a Glance

This home is estimated between $412,581 and $627,146, with a best estimate of $454,309. 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

$412,581 $627,146
Best Estimate
$454,309
WCAD Value
$539,044
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 $412,581 and $627,146. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

4023 FLOWSTONE LN, ROUND ROCK, TX 78681
0.01 mi 100% similar Same subdivision
4 bed 3 bath 1,508 sqft Built 2016
Raw Value $515,973
Adjusted Value $608,242

Adjusted +$90,443 for 408 sqft more living space and +$1,826 for being newer. Net adjustment: +$92,269.

4019 FLOWSTONE LN, ROUND ROCK, TX 78681
0.01 mi 100% similar Same subdivision
3 bed 2 bath 1,829 sqft Built 2017
Raw Value $411,040
Adjusted Value $430,326

Adjusted +$19,286 for 87 sqft more living space. Net adjustment: +$19,286.

4022 FLOWSTONE LN, ROUND ROCK, TX 78681
0.01 mi 100% similar Same subdivision
4 bed 4 bath 2,101 sqft Built 2016
Raw Value $493,493
Adjusted Value $454,309

Adjusted -$41,010 for 185 sqft less living space and +$1,826 for being newer. Net adjustment: -$39,184.

4018 FLOWSTONE LN, ROUND ROCK, TX 78681
0.02 mi 100% similar Same subdivision
4 bed 3 bath 2,102 sqft Built 2016
Raw Value $451,986
Adjusted Value $412,581

Adjusted -$41,231 for 186 sqft less living space and +$1,826 for being newer. Net adjustment: -$39,405.

4015 FLOWSTONE LN, ROUND ROCK, TX 78681
0.02 mi 100% similar Same subdivision
4 bed 2 bath 1,471 sqft Built 2017
Raw Value $528,501
Adjusted Value $627,146

Adjusted +$98,645 for 445 sqft more living space. Net adjustment: +$98,645.

The Neighborhood

This home is valued 3.0% 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
$539,044
Median
$523,371

This home is +3.0% above the subdivision median.

Tax Analysis

The estimated annual property tax is $11,138 across all districts. With a homestead exemption claimed, that drops to $9,568 — saving $1,570 per year. That's $797 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%$5,663
Highlands at Mayfield Ranch MUDMUD0.4850%$2,614
Williamson CountyCounty0.3694%$1,991
Williamson County ESD #9 - Round RockESD0.0999%$539
Williamson County FM/RdCounty0.0443%$239
Upper Brushy Creek WCIDWater0.0170%$92
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.0663%$11,138

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $454,309 would pay approximately $2,836 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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