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601/603 GREENLAWN BLVD, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed4 bath1,821 sqftBuilt 1985

Property at a Glance

This home is estimated between $323,614 and $423,499, with a best estimate of $394,825. That places the property above the R450X - Round Rock East - Duplex median of $355,449, in a neighborhood that declined 8.7% over the past year.

Estimated Value Range

$323,614 $423,499
Best Estimate
$394,825
WCAD Value
$352,826
Low Confidence

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

There are 5 comparable properties within range, but few are in R450X - Round Rock East - Duplex. The estimated range of $323,614 and $423,499 should be treated as a rough guide.

Comparable Properties (5)

603 COUNTRY AIRE DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 4 bath 2,004 sqft Built 1983
Raw Value $357,173
Adjusted Value $323,614

Adjusted -$35,559 for 183 sqft less living space and +$2,000 for being newer. Net adjustment: -$33,559.

3 bed 2 bath 1,913 sqft Built 1975
Raw Value $389,587
Adjusted Value $423,499

Adjusted -$17,877 for 92 sqft less living space and +$10,002 for being newer and +$41,787 for having a garage. Net adjustment: +$33,912.

3 bed 2 bath 1,704 sqft Built 1976
Raw Value $349,687
Adjusted Value $423,211

Adjusted +$22,735 for 117 sqft more living space and +$9,002 for being newer and +$41,787 for having a garage. Net adjustment: +$73,524.

3 bed 2 bath 1,631 sqft Built 1992
Raw Value $334,308
Adjusted Value $364,226

Adjusted +$36,919 for 190 sqft more living space and -$7,001 for being older. Net adjustment: +$29,918.

3 bed 2 bath 1,571 sqft Built 1978
Raw Value $339,246
Adjusted Value $394,825

Adjusted +$48,578 for 250 sqft more living space and +$7,001 for being newer. Net adjustment: +$55,579.

The Neighborhood

This home is in line with the R450X - Round Rock East - Duplex median of $355,449. Note that values in this subdivision declined 8.7% over the past year.

R450X - Round Rock East - Duplex

typical
836 Properties
$355,449 Median Value
-8.7% YoY Change
0% Have Pool
84% Have Garage
This Home
$352,826
Median
$355,449

This home is -0.7% below the subdivision median.

Tax Analysis

The estimated annual property tax is $6,348 across all districts. With a homestead exemption claimed, that drops to $5,033 — saving $1,315 per year. That's $419 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%$3,151
Round RockCity0.3720%$1,313
Williamson CountyCounty0.3694%$1,304
Austin Community Collegespecial0.1034%$365
Williamson County FM/RdCounty0.0443%$156
Upper Brushy Creek WCIDWater0.0170%$60
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$6,348

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $394,825 would pay approximately $2,464 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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