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3930 STANYAN DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed3 bath2,866 sqftBuilt 2021

Property at a Glance

This home is estimated between $622,373 and $1,260,980, with a best estimate of $798,506. 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

$622,373 $1,260,980
Best Estimate
$798,506
WCAD Value
$631,563
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 $622,373 and $1,260,980. 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 $785,384

Adjusted +$210,590 for 950 sqft more living space and +$12,783 for being newer. Net adjustment: +$223,373.

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 $798,506

Adjusted +$210,590 for 950 sqft more living space and +$9,130 for being newer. Net adjustment: +$219,720.

4149 PRESIDIO LN, ROUND ROCK, TX 78681
0.00 mi 98% similar Same subdivision
3 bed 2 bath 2,248 sqft Built 2018
Raw Value $479,901
Adjusted Value $622,373

Adjusted +$136,994 for 618 sqft more living space and +$5,478 for being newer. Net adjustment: +$142,472.

5 bed 5 bath 2,711 sqft Built 2016
Raw Value $1,217,491
Adjusted Value $1,260,980

Adjusted +$34,359 for 155 sqft more living space and +$9,130 for being newer. Net adjustment: +$43,489.

4 bed 3 bath 2,219 sqft Built 2007
Raw Value $904,649
Adjusted Value $1,073,637

Adjusted +$143,423 for 647 sqft more living space and +$25,565 for being newer. Net adjustment: +$168,988.

The Neighborhood

This home is valued 20.7% 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
$631,563
Median
$523,371

This home is +20.7% above the subdivision median.

Tax Analysis

The estimated annual property tax is $13,050 across all districts. With a homestead exemption claimed, that drops to $11,462 — saving $1,588 per year. That's $955 per month a buyer should budget. The assessed value increased -3.3% vs the subdivision average of -9.3%. This above-average increase gives a protest opportunity score of 30 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Georgetown ISDSchool1.0506%$6,635
Highlands at Mayfield Ranch MUDMUD0.4850%$3,063
Williamson CountyCounty0.3694%$2,333
Williamson County ESD #9 - Round RockESD0.0999%$631
Williamson County FM/RdCounty0.0443%$280
Upper Brushy Creek WCIDWater0.0170%$107
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.0663%$13,050
30 / 100

Some opportunity.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $798,506 would pay approximately $4,984 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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