Beta Williamson County, TX only — data and coverage are limited during early access.

1510 CIRCLE DR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

2 bed1 bath1,144 sqftBuilt 1950

Property at a Glance

This home is estimated between $147,174 and $447,449, with a best estimate of $304,905. 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

$147,174 $447,449
Best Estimate
$304,905
WCAD Value
$268,561
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 $147,174 and $447,449. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

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 $147,174

Adjusted +$26,703 for 104 sqft more living space and -$124,420 for no garage. Net adjustment: -$97,717.

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 $447,449

Adjusted +$39,028 for 152 sqft more living space and +$30,923 for being newer. Net adjustment: +$69,951.

620 CIRCLE AVE, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
2 bed 1 bath 910 sqft Built 1940
Raw Value $338,320
Adjusted Value $304,905

Adjusted +$60,082 for 234 sqft more living space and +$30,923 for being newer and -$124,420 for no garage. Net adjustment: -$33,415.

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 $367,701

Adjusted -$43,136 for 168 sqft less living space and +$30,923 for being newer. Net adjustment: -$12,213.

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 $157,235

Adjusted -$52,379 for 204 sqft less living space. Net adjustment: -$52,379.

The Neighborhood

This home is valued 15.9% 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

below average
360 Properties
$319,256 Median Value
+4.3% YoY Change
5% Have Pool
24% Have Garage
This Home
$268,561
Median
$319,256

This home is -15.9% below the subdivision median.

Tax Analysis

The estimated annual property tax is $4,832 across all districts. With a homestead exemption claimed, that drops to $3,532 — saving $1,300 per year. That's $294 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%$2,399
Round RockCity0.3720%$999
Williamson CountyCounty0.3694%$992
Austin Community Collegespecial0.1034%$278
Williamson County FM/RdCounty0.0443%$119
Upper Brushy Creek WCIDWater0.0170%$46
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$4,832

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $304,905 would pay approximately $1,903 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.

View full property details