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3105 LUMINOSO LN E, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed3 bath1,855 sqftBuilt 2004

Property at a Glance

This home is estimated between $571,467 and $779,976, with a best estimate of $740,850. 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

$571,467 $779,976
Best Estimate
$740,850
WCAD Value
$830,526
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 $571,467 and $779,976 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 $750,200

Adjusted +$16,229 for 44 sqft more living space and +$31,956 for being newer. Net adjustment: +$48,185.

4 bed 3 bath 1,916 sqft Built 2014
Raw Value $562,011
Adjusted Value $571,467

Adjusted -$22,500 for 61 sqft less living space and +$31,956 for being newer. Net adjustment: +$9,456.

4 bed 3 bath 1,916 sqft Built 2016
Raw Value $578,786
Adjusted Value $594,633

Adjusted -$22,500 for 61 sqft less living space and +$38,347 for being newer. Net adjustment: +$15,847.

4 bed 3 bath 2,154 sqft Built 2001
Raw Value $860,722
Adjusted Value $740,850

Adjusted -$110,285 for 299 sqft less living space and -$9,587 for being older. Net adjustment: -$119,872.

4 bed 3 bath 2,219 sqft Built 2007
Raw Value $904,649
Adjusted Value $779,976

Adjusted -$134,260 for 364 sqft less living space and +$9,587 for being newer. Net adjustment: -$124,673.

The Neighborhood

This home is valued 20.0% 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.

above average
299 Properties
$692,215 Median Value
+3.8% YoY Change
0% Have Pool
97% Have Garage
This Home
$830,526
Median
$692,215

This home is +20.0% above the subdivision median.

Tax Analysis

The estimated annual property tax is $15,897 across all districts. With a homestead exemption claimed, that drops to $14,493 — saving $1,404 per year. That's $1,208 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%$7,417
Brushy Creek MUDMUD0.3868%$3,213
Williamson CountyCounty0.3694%$3,068
Austin Community Collegespecial0.1034%$859
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$831
Williamson County FM/RdCounty0.0443%$368
Upper Brushy Creek WCIDWater0.0170%$141
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9141%$15,897

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $740,850 would pay approximately $4,624 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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