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

3733 PENELOPE WAY, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed2 bath1,766 sqftBuilt 2014

Property at a Glance

This home is estimated between $365,867 and $736,321, with a best estimate of $397,692. That places the property above the R493607C - PALOMA LAKE SEC 18 median of $387,915, in a neighborhood that declined 9.2% over the past year.

Estimated Value Range

$365,867 $736,321
Best Estimate
$397,692
WCAD Value
$475,771
Low Confidence

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

There are 5 comparable properties within range, but none are in R493607C - PALOMA LAKE SEC 18. The estimated range of $365,867 and $736,321 should be treated as a rough guide.

Comparable Properties (5)

4 bed 1,801 sqft Built 2019
Raw Value $740,689
Adjusted Value $736,321

Adjusted -$7,005 for 35 sqft less living space and +$2,637 for being newer. Net adjustment: -$4,368.

3 bed 2 bath 1,810 sqft Built 2015
Raw Value $374,146
Adjusted Value $365,867

Adjusted -$8,806 for 44 sqft less living space and +$527 for being newer. Net adjustment: -$8,279.

4 bed 3 bath 1,733 sqft Built 2015
Raw Value $501,398
Adjusted Value $508,530

Adjusted +$6,605 for 33 sqft more living space and +$527 for being newer. Net adjustment: +$7,132.

3 bed 2 bath 1,866 sqft Built 2016
Raw Value $416,652
Adjusted Value $397,692

Adjusted -$20,015 for 100 sqft less living space and +$1,055 for being newer. Net adjustment: -$18,960.

4 bed 2 bath 2,055 sqft Built 2018
Raw Value $441,412
Adjusted Value $385,680

Adjusted -$57,842 for 289 sqft less living space and +$2,110 for being newer. Net adjustment: -$55,732.

The Neighborhood

This home is valued 22.6% above the R493607C - PALOMA LAKE SEC 18 median of $387,915. With 295 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 9.2% over the past year.

R493607C - PALOMA LAKE SEC 18

above average
295 Properties
$387,915 Median Value
-9.2% YoY Change
0% Have Pool
100% Have Garage
This Home
$475,771
Median
$387,915

This home is +22.6% above the subdivision median.

Tax Analysis

The estimated annual property tax is $9,271 across all districts. With a homestead exemption claimed, that drops to $7,933 — saving $1,338 per year. That's $661 per month a buyer should budget. The assessed value increased +0.7% vs the subdivision average of -9.2%. This above-average increase gives a protest opportunity score of 50 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$4,249
Paloma Lakes MUD #2MUD0.4215%$2,005
Williamson CountyCounty0.3694%$1,758
Austin Community Collegespecial0.1034%$492
Williamson County ESD #9 - Round RockESD0.0999%$475
Williamson County FM/RdCounty0.0443%$211
Upper Brushy Creek WCIDWater0.0170%$81
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9487%$9,271
50 / 100

Moderate opportunity to protest.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $397,692 would pay approximately $2,482 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