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3880 MAYFIELD RANCH BLVD, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath959 sqftBuilt 2005

Property at a Glance

This home is estimated between $200,887 and $596,631, with a best estimate of $316,921. 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

$200,887 $596,631
Best Estimate
$316,921
WCAD Value
$372,608
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 $200,887 and $596,631. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

3810 MAYFIELD RANCH BLVD, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,261 sqft Built 2005
Raw Value $378,400
Adjusted Value $316,921

Adjusted -$61,479 for 302 sqft less living space. Net adjustment: -$61,479.

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 $346,260

Adjusted -$32,775 for 161 sqft less living space. Net adjustment: -$32,775.

3870 MAYFIELD RANCH BLVD, ROUND ROCK, TX 78681
0.00 mi 99% similar Same subdivision
3 bed 2 bath 1,726 sqft Built 2005
Raw Value $357,028
Adjusted Value $200,887

Adjusted -$156,141 for 767 sqft less living space. Net adjustment: -$156,141.

4 bed 2 bath 1,022 sqft Built 1975
Raw Value $651,479
Adjusted Value $596,631

Adjusted -$12,825 for 63 sqft less living space and -$42,023 for being older. Net adjustment: -$54,848.

3 bed 2 bath 1,756 sqft Built 2021
Raw Value $410,055
Adjusted Value $270,219

Adjusted -$162,248 for 797 sqft less living space and +$22,412 for being newer. Net adjustment: -$139,836.

The Neighborhood

This home is valued 1.2% 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
$372,608
Median
$368,194

This home is +1.2% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,704 across all districts. With a homestead exemption claimed, that drops to $5,385 — saving $1,319 per year. That's $449 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%$3,328
Round RockCity0.3720%$1,386
Williamson CountyCounty0.3694%$1,377
Austin Community Collegespecial0.1034%$385
Williamson County FM/RdCounty0.0443%$165
Upper Brushy Creek WCIDWater0.0170%$63
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$6,704

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $316,921 would pay approximately $1,978 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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