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

2103 MONTICELLO CT, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed2 bath2,222 sqftBuilt 2011

Property at a Glance

This home is estimated between $475,172 and $740,613, with a best estimate of $706,214. That places the property above the R417506E - TERAVISTA R4 median of $430,980, in a neighborhood that declined 4.6% over the past year.

Estimated Value Range

$475,172 $740,613
Best Estimate
$706,214
WCAD Value
$655,561
Low Confidence

Based on 5 comparable properties(0 in the same subdivision)

There are 5 comparable properties within range, but none are in R417506E - TERAVISTA R4. The estimated range of $475,172 and $740,613 should be treated as a rough guide.

Comparable Properties (5)

4 bed 2 bath 2,602 sqft Built 2010
Raw Value $631,338
Adjusted Value $539,922

Adjusted -$90,597 for 380 sqft less living space and -$819 for being older. Net adjustment: -$91,416.

4 bed 2 bath 1,871 sqft Built 2011
Raw Value $656,930
Adjusted Value $740,613

Adjusted +$83,683 for 351 sqft more living space. Net adjustment: +$83,683.

4 bed 2 bath 1,868 sqft Built 2011
Raw Value $633,187
Adjusted Value $717,585

Adjusted +$84,398 for 354 sqft more living space. Net adjustment: +$84,398.

4 bed 2 bath 1,912 sqft Built 2007
Raw Value $635,582
Adjusted Value $706,214

Adjusted +$73,908 for 310 sqft more living space and -$3,276 for being older. Net adjustment: +$70,632.

3 bed 2 bath 2,270 sqft Built 2016
Raw Value $482,521
Adjusted Value $475,172

Adjusted -$11,444 for 48 sqft less living space and +$4,095 for being newer. Net adjustment: -$7,349.

The Neighborhood

This home is valued 52.1% above the R417506E - TERAVISTA R4 median of $430,980. With 1,632 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 4.6% over the past year.

R417506E - TERAVISTA R4

outlier high
1,632 Properties
$430,980 Median Value
-4.6% YoY Change
1% Have Pool
99% Have Garage
This Home
$655,561
Median
$430,980

This home is +52.1% above the subdivision median.

Tax Analysis

The estimated annual property tax is $12,408 across all districts. With a homestead exemption claimed, that drops to $11,037 — saving $1,371 per year. That's $920 per month a buyer should budget. The assessed value increased +8.8% vs the subdivision average of -4.6%. This above-average increase gives a protest opportunity score of 70 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$5,855
Williamson CountyCounty0.3694%$2,422
Williamson County MUD #11MUD0.3656%$2,397
Austin Community Collegespecial0.1034%$678
Williamson County ESD #9 - Round RockESD0.0999%$655
Williamson County FM/RdCounty0.0443%$291
Upper Brushy Creek WCIDWater0.0170%$111
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.8928%$12,408
70 / 100

There may be a strong case to protest this appraisal.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $706,214 would pay approximately $4,408 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