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601 SPRING ST, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath1,880 sqftBuilt 1970

Property at a Glance

This home is estimated between $390,872 and $983,371, with a best estimate of $451,673. 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

$390,872 $983,371
Best Estimate
$451,673
WCAD Value
$651,852
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 $390,872 and $983,371 should be treated as a rough guide.

Comparable Properties (5)

601 CIRCLE AVE, ROUND ROCK, TX 78664
0.00 mi 92% similar Same subdivision
3 bed 3 bath 1,452 sqft Built 1977
Raw Value $679,901
Adjusted Value $983,371

Adjusted +$109,894 for 428 sqft more living space and -$21,646 for being older and +$90,802 for having a pool and +$124,420 for having a garage. Net adjustment: +$303,470.

3 bed 2 bath 1,942 sqft Built 1978
Raw Value $340,728
Adjusted Value $390,872

Adjusted -$15,919 for 62 sqft less living space and -$24,739 for being older and +$90,802 for having a pool. Net adjustment: +$50,144.

3 bed 2 bath 1,572 sqft Built 1983
Raw Value $321,989
Adjusted Value $451,673

Adjusted +$79,082 for 308 sqft more living space and -$40,200 for being older and +$90,802 for having a pool. Net adjustment: +$129,684.

3 bed 2 bath 1,477 sqft Built 1980
Raw Value $278,723
Adjusted Value $442,077

Adjusted +$103,475 for 403 sqft more living space and -$30,923 for being older and +$90,802 for having a pool. Net adjustment: +$163,354.

3 bed 2 bath 1,527 sqft Built 1985
Raw Value $323,748
Adjusted Value $458,802

Adjusted +$90,637 for 353 sqft more living space and -$46,385 for being older and +$90,802 for having a pool. Net adjustment: +$135,054.

The Neighborhood

This home is valued 104.2% 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

outlier high
360 Properties
$319,256 Median Value
+4.3% YoY Change
5% Have Pool
24% Have Garage
This Home
$651,852
Median
$319,256

This home is +104.2% above the subdivision median.

Tax Analysis

The estimated annual property tax is $11,729 across all districts. With a homestead exemption claimed, that drops to $10,358 — saving $1,371 per year. That's $863 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%$5,822
Round RockCity0.3720%$2,425
Williamson CountyCounty0.3694%$2,408
Austin Community Collegespecial0.1034%$674
Williamson County FM/RdCounty0.0443%$289
Upper Brushy Creek WCIDWater0.0170%$111
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$11,729

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $451,673 would pay approximately $2,819 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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