Beta Williamson County, TX only — data and coverage are limited during early access.

4105 MOSS HOLLOW DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed2 bath1,440 sqftBuilt 1998

Property at a Glance

This home is estimated between $184,893 and $555,008, with a best estimate of $280,354. That places the property below the L494500D - Vista Oaks Sec 5B Ph 2 & SEC 5C median of $449,628, in a neighborhood that declined 2.9% over the past year.

Estimated Value Range

$184,893 $555,008
Best Estimate
$280,354
WCAD Value
$450,142
High Confidence

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

Based on 5 comparable properties in L494500D - Vista Oaks Sec 5B Ph 2 & SEC 5C, this home's estimated market value is between $184,893 and $555,008. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

4110 MOSS HOLLOW DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,953 sqft Built 1998
Raw Value $424,792
Adjusted Value $280,354

Adjusted -$144,438 for 513 sqft less living space. Net adjustment: -$144,438.

4112 MOSS HOLLOW DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,054 sqft Built 1998
Raw Value $433,666
Adjusted Value $260,791

Adjusted -$172,875 for 614 sqft less living space. Net adjustment: -$172,875.

4113 MOSS HOLLOW DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 2,365 sqft Built 1997
Raw Value $441,780
Adjusted Value $184,893

Adjusted -$260,439 for 925 sqft less living space and +$3,552 for being newer. Net adjustment: -$256,887.

4120 MOSS HOLLOW DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,436 sqft Built 1998
Raw Value $553,882
Adjusted Value $555,008

Adjusted +$1,126 for 4 sqft more living space. Net adjustment: +$1,126.

4128 MOSS HOLLOW DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,924 sqft Built 2001
Raw Value $431,411
Adjusted Value $284,481

Adjusted -$136,273 for 484 sqft less living space and -$10,657 for being older. Net adjustment: -$146,930.

The Neighborhood

This home is in line with the L494500D - Vista Oaks Sec 5B Ph 2 & SEC 5C median of $449,628. Note that values in this subdivision declined 2.9% over the past year.

L494500D - Vista Oaks Sec 5B Ph 2 & SEC 5C

typical
904 Properties
$449,628 Median Value
-2.9% YoY Change
1% Have Pool
99% Have Garage
This Home
$450,142
Median
$449,628

This home is +0.1% above the subdivision median.

Tax Analysis

The estimated annual property tax is $8,706 across all districts. With a homestead exemption claimed, that drops to $7,101 — saving $1,605 per year. That's $592 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
Leander ISDSchool1.0869%$4,893
Williamson CountyCounty0.3694%$1,663
Vista Oaks MUDMUD0.2131%$959
Austin Community Collegespecial0.1034%$465
Williamson County ESD #9 - Round RockESD0.0999%$450
Williamson County FM/RdCounty0.0443%$200
Upper Brushy Creek WCIDWater0.0170%$77
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9341%$8,706

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $280,354 would pay approximately $1,750 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.

View full property details