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

1809 MAYS ST N, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed11,800 sqftBuilt 1982

Property at a Glance

This home is estimated between $2,723,001 and $3,685,662, with a best estimate of $2,814,349. That places the property above the R20SG - Service Garage-e Round Rock median of $1,591,602, in a neighborhood that appreciated 40.6% over the past year.

Estimated Value Range

$2,723,001 $3,685,662
Best Estimate
$2,814,349
WCAD Value
$2,315,912
Low Confidence

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

There are 5 comparable properties within range, but none are in R20SG - Service Garage-e Round Rock. The estimated range of $2,723,001 and $3,685,662 should be treated as a rough guide.

Comparable Properties (5)

3 bed 5,267 sqft Built 1986
Raw Value $1,592,148
Adjusted Value $3,169,976

Adjusted +$1,577,423 for 6,533 sqft more living space and +$405 for being newer. Net adjustment: +$1,577,828.

3 bed 1,100 sqft Built 1980
Raw Value $1,102,300
Adjusted Value $3,685,662

Adjusted +$2,583,564 for 10,700 sqft more living space and -$202 for being older. Net adjustment: +$2,583,362.

3 bed 2 bath 1,563 sqft Built 1975
Raw Value $403,479
Adjusted Value $2,814,349

Adjusted +$2,471,771 for 10,237 sqft more living space and -$708 for being older and -$60,193 for no garage. Net adjustment: +$2,410,870.

3 bed 2 bath 1,453 sqft Built 1982
Raw Value $301,216
Adjusted Value $2,739,354

Adjusted +$2,498,331 for 10,347 sqft more living space and -$60,193 for no garage. Net adjustment: +$2,438,138.

3 bed 2 bath 1,417 sqft Built 1982
Raw Value $276,171
Adjusted Value $2,723,001

Adjusted +$2,507,023 for 10,383 sqft more living space and -$60,193 for no garage. Net adjustment: +$2,446,830.

The Neighborhood

This home is valued 45.5% above the R20SG - Service Garage-e Round Rock median of $1,591,602. With 8 homes in the subdivision, the property sits in the upper tier. The neighborhood appreciated 40.6% over the past year.

R20SG - Service Garage-e Round Rock

above average
8 Properties
$1,591,602 Median Value
+40.6% YoY Change
0% Have Pool
0% Have Garage
This Home
$2,315,912
Median
$1,591,602

This home is +45.5% above the subdivision median.

Tax Analysis

The estimated annual property tax is $35,423 across all districts. With a homestead exemption claimed, that drops to $33,809 — saving $1,614 per year. That's $2,817 per month a buyer should budget. The assessed value increased +41.2% vs the subdivision average of +40.6%. This increase gives a protest opportunity score of 53 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$17,583
Round RockCity0.3720%$7,324
Williamson CountyCounty0.3694%$7,274
Austin Community Collegespecial0.1034%$2,036
Williamson County FM/RdCounty0.0443%$873
Upper Brushy Creek WCIDWater0.0170%$335
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$35,423
53 / 100

Moderate opportunity to protest.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $2,814,349 would pay approximately $17,567 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