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2121 MAYS ST N, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2,690 sqftBuilt 1975

Property at a Glance

This home is estimated between $516,863 and $814,129, with a best estimate of $643,277. That places the property below the R20PS - Small Office(<10,000 Sf)-e Round Rock median of $1,404,458, in a neighborhood that declined 0.2% over the past year.

Estimated Value Range

$516,863 $814,129
Best Estimate
$643,277
WCAD Value
$1,397,724
Low Confidence

Based on 5 comparable properties(1 in the same subdivision)

There are 5 comparable properties within range, but few are in R20PS - Small Office(<10,000 Sf)-e Round Rock. The estimated range of $516,863 and $814,129 should be treated as a rough guide.

Comparable Properties (5)

2119 MAYS ST N, ROUND ROCK, TX 78664
0.03 mi 98% similar Same subdivision
3 bed 2,517 sqft Built 1980
Raw Value $761,801
Adjusted Value $814,129

Adjusted +$52,328 for 173 sqft more living space. Net adjustment: +$52,328.

3 bed 3 bath 2,102 sqft Built 1985
Raw Value $351,865
Adjusted Value $529,720

Adjusted +$177,855 for 588 sqft more living space. Net adjustment: +$177,855.

3 bed 2 bath 1,946 sqft Built 1983
Raw Value $352,015
Adjusted Value $516,863

Adjusted +$225,041 for 744 sqft more living space and -$60,193 for no garage. Net adjustment: +$164,848.

3 bed 2 bath 2,144 sqft Built 1990
Raw Value $609,251
Adjusted Value $714,209

Adjusted +$165,151 for 546 sqft more living space and -$60,193 for no garage. Net adjustment: +$104,958.

3 bed 2 bath 1,707 sqft Built 1976
Raw Value $412,372
Adjusted Value $643,277

Adjusted +$297,333 for 983 sqft more living space and -$6,235 for no pool and -$60,193 for no garage. Net adjustment: +$230,905.

The Neighborhood

This home is in line with the R20PS - Small Office(<10,000 Sf)-e Round Rock median of $1,404,458. Note that values in this subdivision declined 0.2% over the past year.

R20PS - Small Office(<10,000 Sf)-e Round Rock

typical
10 Properties
$1,404,458 Median Value
-0.2% YoY Change
0% Have Pool
0% Have Garage
This Home
$1,397,724
Median
$1,404,458

This home is -0.5% below the subdivision median.

Tax Analysis

The estimated annual property tax is $25,149 across all districts. With a homestead exemption claimed, that drops to $23,640 — saving $1,509 per year. That's $1,970 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%$12,483
Round RockCity0.3720%$5,200
Williamson CountyCounty0.3694%$5,164
Austin Community Collegespecial0.1034%$1,445
Williamson County FM/RdCounty0.0443%$620
Upper Brushy Creek WCIDWater0.0170%$238
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$25,149

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $643,277 would pay approximately $4,015 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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