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

1804 MAYFIELD DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed2 bath1,022 sqftBuilt 1975

Property at a Glance

This home is estimated between $152,652 and $545,728, with a best estimate of $477,324. That places the property below the L580D75C - LEANDER SAM BASS AREA median of $974,644, in a neighborhood that appreciated 7.9% over the past year.

Estimated Value Range

$152,652 $545,728
Best Estimate
$477,324
WCAD Value
$651,479
High Confidence

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

Based on 5 comparable properties in L580D75C - LEANDER SAM BASS AREA, this home's estimated market value is between $152,652 and $545,728. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

MAYFIELD DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,650 sqft Built 1975
Raw Value $795,305
Adjusted Value $545,728

Adjusted -$249,577 for 628 sqft less living space. Net adjustment: -$249,577.

1900 MAYFIELD DR, ROUND ROCK, TX 78681
0.00 mi 98% similar Same subdivision
4 bed 2 bath 1,994 sqft Built 1976
Raw Value $550,172
Adjusted Value $152,652

Adjusted -$386,288 for 972 sqft less living space and -$11,232 for being older. Net adjustment: -$397,520.

2005 MAYFIELD DR, ROUND ROCK, TX 78681
0.00 mi 97% similar Same subdivision
3 bed 2 bath 1,594 sqft Built 1980
Raw Value $783,751
Adjusted Value $500,270

Adjusted -$227,322 for 572 sqft less living space and -$56,159 for being older. Net adjustment: -$283,481.

2202 MAYFIELD DR, ROUND ROCK, TX 78681
0.00 mi 93% similar Same subdivision
3 bed 2 bath 1,895 sqft Built 1980
Raw Value $686,887
Adjusted Value $283,784

Adjusted -$346,944 for 873 sqft less living space and -$56,159 for being older. Net adjustment: -$403,103.

2104 MAYFIELD DR, ROUND ROCK, TX 78681
0.00 mi 90% similar Same subdivision
3 bed 2 bath 2,279 sqft Built 1980
Raw Value $1,033,034
Adjusted Value $477,324

Adjusted -$499,551 for 1,257 sqft less living space and -$56,159 for being older. Net adjustment: -$555,710.

The Neighborhood

This home is valued 33.2% below the L580D75C - LEANDER SAM BASS AREA median of $974,644. That positions it competitively for buyers comparing within the neighborhood. The neighborhood appreciated 7.9% over the past year.

L580D75C - LEANDER SAM BASS AREA

below average
397 Properties
$974,644 Median Value
+7.9% YoY Change
6% Have Pool
81% Have Garage
This Home
$651,479
Median
$974,644

This home is -33.2% below the subdivision median.

Tax Analysis

The estimated annual property tax is $9,950 across all districts. With a homestead exemption claimed, that drops to $8,579 — saving $1,371 per year. That's $715 per month a buyer should budget. The assessed value increased +14.3% vs the subdivision average of +7.9%. This above-average increase gives a protest opportunity score of 62 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$5,818
Williamson CountyCounty0.3694%$2,407
Austin Community Collegespecial0.1034%$674
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$651
Williamson County FM/RdCounty0.0443%$289
Upper Brushy Creek WCIDWater0.0170%$111
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.5273%$9,950
62 / 100

Moderate opportunity to protest.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $477,324 would pay approximately $2,979 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