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616 CIRCLE AVE, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

2 bed1 bath1,500 sqftBuilt 1940

Property at a Glance

This home is estimated between $235,941 and $507,933, with a best estimate of $428,185. 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

$235,941 $507,933
Best Estimate
$428,185
WCAD Value
$416,758
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 $235,941 and $507,933. 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 100% similar Same subdivision
2 bed 1 bath 1,600 sqft Built 1950
Raw Value $319,135
Adjusted Value $262,536

Adjusted -$25,676 for 100 sqft less living space and -$30,923 for being older. Net adjustment: -$56,599.

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 $507,933

Adjusted +$130,435 for 508 sqft more living space. Net adjustment: +$130,435.

606 CIRCLE AVE, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
2 bed 1 bath 1,312 sqft Built 1940
Raw Value $379,914
Adjusted Value $428,185

Adjusted +$48,271 for 188 sqft more living space. Net adjustment: +$48,271.

621 CIRCLE AVE, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
1 bed 1 bath 1,343 sqft Built 1940
Raw Value $410,852
Adjusted Value $235,941

Adjusted +$40,311 for 157 sqft more living space and -$90,802 for no pool and -$124,420 for no garage. Net adjustment: -$174,911.

624 CIRCLE DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 1 bath 1,440 sqft Built 1940
Raw Value $539,512
Adjusted Value $430,498

Adjusted +$15,406 for 60 sqft more living space and -$124,420 for no garage. Net adjustment: -$109,014.

The Neighborhood

This home is valued 30.5% 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
$416,758
Median
$319,256

This home is +30.5% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,755 across all districts. With a homestead exemption claimed, that drops to $5,435 — saving $1,320 per year. That's $453 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%$3,353
Round RockCity0.3720%$1,397
Williamson CountyCounty0.3694%$1,387
Austin Community Collegespecial0.1034%$388
Williamson County FM/RdCounty0.0443%$166
Upper Brushy Creek WCIDWater0.0170%$64
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$6,755

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $428,185 would pay approximately $2,673 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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