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702 MAIN AVE E, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath1,818 sqftBuilt 1920

Property at a Glance

This home is estimated between $318,609 and $706,598, with a best estimate of $550,139. That places the property above the R703T14G - Round Rock Historical median of $404,269, in a neighborhood that appreciated 33.1% over the past year.

Estimated Value Range

$318,609 $706,598
Best Estimate
$550,139
WCAD Value
$706,832
High Confidence

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

Based on 5 comparable properties in R703T14G - Round Rock Historical, this home's estimated market value is between $318,609 and $706,598. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

702 MAIN AVE E, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,818 sqft Built 1920
Raw Value $687,027
Adjusted Value $687,027

This comparable closely matches the subject property's features.

808 MAIN AVE E, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,510 sqft Built 1930
Raw Value $658,171
Adjusted Value $706,598

Adjusted +$97,044 for 308 sqft more living space and +$58,909 for being newer and -$107,526 for no garage. Net adjustment: +$48,427.

702 MAIN AVE E, ROUND ROCK, TX 78664
0.00 mi 95% similar Same subdivision
4 bed 1,818 sqft Built 1920
Raw Value $509,285
Adjusted Value $509,285

This comparable closely matches the subject property's features.

701 E MAIN ST, ROUND ROCK, TX 78664
0.00 mi 91% similar Same subdivision
2 bed 1 bath 1,542 sqft Built 1930
Raw Value $404,269
Adjusted Value $550,139

Adjusted +$86,961 for 276 sqft more living space and +$58,909 for being newer. Net adjustment: +$145,870.

507 MAIN AVE E, ROUND ROCK, TX 78664
0.00 mi 89% similar Same subdivision
4 bed 3 bath 2,735 sqft Built 1920
Raw Value $607,535
Adjusted Value $318,609

Adjusted -$288,926 for 917 sqft less living space. Net adjustment: -$288,926.

The Neighborhood

This home is valued 74.8% above the R703T14G - Round Rock Historical median of $404,269. With 59 homes in the subdivision, the property sits in the upper tier. The neighborhood appreciated 33.1% over the past year.

R703T14G - Round Rock Historical

outlier high
59 Properties
$404,269 Median Value
+33.1% YoY Change
9% Have Pool
14% Have Garage
This Home
$706,832
Median
$404,269

This home is +74.8% above the subdivision median.

Tax Analysis

The estimated annual property tax is $10,088 across all districts. With a homestead exemption claimed, that drops to $8,708 — saving $1,380 per year. That's $726 per month a buyer should budget. The assessed value increased +15.6% vs the subdivision average of +33.1%. This increase gives a protest opportunity score of 40 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$6,313
Williamson CountyCounty0.3694%$2,611
Austin Community Collegespecial0.1034%$731
Williamson County FM/RdCounty0.0443%$313
Upper Brushy Creek WCIDWater0.0170%$120
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.4273%$10,088
40 / 100

Moderate opportunity to protest.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $550,139 would pay approximately $3,434 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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