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3107 LUMINOSO LN E, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed3 bath1,770 sqftBuilt 2003

Property at a Glance

This home is estimated between $543,312 and $751,819, with a best estimate of $712,694. That places the property above 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

$543,312 $751,819
Best Estimate
$712,694
WCAD Value
$720,896
Low Confidence

Based on 5 comparable properties(0 in the same subdivision)

There are 5 comparable properties within range, but none are in R101506D - Sendero Springs Sec 4,5 East of SS Dr.. The estimated range of $543,312 and $751,819 should be treated as a rough guide.

Comparable Properties (5)

4 bed 3 bath 1,811 sqft Built 2014
Raw Value $702,015
Adjusted Value $722,044

Adjusted -$15,123 for 41 sqft less living space and +$35,152 for being newer. Net adjustment: +$20,029.

4 bed 3 bath 2,154 sqft Built 2001
Raw Value $860,722
Adjusted Value $712,694

Adjusted -$141,637 for 384 sqft less living space and -$6,391 for being older. Net adjustment: -$148,028.

4 bed 3 bath 1,916 sqft Built 2014
Raw Value $562,011
Adjusted Value $543,312

Adjusted -$53,851 for 146 sqft less living space and +$35,152 for being newer. Net adjustment: -$18,699.

4 bed 3 bath 1,916 sqft Built 2016
Raw Value $578,786
Adjusted Value $566,478

Adjusted -$53,851 for 146 sqft less living space and +$41,543 for being newer. Net adjustment: -$12,308.

4 bed 3 bath 2,219 sqft Built 2007
Raw Value $904,649
Adjusted Value $751,819

Adjusted -$165,612 for 449 sqft less living space and +$12,782 for being newer. Net adjustment: -$152,830.

The Neighborhood

This home is valued 4.1% above the R101506D - Sendero Springs Sec 4,5 East of SS Dr. median of $692,215. With 299 homes in the subdivision, the property sits in the upper tier. 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
$720,896
Median
$692,215

This home is +4.1% above the subdivision median.

Tax Analysis

The estimated annual property tax is $12,650 across all districts. With a homestead exemption claimed, that drops to $11,278 — saving $1,372 per year. That's $940 per month a buyer should budget. The assessed value increased +9.8% vs the subdivision average of +3.8%. This above-average increase gives a protest opportunity score of 50 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$5,902
Brushy Creek MUDMUD0.3868%$2,557
Williamson CountyCounty0.3694%$2,442
Austin Community Collegespecial0.1034%$683
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$661
Williamson County FM/RdCounty0.0443%$293
Upper Brushy Creek WCIDWater0.0170%$112
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9141%$12,650
50 / 100

Moderate opportunity to protest.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $712,694 would pay approximately $4,449 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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