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620 CIRCLE AVE, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

2 bed1 bath910 sqftBuilt 1940

Property at a Glance

This home is estimated between $180,589 and $509,685, with a best estimate of $462,622. 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

$180,589 $509,685
Best Estimate
$462,622
WCAD Value
$338,320
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 $180,589 and $509,685. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

610 CIRCLE AVE, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
2 bed 1 bath 736 sqft Built 1940
Raw Value $293,526
Adjusted Value $462,622

Adjusted +$44,676 for 174 sqft more living space and +$124,420 for having a garage. Net adjustment: +$169,096.

1416 CIRCLE DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
2 bed 1 bath 1,040 sqft Built 1950
Raw Value $244,891
Adjusted Value $180,589

Adjusted -$33,379 for 130 sqft less living space and -$30,923 for being older. Net adjustment: -$64,302.

605 CIRCLE AVE, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
2 bed 1 bath 992 sqft Built 1940
Raw Value $377,498
Adjusted Value $480,864

Adjusted -$21,054 for 82 sqft less living space and +$124,420 for having a garage. Net adjustment: +$103,366.

612 CIRCLE AVE, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
2 bed 1 bath 693 sqft Built 1940
Raw Value $272,682
Adjusted Value $452,819

Adjusted +$55,717 for 217 sqft more living space and +$124,420 for having a garage. Net adjustment: +$180,137.

625 CIRCLE AVE, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
2 bed 1 bath 1,055 sqft Built 1940
Raw Value $422,495
Adjusted Value $509,685

Adjusted -$37,230 for 145 sqft less living space and +$124,420 for having a garage. Net adjustment: +$87,190.

The Neighborhood

This home is valued 6.0% 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

typical
360 Properties
$319,256 Median Value
+4.3% YoY Change
5% Have Pool
24% Have Garage
This Home
$338,320
Median
$319,256

This home is +6.0% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,087 across all districts. With a homestead exemption claimed, that drops to $4,774 — saving $1,313 per year. That's $398 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%$3,022
Round RockCity0.3720%$1,259
Williamson CountyCounty0.3694%$1,250
Austin Community Collegespecial0.1034%$350
Williamson County FM/RdCounty0.0443%$150
Upper Brushy Creek WCIDWater0.0170%$58
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$6,087

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $462,622 would pay approximately $2,888 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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