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778 WHITETAIL DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath2,890 sqftBuilt 2020

Property at a Glance

This home is estimated between $547,061 and $900,851, with a best estimate of $788,878. 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

$547,061 $900,851
Best Estimate
$788,878
WCAD Value
$621,868
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 $547,061 and $900,851. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

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 $625,867

Adjusted +$142,314 for 642 sqft more living space and +$3,652 for being newer. Net adjustment: +$145,966.

3 bed 2 bath 3,097 sqft Built 2000
Raw Value $556,425
Adjusted Value $547,061

Adjusted -$45,886 for 207 sqft less living space and +$36,522 for being newer. Net adjustment: -$9,364.

3 bed 2 bath 2,221 sqft Built 2014
Raw Value $741,595
Adjusted Value $900,851

Adjusted +$148,299 for 669 sqft more living space and +$10,957 for being newer. Net adjustment: +$159,256.

3601 BAINBRIDGE ST, ROUND ROCK, TX 78681
0.00 mi 93% similar Same subdivision
4 bed 3 bath 1,916 sqft Built 2016
Raw Value $578,786
Adjusted Value $802,000

Adjusted +$215,910 for 974 sqft more living space and +$7,304 for being newer. Net adjustment: +$223,214.

3736 BAINBRIDGE ST, ROUND ROCK, TX 78681
0.00 mi 92% similar Same subdivision
4 bed 3 bath 1,916 sqft Built 2014
Raw Value $562,011
Adjusted Value $788,878

Adjusted +$215,910 for 974 sqft more living space and +$10,957 for being newer. Net adjustment: +$226,867.

The Neighborhood

This home is valued 18.8% 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
$621,868
Median
$523,371

This home is +18.8% above the subdivision median.

Tax Analysis

The estimated annual property tax is $12,850 across all districts. With a homestead exemption claimed, that drops to $11,264 — saving $1,586 per year. That's $939 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%$6,533
Highlands at Mayfield Ranch MUDMUD0.4850%$3,016
Williamson CountyCounty0.3694%$2,297
Williamson County ESD #9 - Round RockESD0.0999%$621
Williamson County FM/RdCounty0.0443%$276
Upper Brushy Creek WCIDWater0.0170%$106
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.0663%$12,850

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $788,878 would pay approximately $4,924 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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