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609 MAIN ST, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

4 bed2 bath1,771 sqftBuilt 1994

Property at a Glance

This home is estimated between $473,813 and $714,130, with a best estimate of $525,608. That places the property above the R701575F - OLD TOWN ROUND ROCK median of $319,256, in a neighborhood that appreciated 4.3% over the past year.

Estimated Value Range

$473,813 $714,130
Best Estimate
$525,608
WCAD Value
$837,920
Low Confidence

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

There are 5 comparable properties within range, but few are in R701575F - OLD TOWN ROUND ROCK. The estimated range of $473,813 and $714,130 should be treated as a rough guide.

Comparable Properties (5)

4 bed 2 bath 1,692 sqft Built 2012
Raw Value $548,426
Adjusted Value $513,048

Adjusted +$20,284 for 79 sqft more living space and -$55,662 for being older. Net adjustment: -$35,378.

4 bed 2 bath 1,601 sqft Built 2012
Raw Value $537,621
Adjusted Value $525,608

Adjusted +$43,649 for 170 sqft more living space and -$55,662 for being older. Net adjustment: -$12,013.

111 STONE ST S, ROUND ROCK, TX 78664
0.01 mi 89% similar Same subdivision
3 bed 2 bath 1,330 sqft Built 1970
Raw Value $526,682
Adjusted Value $714,130

Adjusted +$113,232 for 441 sqft more living space and +$74,216 for being newer. Net adjustment: +$187,448.

4 bed 3 bath 1,628 sqft Built 2012
Raw Value $600,900
Adjusted Value $581,955

Adjusted +$36,717 for 143 sqft more living space and -$55,662 for being older. Net adjustment: -$18,945.

4 bed 3 bath 1,923 sqft Built 2012
Raw Value $568,503
Adjusted Value $473,813

Adjusted -$39,028 for 152 sqft less living space and -$55,662 for being older. Net adjustment: -$94,690.

The Neighborhood

This home is valued 162.5% above the R701575F - OLD TOWN ROUND ROCK median of $319,256. With 360 homes in the subdivision, the property sits in the upper tier. The neighborhood appreciated 4.3% over the past year.

R701575F - OLD TOWN ROUND ROCK

outlier high
360 Properties
$319,256 Median Value
+4.3% YoY Change
5% Have Pool
24% Have Garage
This Home
$837,920
Median
$319,256

This home is +162.5% above the subdivision median.

Tax Analysis

The estimated annual property tax is $15,076 across all districts. With a homestead exemption claimed, that drops to $13,671 — saving $1,405 per year. That's $1,139 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%$7,483
Round RockCity0.3720%$3,117
Williamson CountyCounty0.3694%$3,096
Austin Community Collegespecial0.1034%$866
Williamson County FM/RdCounty0.0443%$371
Upper Brushy Creek WCIDWater0.0170%$142
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$15,076

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $525,608 would pay approximately $3,281 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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