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3809 STANYAN DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed3 bath2,424 sqftBuilt 2016

Property at a Glance

This home is estimated between $515,264 and $966,527, with a best estimate of $691,396. 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

$515,264 $966,527
Best Estimate
$691,396
WCAD Value
$706,763
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 $515,264 and $966,527. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

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 $678,273

Adjusted +$112,610 for 508 sqft more living space and +$3,652 for being newer. Net adjustment: +$116,262.

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 $691,396

Adjusted +$112,610 for 508 sqft more living space. Net adjustment: +$112,610.

4149 PRESIDIO LN, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,248 sqft Built 2018
Raw Value $479,901
Adjusted Value $515,264

Adjusted +$39,015 for 176 sqft more living space and -$3,652 for being older. Net adjustment: +$35,363.

4 bed 3 bath 2,219 sqft Built 2007
Raw Value $904,649
Adjusted Value $966,527

Adjusted +$45,443 for 205 sqft more living space and +$16,435 for being newer. Net adjustment: +$61,878.

4 bed 3 bath 1,811 sqft Built 2014
Raw Value $702,015
Adjusted Value $841,553

Adjusted +$135,886 for 613 sqft more living space and +$3,652 for being newer. Net adjustment: +$139,538.

The Neighborhood

This home is valued 35.0% 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
$706,763
Median
$523,371

This home is +35.0% above the subdivision median.

Tax Analysis

The estimated annual property tax is $14,604 across all districts. With a homestead exemption claimed, that drops to $13,002 — saving $1,602 per year. That's $1,084 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%$7,425
Highlands at Mayfield Ranch MUDMUD0.4850%$3,428
Williamson CountyCounty0.3694%$2,611
Williamson County ESD #9 - Round RockESD0.0999%$706
Williamson County FM/RdCounty0.0443%$313
Upper Brushy Creek WCIDWater0.0170%$120
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.0663%$14,604

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $691,396 would pay approximately $4,316 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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