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4048 FLOWSTONE LN, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath2,016 sqftBuilt 2017

Property at a Glance

This home is estimated between $429,833 and $625,214, with a best estimate of $440,008. 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

$429,833 $625,214
Best Estimate
$440,008
WCAD Value
$450,484
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 $429,833 and $625,214. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

4052 FLOWSTONE LN, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,104 sqft Built 2017
Raw Value $451,279
Adjusted Value $431,772

Adjusted -$19,507 for 88 sqft less living space. Net adjustment: -$19,507.

4040 FLOWSTONE LN, ROUND ROCK, TX 78681
0.01 mi 100% similar Same subdivision
4 bed 3 bath 1,876 sqft Built 2017
Raw Value $594,180
Adjusted Value $625,214

Adjusted +$31,034 for 140 sqft more living space. Net adjustment: +$31,034.

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 $453,464

Adjusted +$45,000 for 203 sqft more living space. Net adjustment: +$45,000.

4039 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 $429,833

Adjusted -$19,064 for 86 sqft less living space. Net adjustment: -$19,064.

4043 FLOWSTONE LN, ROUND ROCK, TX 78681
0.01 mi 100% similar Same subdivision
3 bed 2 bath 2,137 sqft Built 2017
Raw Value $466,830
Adjusted Value $440,008

Adjusted -$26,822 for 121 sqft less living space. Net adjustment: -$26,822.

The Neighborhood

This home is valued 13.9% 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
$450,484
Median
$523,371

This home is -13.9% below the subdivision median.

Tax Analysis

The estimated annual property tax is $9,308 across all districts. With a homestead exemption claimed, that drops to $7,754 — saving $1,554 per year. That's $646 per month a buyer should budget. The assessed value increased -3.2% vs the subdivision average of -9.3%. This above-average increase gives a protest opportunity score of 31 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Georgetown ISDSchool1.0506%$4,733
Highlands at Mayfield Ranch MUDMUD0.4850%$2,185
Williamson CountyCounty0.3694%$1,664
Williamson County ESD #9 - Round RockESD0.0999%$450
Williamson County FM/RdCounty0.0443%$200
Upper Brushy Creek WCIDWater0.0170%$77
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.0663%$9,308
31 / 100

Some opportunity.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $440,008 would pay approximately $2,747 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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