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3625 SANDY KOUFAX LN, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath1,816 sqftBuilt 2003

Property at a Glance

This home is estimated between $327,630 and $493,149, with a best estimate of $472,911. That places the property above the R454400F - Ryan's Crossing Sec 1 Thru 6 median of $339,919, in a neighborhood that declined 9.3% over the past year.

Estimated Value Range

$327,630 $493,149
Best Estimate
$472,911
WCAD Value
$326,655
High Confidence

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

Based on 5 comparable properties in R454400F - Ryan's Crossing Sec 1 Thru 6, this home's estimated market value is between $327,630 and $493,149. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

3601 SANDY KOUFAX LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,892 sqft Built 2003
Raw Value $341,792
Adjusted Value $327,630

Adjusted -$14,162 for 76 sqft less living space. Net adjustment: -$14,162.

3607 SANDY KOUFAX LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,892 sqft Built 2003
Raw Value $342,596
Adjusted Value $328,434

Adjusted -$14,162 for 76 sqft less living space. Net adjustment: -$14,162.

3410 SANDY KOUFAX LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,059 sqft Built 2002
Raw Value $353,039
Adjusted Value $493,149

Adjusted +$141,062 for 757 sqft more living space and -$952 for being older. Net adjustment: +$140,110.

3430 SANDY KOUFAX LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,088 sqft Built 2002
Raw Value $338,204
Adjusted Value $472,911

Adjusted +$135,659 for 728 sqft more living space and -$952 for being older. Net adjustment: +$134,707.

3417 SANDY KOUFAX LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,097 sqft Built 2003
Raw Value $343,477
Adjusted Value $477,458

Adjusted +$133,981 for 719 sqft more living space. Net adjustment: +$133,981.

The Neighborhood

This home is valued 3.9% below the R454400F - Ryan's Crossing Sec 1 Thru 6 median of $339,919. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 9.3% over the past year.

R454400F - Ryan's Crossing Sec 1 Thru 6

typical
567 Properties
$339,919 Median Value
-9.3% YoY Change
1% Have Pool
100% Have Garage
This Home
$326,655
Median
$339,919

This home is -3.9% below the subdivision median.

Tax Analysis

The estimated annual property tax is $5,877 across all districts. With a homestead exemption claimed, that drops to $4,567 — saving $1,310 per year. That's $381 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%$2,917
Round RockCity0.3720%$1,215
Williamson CountyCounty0.3694%$1,207
Austin Community Collegespecial0.1034%$338
Williamson County FM/RdCounty0.0443%$145
Upper Brushy Creek WCIDWater0.0170%$56
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$5,877

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $472,911 would pay approximately $2,952 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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