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3825 STANYAN DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed3 bath2,950 sqftBuilt 2021

Property at a Glance

This home is estimated between $640,994 and $1,279,601, with a best estimate of $817,126. 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

$640,994 $1,279,601
Best Estimate
$817,126
WCAD Value
$649,391
Medium Confidence

Based on 5 comparable properties(3 in the same subdivision)

Based on 5 comparable properties (3 in the same subdivision, 2 nearby), the estimated range is $640,994 and $1,279,601. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

3601 BAINBRIDGE ST, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,916 sqft Built 2016
Raw Value $578,786
Adjusted Value $817,126

Adjusted +$229,210 for 1,034 sqft more living space and +$9,130 for being newer. Net adjustment: +$238,340.

3736 BAINBRIDGE ST, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,916 sqft Built 2014
Raw Value $562,011
Adjusted Value $804,004

Adjusted +$229,210 for 1,034 sqft more living space and +$12,783 for being newer. Net adjustment: +$241,993.

4149 PRESIDIO LN, ROUND ROCK, TX 78681
0.00 mi 97% similar Same subdivision
3 bed 2 bath 2,248 sqft Built 2018
Raw Value $479,901
Adjusted Value $640,994

Adjusted +$155,615 for 702 sqft more living space and +$5,478 for being newer. Net adjustment: +$161,093.

5 bed 5 bath 2,711 sqft Built 2016
Raw Value $1,217,491
Adjusted Value $1,279,601

Adjusted +$52,980 for 239 sqft more living space and +$9,130 for being newer. Net adjustment: +$62,110.

4 bed 3 bath 2,219 sqft Built 2007
Raw Value $904,649
Adjusted Value $1,092,257

Adjusted +$162,043 for 731 sqft more living space and +$25,565 for being newer. Net adjustment: +$187,608.

The Neighborhood

This home is valued 24.1% 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
$649,391
Median
$523,371

This home is +24.1% above the subdivision median.

Tax Analysis

The estimated annual property tax is $13,418 across all districts. With a homestead exemption claimed, that drops to $11,827 — saving $1,591 per year. That's $986 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%$6,823
Highlands at Mayfield Ranch MUDMUD0.4850%$3,150
Williamson CountyCounty0.3694%$2,399
Williamson County ESD #9 - Round RockESD0.0999%$649
Williamson County FM/RdCounty0.0443%$288
Upper Brushy Creek WCIDWater0.0170%$110
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.0663%$13,418

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $817,126 would pay approximately $5,100 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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