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604 RUBIO AVE, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath936 sqftBuilt 1940

Property at a Glance

This home is estimated between $155,689 and $220,135, with a best estimate of $195,323. 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

$155,689 $220,135
Best Estimate
$195,323
WCAD Value
$134,312
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 $155,689 and $220,135. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

704 RUBIO AVE, ROUND ROCK, TX 78664
0.00 mi 96% similar Same subdivision
2 bed 1 bath 789 sqft Built 1940
Raw Value $157,579
Adjusted Value $195,323

Adjusted +$37,744 for 147 sqft more living space. Net adjustment: +$37,744.

503 RUBIO AVE, ROUND ROCK, TX 78664
0.00 mi 96% similar Same subdivision
3 bed 1 bath 1,292 sqft Built 1940
Raw Value $247,096
Adjusted Value $155,689

Adjusted -$91,407 for 356 sqft less living space. Net adjustment: -$91,407.

603 RUBIO AVE, ROUND ROCK, TX 78664
0.00 mi 95% similar Same subdivision
2 bed 1 bath 904 sqft Built 1940
Raw Value $211,919
Adjusted Value $220,135

Adjusted +$8,216 for 32 sqft more living space. Net adjustment: +$8,216.

504 RUBIO AVE, ROUND ROCK, TX 78664
0.00 mi 92% similar Same subdivision
2 bed 1 bath 1,050 sqft Built 1955
Raw Value $248,772
Adjusted Value $173,116

Adjusted -$29,271 for 114 sqft less living space and -$46,385 for being older. Net adjustment: -$75,656.

502 RUBIO AVE, ROUND ROCK, TX 78664
0.00 mi 89% similar Same subdivision
1 bed 1 bath 720 sqft Built 1940
Raw Value $155,212
Adjusted Value $210,672

Adjusted +$55,460 for 216 sqft more living space. Net adjustment: +$55,460.

The Neighborhood

This home is valued 57.9% 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

outlier low
360 Properties
$319,256 Median Value
+4.3% YoY Change
5% Have Pool
24% Have Garage
This Home
$134,312
Median
$319,256

This home is -57.9% below the subdivision median.

Tax Analysis

The estimated annual property tax is $2,417 across all districts. With a homestead exemption claimed, that drops to $1,192 — saving $1,225 per year. That's $99 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%$1,200
Round RockCity0.3720%$500
Williamson CountyCounty0.3694%$496
Austin Community Collegespecial0.1034%$139
Williamson County FM/RdCounty0.0443%$60
Upper Brushy Creek WCIDWater0.0170%$23
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$2,417

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $195,323 would pay approximately $1,219 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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