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1510 MAIN ST E, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

2 bed1 bath981 sqftBuilt 1940

Property at a Glance

This home is estimated between $80,680 and $173,299, with a best estimate of $123,746. That places the property below the R701575F - OLD TOWN ROUND ROCK median of $319,256, in a neighborhood that appreciated 4.3% over the past year.

Estimated Value Range

$80,680 $173,299
Best Estimate
$123,746
WCAD Value
$191,325
High Confidence

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

Based on 5 comparable properties in R701575F - OLD TOWN ROUND ROCK, this home's estimated market value is between $80,680 and $173,299. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

1305 MAIN AVE E, ROUND ROCK, TX 78664
0.00 mi 94% similar Same subdivision
2 bed 1 bath 1,150 sqft Built 1979
Raw Value $259,289
Adjusted Value $95,295

Adjusted -$43,393 for 169 sqft less living space and -$120,601 for being older. Net adjustment: -$163,994.

1504 MAIN AVE E, ROUND ROCK, TX 78664
0.00 mi 94% similar Same subdivision
2 bed 1 bath 1,056 sqft Built 1950
Raw Value $197,951
Adjusted Value $147,771

Adjusted -$19,257 for 75 sqft less living space and -$30,923 for being older. Net adjustment: -$50,180.

1508 MAIN AVE E, ROUND ROCK, TX 78664
0.00 mi 93% similar Same subdivision
2 bed 1 bath 904 sqft Built 1950
Raw Value $184,451
Adjusted Value $173,299

Adjusted +$19,771 for 77 sqft more living space and -$30,923 for being older. Net adjustment: -$11,152.

1507 MAIN AVE E, ROUND ROCK, TX 78664
0.00 mi 90% similar Same subdivision
2 bed 1 bath 864 sqft Built 1955
Raw Value $140,090
Adjusted Value $123,746

Adjusted +$30,041 for 117 sqft more living space and -$46,385 for being older. Net adjustment: -$16,344.

1407 MAIN AVE E, ROUND ROCK, TX 78664
0.00 mi 88% similar Same subdivision
2 bed 1 bath 924 sqft Built 1965
Raw Value $143,353
Adjusted Value $80,680

Adjusted +$14,635 for 57 sqft more living space and -$77,308 for being older. Net adjustment: -$62,673.

The Neighborhood

This home is valued 40.1% below the R701575F - OLD TOWN ROUND ROCK median of $319,256. That positions it competitively for buyers comparing within the neighborhood. The neighborhood appreciated 4.3% over the past year.

R701575F - OLD TOWN ROUND ROCK

below average
360 Properties
$319,256 Median Value
+4.3% YoY Change
5% Have Pool
24% Have Garage
This Home
$191,325
Median
$319,256

This home is -40.1% below the subdivision median.

Tax Analysis

The estimated annual property tax is $3,442 across all districts. With a homestead exemption claimed, that drops to $2,157 — saving $1,285 per year. That's $180 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%$1,709
Round RockCity0.3720%$712
Williamson CountyCounty0.3694%$707
Austin Community Collegespecial0.1034%$198
Williamson County FM/RdCounty0.0443%$85
Upper Brushy Creek WCIDWater0.0170%$33
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$3,442

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $123,746 would pay approximately $772 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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