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4025 MASON CV, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath2,241 sqftBuilt 2015

Property at a Glance

This home is estimated between $430,994 and $637,735, with a best estimate of $451,468. That places the property below the G799514C - MAYFIELD RANCH median of $523,371, in a neighborhood that declined 9.3% over the past year.

Estimated Value Range

$430,994 $637,735
Best Estimate
$451,468
WCAD Value
$477,050
High Confidence

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

Based on 5 comparable properties in G799514C - MAYFIELD RANCH, this home's estimated market value is between $430,994 and $637,735. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

4018 MASON CV, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,522 sqft Built 2015
Raw Value $493,284
Adjusted Value $430,994

Adjusted -$62,290 for 281 sqft less living space. Net adjustment: -$62,290.

4009 MASON CV, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 1 bath 2,560 sqft Built 2014
Raw Value $502,796
Adjusted Value $433,908

Adjusted -$70,714 for 319 sqft less living space and +$1,826 for being newer. Net adjustment: -$68,888.

4026 MASON CV, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,881 sqft Built 2015
Raw Value $557,933
Adjusted Value $637,735

Adjusted +$79,802 for 360 sqft more living space. Net adjustment: +$79,802.

4030 MASON CV, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,311 sqft Built 2016
Raw Value $482,132
Adjusted Value $464,789

Adjusted -$15,517 for 70 sqft less living space and -$1,826 for being older. Net adjustment: -$17,343.

4029 MASON CV, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,662 sqft Built 2014
Raw Value $542,966
Adjusted Value $451,468

Adjusted -$93,324 for 421 sqft less living space and +$1,826 for being newer. Net adjustment: -$91,498.

The Neighborhood

This home is valued 8.9% below the G799514C - MAYFIELD RANCH median of $523,371. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 9.3% over the past year.

G799514C - MAYFIELD RANCH

typical
1,093 Properties
$523,371 Median Value
-9.3% YoY Change
1% Have Pool
100% Have Garage
This Home
$477,050
Median
$523,371

This home is -8.9% below the subdivision median.

Tax Analysis

The estimated annual property tax is $9,857 across all districts. With a homestead exemption claimed, that drops to $8,298 — saving $1,559 per year. That's $692 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%$5,012
Highlands at Mayfield Ranch MUDMUD0.4850%$2,314
Williamson CountyCounty0.3694%$1,762
Williamson County ESD #9 - Round RockESD0.0999%$477
Williamson County FM/RdCounty0.0443%$211
Upper Brushy Creek WCIDWater0.0170%$81
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.0663%$9,857

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $451,468 would pay approximately $2,818 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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