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

CR 122, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed8,400 sqftBuilt 2012

Property at a Glance

This home is estimated between $1,835,673 and $1,920,324, with a best estimate of $1,880,151.

Estimated Value Range

$1,835,673 $1,920,324
Best Estimate
$1,880,151
WCAD Value
$1,708,836
Low Confidence

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

There are 5 comparable properties within range, but none are in T14EN - Nightclub/lounge/pool Halls-hutto. The estimated range of $1,835,673 and $1,920,324 should be treated as a rough guide.

Comparable Properties (5)

3 bed 2 bath 1,880 sqft Built 2016
Raw Value $365,655
Adjusted Value $1,880,151

Adjusted +$1,574,284 for 6,520 sqft more living space and +$405 for being newer and -$60,193 for no garage. Net adjustment: +$1,514,496.

3 bed 2 bath 1,842 sqft Built 2017
Raw Value $361,578
Adjusted Value $1,885,350

Adjusted +$1,583,459 for 6,558 sqft more living space and +$506 for being newer and -$60,193 for no garage. Net adjustment: +$1,523,772.

3 bed 2 bath 1,648 sqft Built 2018
Raw Value $349,608
Adjusted Value $1,920,324

Adjusted +$1,630,302 for 6,752 sqft more living space and +$607 for being newer and -$60,193 for no garage. Net adjustment: +$1,570,716.

4 bed 3 bath 2,134 sqft Built 2016
Raw Value $382,506
Adjusted Value $1,835,673

Adjusted +$1,512,955 for 6,266 sqft more living space and +$405 for being newer and -$60,193 for no garage. Net adjustment: +$1,453,167.

3 bed 2 bath 2,133 sqft Built 2018
Raw Value $387,807
Adjusted Value $1,841,417

Adjusted +$1,513,196 for 6,267 sqft more living space and +$607 for being newer and -$60,193 for no garage. Net adjustment: +$1,453,610.

The Neighborhood

Subdivision comparison data is not available for this property.

Tax Analysis

The estimated annual property tax is $30,362 across all districts. With a homestead exemption claimed, that drops to $28,359 — saving $2,003 per year. That's $2,363 per month a buyer should budget. The assessed value increased +0.5%. This increase gives a protest opportunity score of 50 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Hutto ISDSchool1.2052%$20,595
Williamson CountyCounty0.3694%$6,313
Williamson County ESD #9 - Round RockESD0.0999%$1,707
Williamson County FM/RdCounty0.0443%$758
EWC Higher Ed Centerspecial0.0409%$698
Upper Brushy Creek WCIDWater0.0170%$291
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7768%$30,362
50 / 100

Moderate opportunity to protest.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $1,880,151 would pay approximately $11,736 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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