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

2109 WILLOW WAY, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath1,544 sqftBuilt 1985

Property at a Glance

This home is estimated between $286,671 and $324,059, with a best estimate of $310,552. That places the property below the R510485H - SOUTHCREEK median of $335,905, in a neighborhood that declined 4.2% over the past year.

Estimated Value Range

$286,671 $324,059
Best Estimate
$310,552
WCAD Value
$345,690
Low Confidence

Based on 5 comparable properties(2 in the same subdivision)

There are 5 comparable properties within range, but few are in R510485H - SOUTHCREEK. The estimated range of $286,671 and $324,059 should be treated as a rough guide.

Comparable Properties (5)

2107 WILLOW WAY, ROUND ROCK, TX 78664
0.01 mi 100% similar Same subdivision
3 bed 2 bath 1,426 sqft Built 1985
Raw Value $294,924
Adjusted Value $322,998

Adjusted +$28,074 for 118 sqft more living space. Net adjustment: +$28,074.

2105 WILLOW WAY, ROUND ROCK, TX 78664
0.02 mi 100% similar Same subdivision
3 bed 2 bath 1,721 sqft Built 1985
Raw Value $352,664
Adjusted Value $310,552

Adjusted -$42,112 for 177 sqft less living space. Net adjustment: -$42,112.

3 bed 2 bath 1,588 sqft Built 1977
Raw Value $300,566
Adjusted Value $301,893

Adjusted -$10,468 for 44 sqft less living space and +$11,795 for being newer. Net adjustment: +$1,327.

3 bed 2 bath 1,588 sqft Built 1977
Raw Value $324,593
Adjusted Value $324,059

Adjusted -$10,468 for 44 sqft less living space and +$11,795 for being newer and -$1,861 for no pool. Net adjustment: -$534.

3 bed 2 bath 1,530 sqft Built 1998
Raw Value $302,507
Adjusted Value $286,671

Adjusted +$3,331 for 14 sqft more living space and -$19,167 for being older. Net adjustment: -$15,836.

The Neighborhood

This home is valued 2.9% above the R510485H - SOUTHCREEK median of $335,905. With 1,020 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 4.2% over the past year.

R510485H - SOUTHCREEK

typical
1,020 Properties
$335,905 Median Value
-4.2% YoY Change
1% Have Pool
97% Have Garage
This Home
$345,690
Median
$335,905

This home is +2.9% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,220 across all districts. With a homestead exemption claimed, that drops to $4,906 — saving $1,314 per year. That's $409 per month a buyer should budget. The assessed value increased +2.9% vs the subdivision average of -4.2%. This above-average increase gives a protest opportunity score of 36 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$3,087
Round RockCity0.3720%$1,286
Williamson CountyCounty0.3694%$1,277
Austin Community Collegespecial0.1034%$357
Williamson County FM/RdCounty0.0443%$153
Upper Brushy Creek WCIDWater0.0170%$59
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$6,220
36 / 100

Some opportunity.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $310,552 would pay approximately $1,938 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