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3343 MARCASITE DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed2 bath2,360 sqftBuilt 2007

Property at a Glance

This home is estimated between $170,019 and $961,983, with a best estimate of $861,116. That places the property below the R147606C - WALSH RANCH median of $933,667, in a neighborhood that declined 4.6% over the past year.

Estimated Value Range

$170,019 $961,983
Best Estimate
$861,116
WCAD Value
$779,635
Low Confidence

Based on 5 comparable properties(1 in the same subdivision)

There are 5 comparable properties within range, but few are in R147606C - WALSH RANCH. The estimated range of $170,019 and $961,983 should be treated as a rough guide.

Comparable Properties (5)

3323 MARCASITE DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,219 sqft Built 2007
Raw Value $904,649
Adjusted Value $961,983

Adjusted +$57,334 for 141 sqft more living space. Net adjustment: +$57,334.

3 bed 2 bath 2,221 sqft Built 2014
Raw Value $741,595
Adjusted Value $895,382

Adjusted +$56,521 for 139 sqft more living space and +$97,266 for being newer. Net adjustment: +$153,787.

3 bed 2 bath 2,248 sqft Built 2018
Raw Value $479,901
Adjusted Value $678,289

Adjusted +$45,542 for 112 sqft more living space and +$152,846 for being newer. Net adjustment: +$198,388.

4 bed 3 bath 2,154 sqft Built 2001
Raw Value $860,722
Adjusted Value $861,116

Adjusted +$83,765 for 206 sqft more living space and -$83,371 for being older. Net adjustment: +$394.

4 bed 2 bath 3,110 sqft Built 2000
Raw Value $572,254
Adjusted Value $170,019

Adjusted -$304,969 for 750 sqft less living space and -$97,266 for being older. Net adjustment: -$402,235.

The Neighborhood

This home is valued 16.5% below the R147606C - WALSH RANCH median of $933,667. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 4.6% over the past year.

R147606C - WALSH RANCH

below average
239 Properties
$933,667 Median Value
-4.6% YoY Change
0% Have Pool
100% Have Garage
This Home
$779,635
Median
$933,667

This home is -16.5% below the subdivision median.

Tax Analysis

The estimated annual property tax is $14,601 across all districts. With a homestead exemption claimed, that drops to $13,206 — saving $1,395 per year. That's $1,101 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%$6,963
Williamson CountyCounty0.3694%$2,880
Walsh Ranch MUDMUD0.3455%$2,694
Austin Community Collegespecial0.1034%$806
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$780
Williamson County FM/RdCounty0.0443%$346
Upper Brushy Creek WCIDWater0.0170%$133
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.8728%$14,601

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $861,116 would pay approximately $5,375 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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