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3331 MARCASITE DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed3 bath2,355 sqftBuilt 2007

Property at a Glance

This home is estimated between $837,786 and $1,020,485, with a best estimate of $882,351. 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

$837,786 $1,020,485
Best Estimate
$882,351
WCAD Value
$892,435
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 $837,786 and $1,020,485 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 $959,950

Adjusted +$55,301 for 136 sqft more living space. Net adjustment: +$55,301.

4 bed 3 bath 2,154 sqft Built 2001
Raw Value $860,722
Adjusted Value $859,083

Adjusted +$81,732 for 201 sqft more living space and -$83,371 for being older. Net adjustment: -$1,639.

4 bed 3 bath 1,916 sqft Built 2014
Raw Value $562,011
Adjusted Value $837,786

Adjusted +$178,509 for 439 sqft more living space and +$97,266 for being newer. Net adjustment: +$275,775.

4 bed 3 bath 1,916 sqft Built 2016
Raw Value $578,786
Adjusted Value $882,351

Adjusted +$178,509 for 439 sqft more living space and +$125,056 for being newer. Net adjustment: +$303,565.

4 bed 3 bath 1,811 sqft Built 2014
Raw Value $702,015
Adjusted Value $1,020,485

Adjusted +$221,204 for 544 sqft more living space and +$97,266 for being newer. Net adjustment: +$318,470.

The Neighborhood

This home is valued 4.4% 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
$892,435
Median
$933,667

This home is -4.4% below the subdivision median.

Tax Analysis

The estimated annual property tax is $16,582 across all districts. With a homestead exemption claimed, that drops to $15,168 — saving $1,414 per year. That's $1,264 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%$7,908
Williamson CountyCounty0.3694%$3,271
Walsh Ranch MUDMUD0.3455%$3,059
Austin Community Collegespecial0.1034%$916
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$885
Williamson County FM/RdCounty0.0443%$393
Upper Brushy Creek WCIDWater0.0170%$151
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.8728%$16,582

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $882,351 would pay approximately $5,508 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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