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4002 FLOWSTONE LN, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed3 bath2,001 sqftBuilt 2022

Property at a Glance

This home is estimated between $436,556 and $628,146, with a best estimate of $458,298. 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

$436,556 $628,146
Best Estimate
$458,298
WCAD Value
$625,316
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 $436,556 and $628,146. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

4006 FLOWSTONE LN, ROUND ROCK, TX 78681
0.01 mi 100% similar Same subdivision
3 bed 2 bath 2,142 sqft Built 2022
Raw Value $467,812
Adjusted Value $436,556

Adjusted -$31,256 for 141 sqft less living space. Net adjustment: -$31,256.

4010 FLOWSTONE LN, ROUND ROCK, TX 78681
0.01 mi 100% similar Same subdivision
4 bed 3 bath 2,041 sqft Built 2022
Raw Value $612,143
Adjusted Value $603,276

Adjusted -$8,867 for 40 sqft less living space. Net adjustment: -$8,867.

4014 FLOWSTONE LN, ROUND ROCK, TX 78681
0.02 mi 100% similar Same subdivision
4 bed 3 bath 1,535 sqft Built 2016
Raw Value $513,889
Adjusted Value $628,146

Adjusted +$103,300 for 466 sqft more living space and +$10,957 for being newer. Net adjustment: +$114,257.

4019 FLOWSTONE LN, ROUND ROCK, TX 78681
0.03 mi 100% similar Same subdivision
3 bed 2 bath 1,829 sqft Built 2017
Raw Value $411,040
Adjusted Value $458,298

Adjusted +$38,128 for 172 sqft more living space and +$9,130 for being newer. Net adjustment: +$47,258.

4018 FLOWSTONE LN, ROUND ROCK, TX 78681
0.03 mi 100% similar Same subdivision
4 bed 3 bath 2,102 sqft Built 2016
Raw Value $451,986
Adjusted Value $440,554

Adjusted -$22,389 for 101 sqft less living space and +$10,957 for being newer. Net adjustment: -$11,432.

The Neighborhood

This home is valued 19.5% 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

above average
1,093 Properties
$523,371 Median Value
-9.3% YoY Change
1% Have Pool
100% Have Garage
This Home
$625,316
Median
$523,371

This home is +19.5% above the subdivision median.

Tax Analysis

The estimated annual property tax is $12,921 across all districts. With a homestead exemption claimed, that drops to $11,334 — saving $1,587 per year. That's $945 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%$6,570
Highlands at Mayfield Ranch MUDMUD0.4850%$3,033
Williamson CountyCounty0.3694%$2,310
Williamson County ESD #9 - Round RockESD0.0999%$625
Williamson County FM/RdCounty0.0443%$277
Upper Brushy Creek WCIDWater0.0170%$106
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.0663%$12,921

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $458,298 would pay approximately $2,861 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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