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3821 WINNIE PL, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

5 bed3 bath2,217 sqftBuilt 2021

Property at a Glance

This home is estimated between $419,801 and $1,023,831, with a best estimate of $888,120. That places the property above the G799514C - MAYFIELD RANCH median of $523,371, in a neighborhood that declined 9.3% over the past year.

Estimated Value Range

$419,801 $1,023,831
Best Estimate
$888,120
WCAD Value
$546,251
Low Confidence

Based on 5 comparable properties(2 in the same subdivision)

There are 5 comparable properties within range, but few are in G799514C - MAYFIELD RANCH. The estimated range of $419,801 and $1,023,831 should be treated as a rough guide.

Comparable Properties (5)

3820 WINNIE PL, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 3,214 sqft Built 2021
Raw Value $640,809
Adjusted Value $419,801

Adjusted -$221,008 for 997 sqft less living space. Net adjustment: -$221,008.

3824 WINNIE PL, ROUND ROCK, TX 78681
0.00 mi 99% similar Same subdivision
4 bed 4 bath 2,930 sqft Built 2020
Raw Value $738,952
Adjusted Value $582,725

Adjusted -$158,053 for 713 sqft less living space and +$1,826 for being newer. Net adjustment: -$156,227.

5 bed 4 bath 2,327 sqft Built 2025
Raw Value $919,808
Adjusted Value $888,120

Adjusted -$24,384 for 110 sqft less living space and -$7,304 for being older. Net adjustment: -$31,688.

5 bed 4 bath 2,103 sqft Built 2012
Raw Value $982,125
Adjusted Value $1,023,831

Adjusted +$25,271 for 114 sqft more living space and +$16,435 for being newer. Net adjustment: +$41,706.

4 bed 3 bath 2,131 sqft Built 2008
Raw Value $939,962
Adjusted Value $982,765

Adjusted +$19,064 for 86 sqft more living space and +$23,739 for being newer. Net adjustment: +$42,803.

The Neighborhood

This home is valued 4.4% 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
$546,251
Median
$523,371

This home is +4.4% above the subdivision median.

Tax Analysis

The estimated annual property tax is $11,287 across all districts. With a homestead exemption claimed, that drops to $9,715 — saving $1,572 per year. That's $810 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%$5,739
Highlands at Mayfield Ranch MUDMUD0.4850%$2,649
Williamson CountyCounty0.3694%$2,018
Williamson County ESD #9 - Round RockESD0.0999%$546
Williamson County FM/RdCounty0.0443%$242
Upper Brushy Creek WCIDWater0.0170%$93
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.0663%$11,287

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $888,120 would pay approximately $5,544 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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