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

663 REGGIE JACKSON TRL, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath1,013 sqftBuilt 2001

Property at a Glance

This home is estimated between $297,692 and $348,868, with a best estimate of $346,917. 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

$297,692 $348,868
Best Estimate
$346,917
WCAD Value
$341,315
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 $297,692 and $348,868. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

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 $297,692

Adjusted -$57,394 for 308 sqft less living space. Net adjustment: -$57,394.

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 $346,917

Adjusted +$17,330 for 93 sqft more living space. Net adjustment: +$17,330.

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 $338,011

Adjusted -$8,758 for 47 sqft less living space. Net adjustment: -$8,758.

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 $348,868

Adjusted +$2,236 for 12 sqft more living space. Net adjustment: +$2,236.

610 REGGIE JACKSON TRL, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,000 sqft Built 2001
Raw Value $346,224
Adjusted Value $348,646

Adjusted +$2,422 for 13 sqft more living space. Net adjustment: +$2,422.

The Neighborhood

This home is in line with the R454400F - Ryan's Crossing Sec 1 Thru 6 median of $339,919. 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
$341,315
Median
$339,919

This home is +0.4% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,141 across all districts. With a homestead exemption claimed, that drops to $4,828 — saving $1,313 per year. That's $402 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%$3,048
Round RockCity0.3720%$1,270
Williamson CountyCounty0.3694%$1,261
Austin Community Collegespecial0.1034%$353
Williamson County FM/RdCounty0.0443%$151
Upper Brushy Creek WCIDWater0.0170%$58
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$6,141

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $346,917 would pay approximately $2,165 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