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624 CIRCLE DR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

4 bed1 bath1,440 sqftBuilt 1940

Property at a Glance

This home is estimated between $326,733 and $537,199, with a best estimate of $487,578. 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

$326,733 $537,199
Best Estimate
$487,578
WCAD Value
$539,512
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 $326,733 and $537,199. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

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 $537,199

Adjusted +$32,865 for 128 sqft more living space and +$124,420 for having a garage. Net adjustment: +$157,285.

1414 CIRCLE DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 1 bath 1,348 sqft Built 1950
Raw Value $209,614
Adjusted Value $326,733

Adjusted +$23,622 for 92 sqft more living space and -$30,923 for being older and +$124,420 for having a garage. Net adjustment: +$117,119.

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 $344,956

Adjusted +$24,906 for 97 sqft more living space and -$90,802 for no pool. Net adjustment: -$65,896.

616 CIRCLE AVE, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
2 bed 1 bath 1,500 sqft Built 1940
Raw Value $416,758
Adjusted Value $525,772

Adjusted -$15,406 for 60 sqft less living space and +$124,420 for having a garage. Net adjustment: +$109,014.

613 CIRCLE AVE, ROUND ROCK, TX 78664
0.00 mi 99% similar Same subdivision
2 bed 1 bath 1,268 sqft Built 1940
Raw Value $318,995
Adjusted Value $487,578

Adjusted +$44,163 for 172 sqft more living space and +$124,420 for having a garage. Net adjustment: +$168,583.

The Neighborhood

This home is valued 69.0% 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

outlier high
360 Properties
$319,256 Median Value
+4.3% YoY Change
5% Have Pool
24% Have Garage
This Home
$539,512
Median
$319,256

This home is +69.0% above the subdivision median.

Tax Analysis

The estimated annual property tax is $8,013 across all districts. With a homestead exemption claimed, that drops to $6,680 — saving $1,333 per year. That's $557 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%$3,977
Round RockCity0.3720%$1,657
Williamson CountyCounty0.3694%$1,645
Austin Community Collegespecial0.1034%$460
Williamson County FM/RdCounty0.0443%$197
Upper Brushy Creek WCIDWater0.0170%$76
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$8,013

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $487,578 would pay approximately $3,043 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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