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16819 MOUSE TRAP DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed2 bath2,299 sqftBuilt 1995

Property at a Glance

This home is estimated between $432,642 and $1,081,544, with a best estimate of $911,430. That places the property above the R224599C - Cat Hollow Sec A Ph 3 median of $778,705, in a neighborhood that appreciated 6.9% over the past year.

Estimated Value Range

$432,642 $1,081,544
Best Estimate
$911,430
WCAD Value
$813,301
High Confidence

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

Based on 5 comparable properties in R224599C - Cat Hollow Sec A Ph 3, this home's estimated market value is between $432,642 and $1,081,544. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

16928 MOUSE TRAP DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,751 sqft Built 1995
Raw Value $882,250
Adjusted Value $1,081,544

Adjusted +$199,294 for 548 sqft more living space. Net adjustment: +$199,294.

16927 MOUSE TRAP DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 2,193 sqft Built 1996
Raw Value $995,698
Adjusted Value $1,034,581

Adjusted +$38,550 for 106 sqft more living space and +$333 for being newer. Net adjustment: +$38,883.

16808 MOUSE TRAP DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 3,180 sqft Built 1996
Raw Value $752,707
Adjusted Value $432,642

Adjusted -$320,398 for 881 sqft less living space and +$333 for being newer. Net adjustment: -$320,065.

16919 MOUSE TRAP DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,991 sqft Built 1996
Raw Value $764,589
Adjusted Value $820,576

Adjusted +$112,012 for 308 sqft more living space and +$333 for being newer and -$56,358 for no pool. Net adjustment: +$55,987.

16934 MOUSE TRAP DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 2,291 sqft Built 1996
Raw Value $908,188
Adjusted Value $911,430

Adjusted +$2,909 for 8 sqft more living space and +$333 for being newer. Net adjustment: +$3,242.

The Neighborhood

This home is valued 4.4% above the R224599C - Cat Hollow Sec A Ph 3 median of $778,705. With 143 homes in the subdivision, the property sits in the upper tier. The neighborhood appreciated 6.9% over the past year.

R224599C - Cat Hollow Sec A Ph 3

typical
143 Properties
$778,705 Median Value
+6.9% YoY Change
4% Have Pool
100% Have Garage
This Home
$813,301
Median
$778,705

This home is +4.4% above the subdivision median.

Tax Analysis

The estimated annual property tax is $15,568 across all districts. With a homestead exemption claimed, that drops to $14,167 — saving $1,401 per year. That's $1,181 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%$7,264
Brushy Creek MUDMUD0.3868%$3,146
Williamson CountyCounty0.3694%$3,005
Austin Community Collegespecial0.1034%$841
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$813
Williamson County FM/RdCounty0.0443%$361
Upper Brushy Creek WCIDWater0.0170%$138
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9141%$15,568

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $911,430 would pay approximately $5,689 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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