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3335 MARCASITE DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed3 bath2,832 sqftBuilt 2007

Property at a Glance

This home is estimated between $361,946 and $1,391,749, with a best estimate of $1,053,043. That places the property above the R147606C - WALSH RANCH median of $933,667, in a neighborhood that declined 4.6% over the past year.

Estimated Value Range

$361,946 $1,391,749
Best Estimate
$1,053,043
WCAD Value
$832,399
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 $361,946 and $1,391,749 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 $1,153,911

Adjusted +$249,262 for 613 sqft more living space. Net adjustment: +$249,262.

4 bed 3 bath 2,154 sqft Built 2001
Raw Value $860,722
Adjusted Value $1,053,043

Adjusted +$275,692 for 678 sqft more living space and -$83,371 for being older. Net adjustment: +$192,321.

4 bed 2 bath 3,110 sqft Built 2000
Raw Value $572,254
Adjusted Value $361,946

Adjusted -$113,042 for 278 sqft less living space and -$97,266 for being older. Net adjustment: -$210,308.

5 bed 5 bath 2,711 sqft Built 2016
Raw Value $1,217,491
Adjusted Value $1,391,749

Adjusted +$49,202 for 121 sqft more living space and +$125,056 for being newer. Net adjustment: +$174,258.

4 bed 3 bath 1,916 sqft Built 2014
Raw Value $562,011
Adjusted Value $1,031,746

Adjusted +$372,469 for 916 sqft more living space and +$97,266 for being newer. Net adjustment: +$469,735.

The Neighborhood

This home is valued 10.8% 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

typical
239 Properties
$933,667 Median Value
-4.6% YoY Change
0% Have Pool
100% Have Garage
This Home
$832,399
Median
$933,667

This home is -10.8% below the subdivision median.

Tax Analysis

The estimated annual property tax is $15,331 across all districts. With a homestead exemption claimed, that drops to $13,930 — saving $1,401 per year. That's $1,161 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%$7,311
Williamson CountyCounty0.3694%$3,024
Walsh Ranch MUDMUD0.3455%$2,828
Austin Community Collegespecial0.1034%$846
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$819
Williamson County FM/RdCounty0.0443%$363
Upper Brushy Creek WCIDWater0.0170%$139
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.8728%$15,331

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $1,053,043 would pay approximately $6,573 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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