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3810 MAYFIELD RANCH BLVD, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath1,261 sqftBuilt 2005

Property at a Glance

This home is estimated between $262,366 and $434,087, with a best estimate of $331,698. That places the property below the R107503F - PRESERVE AT STONE OAK - PH 3 & 4 median of $368,194, in a neighborhood that declined 10.9% over the past year.

Estimated Value Range

$262,366 $434,087
Best Estimate
$331,698
WCAD Value
$378,400
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 $262,366 and $434,087. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

3880 MAYFIELD RANCH BLVD, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 959 sqft Built 2005
Raw Value $372,608
Adjusted Value $434,087

Adjusted +$61,479 for 302 sqft more living space. Net adjustment: +$61,479.

3870 MAYFIELD RANCH BLVD, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,726 sqft Built 2005
Raw Value $357,028
Adjusted Value $262,366

Adjusted -$94,662 for 465 sqft less living space. Net adjustment: -$94,662.

3890 MAYFIELD RANCH BLVD, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,120 sqft Built 2005
Raw Value $379,035
Adjusted Value $407,739

Adjusted +$28,704 for 141 sqft more living space. Net adjustment: +$28,704.

3 bed 2 bath 1,756 sqft Built 2021
Raw Value $410,055
Adjusted Value $331,698

Adjusted -$100,769 for 495 sqft less living space and +$22,412 for being newer. Net adjustment: -$78,357.

3 bed 2 bath 1,791 sqft Built 2021
Raw Value $413,162
Adjusted Value $327,680

Adjusted -$107,894 for 530 sqft less living space and +$22,412 for being newer. Net adjustment: -$85,482.

The Neighborhood

This home is valued 2.8% above the R107503F - PRESERVE AT STONE OAK - PH 3 & 4 median of $368,194. With 1,045 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 10.9% over the past year.

R107503F - PRESERVE AT STONE OAK - PH 3 & 4

typical
1,045 Properties
$368,194 Median Value
-10.9% YoY Change
1% Have Pool
99% Have Garage
This Home
$378,400
Median
$368,194

This home is +2.8% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,808 across all districts. With a homestead exemption claimed, that drops to $5,488 — saving $1,320 per year. That's $457 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
Round Rock ISDSchool0.8931%$3,379
Round RockCity0.3720%$1,408
Williamson CountyCounty0.3694%$1,398
Austin Community Collegespecial0.1034%$391
Williamson County FM/RdCounty0.0443%$168
Upper Brushy Creek WCIDWater0.0170%$64
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$6,808

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $331,698 would pay approximately $2,070 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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