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4300 MAYFIELD RANCH BLVD, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath1,724 sqftBuilt 2021

Property at a Glance

This home is estimated between $375,971 and $537,353, with a best estimate of $398,310. 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

$375,971 $537,353
Best Estimate
$398,310
WCAD Value
$554,884
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 $375,971 and $537,353. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

4348 MAYFIELD RANCH BLVD, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,962 sqft Built 2020
Raw Value $434,891
Adjusted Value $383,959

Adjusted -$52,758 for 238 sqft less living space and +$1,826 for being newer. Net adjustment: -$50,932.

4340 MAYFIELD RANCH BLVD, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,756 sqft Built 2021
Raw Value $410,055
Adjusted Value $402,961

Adjusted -$7,094 for 32 sqft less living space. Net adjustment: -$7,094.

4323 MAYFIELD RANCH BLVD, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,181 sqft Built 2021
Raw Value $477,276
Adjusted Value $375,971

Adjusted -$101,305 for 457 sqft less living space. Net adjustment: -$101,305.

4352 MAYFIELD RANCH BLVD, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,004 sqft Built 2020
Raw Value $597,596
Adjusted Value $537,353

Adjusted -$62,069 for 280 sqft less living space and +$1,826 for being newer. Net adjustment: -$60,243.

4309 MAYFIELD RANCH BLVD, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,791 sqft Built 2021
Raw Value $413,162
Adjusted Value $398,310

Adjusted -$14,852 for 67 sqft less living space. Net adjustment: -$14,852.

The Neighborhood

This home is valued 6.0% 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

typical
1,093 Properties
$523,371 Median Value
-9.3% YoY Change
1% Have Pool
100% Have Garage
This Home
$554,884
Median
$523,371

This home is +6.0% above the subdivision median.

Tax Analysis

The estimated annual property tax is $11,465 across all districts. With a homestead exemption claimed, that drops to $9,892 — saving $1,573 per year. That's $824 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%$5,830
Highlands at Mayfield Ranch MUDMUD0.4850%$2,691
Williamson CountyCounty0.3694%$2,050
Williamson County ESD #9 - Round RockESD0.0999%$554
Williamson County FM/RdCounty0.0443%$246
Upper Brushy Creek WCIDWater0.0170%$94
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.0663%$11,465

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $398,310 would pay approximately $2,486 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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