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1308 MAIN ST, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed1,856 sqftBuilt 1950

Property at a Glance

This home is estimated between $362,886 and $578,121, with a best estimate of $470,962. That places the property above the R450X - Round Rock East - Duplex median of $355,449, in a neighborhood that declined 8.7% over the past year.

Estimated Value Range

$362,886 $578,121
Best Estimate
$470,962
WCAD Value
$218,678
Low Confidence

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

There are 5 comparable properties within range, but none are in R450X - Round Rock East - Duplex. The estimated range of $362,886 and $578,121 should be treated as a rough guide.

Comparable Properties (5)

3 bed 1,483 sqft Built 1950
Raw Value $505,642
Adjusted Value $578,121

Adjusted +$72,479 for 373 sqft more living space. Net adjustment: +$72,479.

3 bed 1 bath 1,376 sqft Built 1960
Raw Value $321,405
Adjusted Value $362,886

Adjusted +$93,270 for 480 sqft more living space and -$10,002 for being older and -$41,787 for no garage. Net adjustment: +$41,481.

3 bed 2 bath 1,489 sqft Built 1978
Raw Value $469,441
Adjusted Value $470,962

Adjusted +$71,313 for 367 sqft more living space and -$28,005 for being older and -$41,787 for no garage. Net adjustment: +$1,521.

3 bed 2 bath 1,330 sqft Built 1970
Raw Value $526,682
Adjusted Value $567,100

Adjusted +$102,208 for 526 sqft more living space and -$20,003 for being older and -$41,787 for no garage. Net adjustment: +$40,418.

4 bed 3 bath 1,923 sqft Built 2012
Raw Value $568,503
Adjusted Value $451,686

Adjusted -$13,019 for 67 sqft less living space and -$62,011 for being older and -$41,787 for no garage. Net adjustment: -$116,817.

The Neighborhood

This home is valued 38.5% below the R450X - Round Rock East - Duplex median of $355,449. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 8.7% over the past year.

R450X - Round Rock East - Duplex

below average
836 Properties
$355,449 Median Value
-8.7% YoY Change
0% Have Pool
84% Have Garage
This Home
$218,678
Median
$355,449

This home is -38.5% below the subdivision median.

Tax Analysis

The estimated annual property tax is $3,935 across all districts. With a homestead exemption claimed, that drops to $2,644 — saving $1,291 per year. That's $220 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%$1,953
Round RockCity0.3720%$813
Williamson CountyCounty0.3694%$808
Austin Community Collegespecial0.1034%$226
Williamson County FM/RdCounty0.0443%$97
Upper Brushy Creek WCIDWater0.0170%$37
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$3,935

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $470,962 would pay approximately $2,940 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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