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

637 REGGIE JACKSON TRL, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath1,262 sqftBuilt 2000

Property at a Glance

This home is estimated between $235,053 and $402,032, with a best estimate of $391,175. 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

$235,053 $402,032
Best Estimate
$391,175
WCAD Value
$344,302
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 $235,053 and $402,032. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

603 REGGIE JACKSON TRAIL, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,828 sqft Built 2001
Raw Value $333,760
Adjusted Value $235,053

Adjusted -$105,471 for 566 sqft less living space and +$952 for being newer and +$5,812 for having a pool. Net adjustment: -$98,707.

606 REGGIE JACKSON TRL, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,321 sqft Built 2001
Raw Value $355,086
Adjusted Value $350,856

Adjusted -$10,994 for 59 sqft less living space and +$952 for being newer and +$5,812 for having a pool. Net adjustment: -$4,230.

600 REGGIE JACKSON TRL, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 920 sqft Built 2001
Raw Value $329,587
Adjusted Value $400,081

Adjusted +$63,730 for 342 sqft more living space and +$952 for being newer and +$5,812 for having a pool. Net adjustment: +$70,494.

658 REGGIE JACKSON TRL, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,060 sqft Built 2001
Raw Value $346,769
Adjusted Value $391,175

Adjusted +$37,642 for 202 sqft more living space and +$952 for being newer and +$5,812 for having a pool. Net adjustment: +$44,406.

628 REGGIE JACKSON TRL, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,001 sqft Built 2001
Raw Value $346,632
Adjusted Value $402,032

Adjusted +$48,636 for 261 sqft more living space and +$952 for being newer and +$5,812 for having a pool. Net adjustment: +$55,400.

The Neighborhood

This home is valued 1.3% above the R454400F - Ryan's Crossing Sec 1 Thru 6 median of $339,919. With 567 homes in the subdivision, the property sits in the upper tier. 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
$344,302
Median
$339,919

This home is +1.3% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,195 across all districts. With a homestead exemption claimed, that drops to $4,881 — saving $1,314 per year. That's $407 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%$3,075
Round RockCity0.3720%$1,281
Williamson CountyCounty0.3694%$1,272
Austin Community Collegespecial0.1034%$356
Williamson County FM/RdCounty0.0443%$153
Upper Brushy Creek WCIDWater0.0170%$59
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$6,195

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $391,175 would pay approximately $2,442 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