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

3005 LUMINOSO LN E, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed3 bath1,785 sqftBuilt 2003

Property at a Glance

This home is estimated between $303,704 and $760,296, with a best estimate of $682,090. That places the property below the R101506D - Sendero Springs Sec 4,5 East of SS Dr. median of $692,215, in a neighborhood that appreciated 3.8% over the past year.

Estimated Value Range

$303,704 $760,296
Best Estimate
$682,090
WCAD Value
$684,887
High Confidence

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

Based on 5 comparable properties in R101506D - Sendero Springs Sec 4,5 East of SS Dr., this home's estimated market value is between $303,704 and $760,296. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

3001 E LUMINOSO LN, ROUND ROCK, TX 78681
0.02 mi 100% similar Same subdivision
4 bed 3 bath 1,876 sqft Built 2003
Raw Value $758,846
Adjusted Value $725,281

Adjusted -$33,565 for 91 sqft less living space. Net adjustment: -$33,565.

3004 ASOMBRA LN, ROUND ROCK, TX 78681
0.03 mi 100% similar Same subdivision
4 bed 3 bath 1,791 sqft Built 2005
Raw Value $756,118
Adjusted Value $760,296

Adjusted -$2,213 for 6 sqft less living space and +$6,391 for being newer. Net adjustment: +$4,178.

3012 ASOMBRA LN, ROUND ROCK, TX 78681
0.05 mi 100% similar Same subdivision
4 bed 2 bath 2,052 sqft Built 2006
Raw Value $770,985
Adjusted Value $682,090

Adjusted -$98,482 for 267 sqft less living space and +$9,587 for being newer. Net adjustment: -$88,895.

3017 LUMINOSO LN E, ROUND ROCK, TX 78681
0.05 mi 100% similar Same subdivision
4 bed 2 bath 1,811 sqft Built 2002
Raw Value $690,391
Adjusted Value $677,605

Adjusted -$9,590 for 26 sqft less living space and -$3,196 for being older. Net adjustment: -$12,786.

3008 ASOMBRA LN, ROUND ROCK, TX 78681
0.04 mi 100% similar Same subdivision
4 bed 3 bath 3,034 sqft Built 2005
Raw Value $758,001
Adjusted Value $303,704

Adjusted -$460,688 for 1,249 sqft less living space and +$6,391 for being newer. Net adjustment: -$454,297.

The Neighborhood

This home is valued 1.1% below the R101506D - Sendero Springs Sec 4,5 East of SS Dr. median of $692,215. That positions it competitively for buyers comparing within the neighborhood. The neighborhood appreciated 3.8% over the past year.

R101506D - Sendero Springs Sec 4,5 East of SS Dr.

typical
299 Properties
$692,215 Median Value
+3.8% YoY Change
0% Have Pool
97% Have Garage
This Home
$684,887
Median
$692,215

This home is -1.1% below the subdivision median.

Tax Analysis

The estimated annual property tax is $13,110 across all districts. With a homestead exemption claimed, that drops to $11,733 — saving $1,377 per year. That's $978 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%$6,117
Brushy Creek MUDMUD0.3868%$2,649
Williamson CountyCounty0.3694%$2,530
Austin Community Collegespecial0.1034%$708
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$685
Williamson County FM/RdCounty0.0443%$304
Upper Brushy Creek WCIDWater0.0170%$116
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9141%$13,110

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $682,090 would pay approximately $4,258 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