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1004 MAYS ST N, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath57,778 sqftBuilt 1956

Property at a Glance

This home is estimated between $13,874,379 and $13,985,007, with a best estimate of $13,901,956. That places the property above the R20QC - CHURCH- East Round Rock median of $3,933,377, in a neighborhood that appreciated 11.4% over the past year.

Estimated Value Range

$13,874,379 $13,985,007
Best Estimate
$13,901,956
WCAD Value
$16,356,005
Low Confidence

Based on 5 comparable properties(0 in the same subdivision)

There are 5 comparable properties within range, but none are in R20QC - CHURCH- East Round Rock. The estimated range of $13,874,379 and $13,985,007 should be treated as a rough guide.

Comparable Properties (5)

3 bed 2 bath 1,563 sqft Built 1975
Raw Value $403,479
Adjusted Value $13,985,007

Adjusted +$13,573,371 for 56,215 sqft more living space and +$1,922 for being newer and +$6,235 for having a pool. Net adjustment: +$13,581,528.

3 bed 2 bath 1,469 sqft Built 1979
Raw Value $275,472
Adjusted Value $13,880,101

Adjusted +$13,596,068 for 56,309 sqft more living space and +$2,326 for being newer and +$6,235 for having a pool. Net adjustment: +$13,604,629.

3 bed 2 bath 1,366 sqft Built 1979
Raw Value $272,458
Adjusted Value $13,901,956

Adjusted +$13,620,937 for 56,412 sqft more living space and +$2,326 for being newer and +$6,235 for having a pool. Net adjustment: +$13,629,498.

3 bed 2 bath 1,524 sqft Built 1981
Raw Value $282,828
Adjusted Value $13,874,379

Adjusted +$13,582,788 for 56,254 sqft more living space and +$2,528 for being newer and +$6,235 for having a pool. Net adjustment: +$13,591,551.

3 bed 2 bath 1,234 sqft Built 1981
Raw Value $275,641
Adjusted Value $13,937,213

Adjusted +$13,652,809 for 56,544 sqft more living space and +$2,528 for being newer and +$6,235 for having a pool. Net adjustment: +$13,661,572.

The Neighborhood

This home is valued 315.8% above the R20QC - CHURCH- East Round Rock median of $3,933,377. With 8 homes in the subdivision, the property sits in the upper tier. The neighborhood appreciated 11.4% over the past year.

R20QC - CHURCH- East Round Rock

outlier high
8 Properties
$3,933,377 Median Value
+11.4% YoY Change
25% Have Pool
38% Have Garage
This Home
$16,356,005
Median
$3,933,377

This home is +315.8% above the subdivision median.

Tax Analysis

The estimated annual property tax is $294,290 across all districts. With a homestead exemption claimed, that drops to $290,018 — saving $4,272 per year. That's $24,168 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%$146,075
Round RockCity0.3720%$60,844
Williamson CountyCounty0.3694%$60,427
Austin Community Collegespecial0.1034%$16,912
Williamson County FM/RdCounty0.0443%$7,250
Upper Brushy Creek WCIDWater0.0170%$2,781
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$294,290

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $13,901,956 would pay approximately $86,776 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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