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605 CIRCLE AVE, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

2 bed1 bath992 sqftBuilt 1940

Property at a Glance

This home is estimated between $77,223 and $359,257, with a best estimate of $297,750. 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

$77,223 $359,257
Best Estimate
$297,750
WCAD Value
$377,498
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 $77,223 and $359,257. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

610 CIRCLE AVE, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
2 bed 1 bath 736 sqft Built 1940
Raw Value $293,526
Adjusted Value $359,257

Adjusted +$65,731 for 256 sqft more living space. Net adjustment: +$65,731.

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 $77,223

Adjusted -$12,325 for 48 sqft less living space and -$30,923 for being older and -$124,420 for no garage. Net adjustment: -$167,668.

612 CIRCLE AVE, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
2 bed 1 bath 693 sqft Built 1940
Raw Value $272,682
Adjusted Value $349,454

Adjusted +$76,772 for 299 sqft more living space. Net adjustment: +$76,772.

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 $234,954

Adjusted +$21,054 for 82 sqft more living space and -$124,420 for no garage. Net adjustment: -$103,366.

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 $297,750

Adjusted -$82,164 for 320 sqft less living space. Net adjustment: -$82,164.

The Neighborhood

This home is valued 18.2% 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
$377,498
Median
$319,256

This home is +18.2% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,471 across all districts. With a homestead exemption claimed, that drops to $5,155 — saving $1,316 per year. That's $430 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%$3,212
Round RockCity0.3720%$1,338
Williamson CountyCounty0.3694%$1,329
Austin Community Collegespecial0.1034%$372
Williamson County FM/RdCounty0.0443%$159
Upper Brushy Creek WCIDWater0.0170%$61
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$6,471

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $297,750 would pay approximately $1,859 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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