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3109 LUMINOSO LN E, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed3 bath2,010 sqftBuilt 2003

Property at a Glance

This home is estimated between $631,834 and $840,342, with a best estimate of $801,217. 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

$631,834 $840,342
Best Estimate
$801,217
WCAD Value
$797,292
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 $631,834 and $840,342 should be treated as a rough guide.

Comparable Properties (5)

4 bed 3 bath 2,219 sqft Built 2007
Raw Value $904,649
Adjusted Value $840,342

Adjusted -$77,089 for 209 sqft less living space and +$12,782 for being newer. Net adjustment: -$64,307.

4 bed 3 bath 2,154 sqft Built 2001
Raw Value $860,722
Adjusted Value $801,217

Adjusted -$53,114 for 144 sqft less living space and -$6,391 for being older. Net adjustment: -$59,505.

4 bed 3 bath 1,916 sqft Built 2014
Raw Value $562,011
Adjusted Value $631,834

Adjusted +$34,671 for 94 sqft more living space and +$35,152 for being newer. Net adjustment: +$69,823.

4 bed 3 bath 1,916 sqft Built 2016
Raw Value $578,786
Adjusted Value $655,000

Adjusted +$34,671 for 94 sqft more living space and +$41,543 for being newer. Net adjustment: +$76,214.

4 bed 3 bath 1,811 sqft Built 2014
Raw Value $702,015
Adjusted Value $810,567

Adjusted +$73,400 for 199 sqft more living space and +$35,152 for being newer. Net adjustment: +$108,552.

The Neighborhood

This home is valued 15.2% 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
$797,292
Median
$692,215

This home is +15.2% above the subdivision median.

Tax Analysis

The estimated annual property tax is $15,261 across all districts. With a homestead exemption claimed, that drops to $13,863 — saving $1,398 per year. That's $1,155 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%$7,121
Brushy Creek MUDMUD0.3868%$3,084
Williamson CountyCounty0.3694%$2,946
Austin Community Collegespecial0.1034%$824
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$797
Williamson County FM/RdCounty0.0443%$353
Upper Brushy Creek WCIDWater0.0170%$136
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9141%$15,261

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $801,217 would pay approximately $5,001 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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