Beta Williamson County, TX only — data and coverage are limited during early access.

3209 MAYFIELD RANCH CV, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2,235 sqftBuilt 2017

Property at a Glance

This home is estimated between $382,921 and $707,424, with a best estimate of $514,656. That places the property below the L495414C - BORHO/MAYFIELD RANCH/SAPPHIRE LOOP median of $623,673, in a neighborhood that declined 8.0% over the past year.

Estimated Value Range

$382,921 $707,424
Best Estimate
$514,656
WCAD Value
$490,439
Low Confidence

Based on 5 comparable properties(2 in the same subdivision)

There are 5 comparable properties within range, but few are in L495414C - BORHO/MAYFIELD RANCH/SAPPHIRE LOOP. The estimated range of $382,921 and $707,424 should be treated as a rough guide.

Comparable Properties (5)

3 bed 2 bath 2,181 sqft Built 2021
Raw Value $477,276
Adjusted Value $485,835

Adjusted +$16,549 for 54 sqft more living space and -$7,990 for being older. Net adjustment: +$8,559.

3222 MAYFIELD RANCH CV, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2,977 sqft Built 2015
Raw Value $606,326
Adjusted Value $382,921

Adjusted -$227,400 for 742 sqft less living space and +$3,995 for being newer. Net adjustment: -$223,405.

3218 MAYFIELD RANCH CV, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 4 bath 2,250 sqft Built 2018
Raw Value $714,018
Adjusted Value $707,424

Adjusted -$4,597 for 15 sqft less living space and -$1,997 for being older. Net adjustment: -$6,594.

3 bed 2 bath 2,051 sqft Built 2021
Raw Value $466,256
Adjusted Value $514,656

Adjusted +$56,390 for 184 sqft more living space and -$7,990 for being older. Net adjustment: +$48,400.

3 bed 2 bath 2,004 sqft Built 2020
Raw Value $597,596
Adjusted Value $662,398

Adjusted +$70,794 for 231 sqft more living space and -$5,992 for being older. Net adjustment: +$64,802.

The Neighborhood

This home is valued 21.4% below the L495414C - BORHO/MAYFIELD RANCH/SAPPHIRE LOOP median of $623,673. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 8.0% over the past year.

L495414C - BORHO/MAYFIELD RANCH/SAPPHIRE LOOP

below average
427 Properties
$623,673 Median Value
-8.0% YoY Change
1% Have Pool
100% Have Garage
This Home
$490,439
Median
$623,673

This home is -21.4% below the subdivision median.

Tax Analysis

The estimated annual property tax is $8,824 across all districts. With a homestead exemption claimed, that drops to $7,483 — saving $1,341 per year. That's $624 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%$4,380
Round RockCity0.3720%$1,824
Williamson CountyCounty0.3694%$1,812
Austin Community Collegespecial0.1034%$507
Williamson County FM/RdCounty0.0443%$217
Upper Brushy Creek WCIDWater0.0170%$83
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$8,824

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $514,656 would pay approximately $3,212 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.

View full property details