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600 CIRCLE AVE, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed1,792 sqftBuilt 1940

Property at a Glance

This home is estimated between $292,693 and $505,472, with a best estimate of $491,732. 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

$292,693 $505,472
Best Estimate
$491,732
WCAD Value
$444,157
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 $292,693 and $505,472. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

1512 CIRCLE DR, ROUND ROCK, TX 78664
0.00 mi 98% similar Same subdivision
2 bed 1 bath 1,600 sqft Built 1950
Raw Value $319,135
Adjusted Value $337,510

Adjusted +$49,298 for 192 sqft more living space and -$30,923 for being older. Net adjustment: +$18,375.

616 CIRCLE AVE, ROUND ROCK, TX 78664
0.00 mi 96% similar Same subdivision
2 bed 1 bath 1,500 sqft Built 1940
Raw Value $416,758
Adjusted Value $491,732

Adjusted +$74,974 for 292 sqft more living space. Net adjustment: +$74,974.

624 CIRCLE DR, ROUND ROCK, TX 78664
0.00 mi 93% similar Same subdivision
4 bed 1 bath 1,440 sqft Built 1940
Raw Value $539,512
Adjusted Value $505,472

Adjusted +$90,380 for 352 sqft more living space and -$124,420 for no garage. Net adjustment: -$34,040.

606 CIRCLE AVE, ROUND ROCK, TX 78664
0.00 mi 91% similar Same subdivision
2 bed 1 bath 1,312 sqft Built 1940
Raw Value $379,914
Adjusted Value $503,159

Adjusted +$123,245 for 480 sqft more living space. Net adjustment: +$123,245.

1414 CIRCLE DR, ROUND ROCK, TX 78664
0.00 mi 89% similar Same subdivision
3 bed 1 bath 1,348 sqft Built 1950
Raw Value $209,614
Adjusted Value $292,693

Adjusted +$114,002 for 444 sqft more living space and -$30,923 for being older. Net adjustment: +$83,079.

The Neighborhood

This home is valued 39.1% 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

above average
360 Properties
$319,256 Median Value
+4.3% YoY Change
5% Have Pool
24% Have Garage
This Home
$444,157
Median
$319,256

This home is +39.1% above the subdivision median.

Tax Analysis

The estimated annual property tax is $7,832 across all districts. With a homestead exemption claimed, that drops to $6,501 — saving $1,331 per year. That's $542 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%$3,888
Round RockCity0.3720%$1,619
Williamson CountyCounty0.3694%$1,608
Austin Community Collegespecial0.1034%$450
Williamson County FM/RdCounty0.0443%$193
Upper Brushy Creek WCIDWater0.0170%$74
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$7,832

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $491,732 would pay approximately $3,069 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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