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3115 LUMINOSO LN E, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed3 bath1,294 sqftBuilt 2004

Property at a Glance

This home is estimated between $248,138 and $543,278, with a best estimate of $415,065. 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

$248,138 $543,278
Best Estimate
$415,065
WCAD Value
$732,546
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 $248,138 and $543,278 should be treated as a rough guide.

Comparable Properties (5)

3 bed 1,232 sqft Built 2011
Raw Value $141,391
Adjusted Value $248,138

Adjusted +$22,868 for 62 sqft more living space and +$22,369 for being newer and +$61,510 for having a garage. Net adjustment: +$106,747.

4 bed 2 bath 1,186 sqft Built 1994
Raw Value $407,186
Adjusted Value $415,065

Adjusted +$39,835 for 108 sqft more living space and -$31,956 for being older. Net adjustment: +$7,879.

4 bed 3 bath 1,811 sqft Built 2014
Raw Value $702,015
Adjusted Value $543,278

Adjusted -$190,693 for 517 sqft less living space and +$31,956 for being newer. Net adjustment: -$158,737.

4 bed 3 bath 2,154 sqft Built 2001
Raw Value $860,722
Adjusted Value $533,928

Adjusted -$317,207 for 860 sqft less living space and -$9,587 for being older. Net adjustment: -$326,794.

4 bed 3 bath 1,916 sqft Built 2014
Raw Value $562,011
Adjusted Value $364,545

Adjusted -$229,422 for 622 sqft less living space and +$31,956 for being newer. Net adjustment: -$197,466.

The Neighborhood

This home is valued 5.8% 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
$732,546
Median
$692,215

This home is +5.8% above the subdivision median.

Tax Analysis

The estimated annual property tax is $12,675 across all districts. With a homestead exemption claimed, that drops to $11,303 — saving $1,372 per year. That's $942 per month a buyer should budget. The assessed value increased +12.6% vs the subdivision average of +3.8%. This above-average increase gives a protest opportunity score of 74 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$5,914
Brushy Creek MUDMUD0.3868%$2,562
Williamson CountyCounty0.3694%$2,446
Austin Community Collegespecial0.1034%$685
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$662
Williamson County FM/RdCounty0.0443%$294
Upper Brushy Creek WCIDWater0.0170%$113
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9141%$12,675
74 / 100

There may be a strong case to protest this appraisal.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $415,065 would pay approximately $2,591 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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