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

1400 CIRCLE DR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

2 bed1 bath600 sqftBuilt 1975

Property at a Glance

This home is estimated between $-79,197 and $83,997, with a best estimate of $-2,674. 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

$-79,197 $83,997
Best Estimate
$-2,674
WCAD Value
$150,788
Low Confidence

Based on 5 comparable properties(1 in the same subdivision)

There are 5 comparable properties within range, but few are in R701575F - OLD TOWN ROUND ROCK. The estimated range of $-79,197 and $83,997 should be treated as a rough guide.

Comparable Properties (5)

1400 MAIN AVE E, ROUND ROCK, TX 78664
0.00 mi 89% similar Same subdivision
2 bed 1 bath 1,120 sqft Built 1996
Raw Value $243,678
Adjusted Value $-79,197

Adjusted -$133,516 for 520 sqft less living space and -$64,939 for being older and -$124,420 for no garage. Net adjustment: -$322,875.

2 bed 2 bath 1,416 sqft Built 1984
Raw Value $318,533
Adjusted Value $-43,235

Adjusted -$209,517 for 816 sqft less living space and -$27,831 for being older and -$124,420 for no garage. Net adjustment: -$361,768.

2 bed 2 bath 1,387 sqft Built 1979
Raw Value $336,186
Adjusted Value $-2,674

Adjusted -$202,071 for 787 sqft less living space and -$12,369 for being older and -$124,420 for no garage. Net adjustment: -$338,860.

3 bed 2 bath 986 sqft Built 1984
Raw Value $335,358
Adjusted Value $83,997

Adjusted -$99,110 for 386 sqft less living space and -$27,831 for being older and -$124,420 for no garage. Net adjustment: -$251,361.

3 bed 2 bath 818 sqft Built 2002
Raw Value $309,789
Adjusted Value $45,902

Adjusted -$55,974 for 218 sqft less living space and -$83,493 for being older and -$124,420 for no garage. Net adjustment: -$263,887.

The Neighborhood

This home is valued 52.8% 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

outlier low
360 Properties
$319,256 Median Value
+4.3% YoY Change
5% Have Pool
24% Have Garage
This Home
$150,788
Median
$319,256

This home is -52.8% below the subdivision median.

Tax Analysis

The estimated annual property tax is $2,713 across all districts. With a homestead exemption claimed, that drops to $1,435 — saving $1,278 per year. That's $120 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%$1,347
Round RockCity0.3720%$561
Williamson CountyCounty0.3694%$557
Austin Community Collegespecial0.1034%$156
Williamson County FM/RdCounty0.0443%$67
Upper Brushy Creek WCIDWater0.0170%$26
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$2,713

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $-2,674 would pay approximately $-17 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