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4031 FLOWSTONE LN, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath2,168 sqftBuilt 2017

Property at a Glance

This home is estimated between $463,527 and $658,909, with a best estimate of $508,855. 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

$463,527 $658,909
Best Estimate
$508,855
WCAD Value
$513,587
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 $463,527 and $658,909. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

4035 FLOWSTONE LN, ROUND ROCK, TX 78681
0.01 mi 100% similar Same subdivision
3 bed 2 bath 1,574 sqft Built 2017
Raw Value $377,181
Adjusted Value $508,855

Adjusted +$131,674 for 594 sqft more living space. Net adjustment: +$131,674.

4036 FLOWSTONE LN, ROUND ROCK, TX 78681
0.01 mi 100% similar Same subdivision
3 bed 2 bath 1,813 sqft Built 2017
Raw Value $408,464
Adjusted Value $487,158

Adjusted +$78,694 for 355 sqft more living space. Net adjustment: +$78,694.

4039 FLOWSTONE LN, ROUND ROCK, TX 78681
0.02 mi 100% similar Same subdivision
3 bed 2 bath 2,102 sqft Built 2017
Raw Value $448,897
Adjusted Value $463,527

Adjusted +$14,630 for 66 sqft more living space. Net adjustment: +$14,630.

4040 FLOWSTONE LN, ROUND ROCK, TX 78681
0.02 mi 100% similar Same subdivision
4 bed 3 bath 1,876 sqft Built 2017
Raw Value $594,180
Adjusted Value $658,909

Adjusted +$64,729 for 292 sqft more living space. Net adjustment: +$64,729.

4027 FLOWSTONE LN, ROUND ROCK, TX 78681
0.02 mi 100% similar Same subdivision
4 bed 3 bath 1,916 sqft Built 2017
Raw Value $539,044
Adjusted Value $594,906

Adjusted +$55,862 for 252 sqft more living space. Net adjustment: +$55,862.

The Neighborhood

This home is valued 1.9% below the G799514C - MAYFIELD RANCH median of $523,371. That positions it competitively for buyers comparing within the neighborhood. 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
$513,587
Median
$523,371

This home is -1.9% below the subdivision median.

Tax Analysis

The estimated annual property tax is $10,612 across all districts. With a homestead exemption claimed, that drops to $9,046 — saving $1,566 per year. That's $754 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%$5,396
Highlands at Mayfield Ranch MUDMUD0.4850%$2,491
Williamson CountyCounty0.3694%$1,897
Williamson County ESD #9 - Round RockESD0.0999%$513
Williamson County FM/RdCounty0.0443%$228
Upper Brushy Creek WCIDWater0.0170%$87
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.0663%$10,612

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $508,855 would pay approximately $3,176 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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