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3501 PENELOPE WAY, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed2 bath1,688 sqftBuilt 2010

Property at a Glance

This home is estimated between $338,570 and $538,613, with a best estimate of $510,403. 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

$338,570 $538,613
Best Estimate
$510,403
WCAD Value
$453,831
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 $338,570 and $538,613 should be treated as a rough guide.

Comparable Properties (5)

4 bed 2 bath 1,556 sqft Built 2006
Raw Value $481,596
Adjusted Value $505,905

Adjusted +$26,419 for 132 sqft more living space and -$2,110 for being older. Net adjustment: +$24,309.

4 bed 1,548 sqft Built 2006
Raw Value $484,492
Adjusted Value $510,403

Adjusted +$28,021 for 140 sqft more living space and -$2,110 for being older. Net adjustment: +$25,911.

4 bed 2 bath 1,502 sqft Built 2006
Raw Value $503,496
Adjusted Value $538,613

Adjusted +$37,227 for 186 sqft more living space and -$2,110 for being older. Net adjustment: +$35,117.

4 bed 2 bath 1,502 sqft Built 2006
Raw Value $494,965
Adjusted Value $530,082

Adjusted +$37,227 for 186 sqft more living space and -$2,110 for being older. Net adjustment: +$35,117.

3 bed 2 bath 1,705 sqft Built 2006
Raw Value $344,082
Adjusted Value $338,570

Adjusted -$3,402 for 17 sqft less living space and -$2,110 for being older. Net adjustment: -$5,512.

The Neighborhood

This home is valued 17.0% 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
$453,831
Median
$387,915

This home is +17.0% above the subdivision median.

Tax Analysis

The estimated annual property tax is $8,844 across all districts. With a homestead exemption claimed, that drops to $7,510 — saving $1,334 per year. That's $626 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
Round Rock ISDSchool0.8931%$4,053
Paloma Lakes MUD #2MUD0.4215%$1,913
Williamson CountyCounty0.3694%$1,677
Austin Community Collegespecial0.1034%$469
Williamson County ESD #9 - Round RockESD0.0999%$453
Williamson County FM/RdCounty0.0443%$201
Upper Brushy Creek WCIDWater0.0170%$77
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9487%$8,844

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $510,403 would pay approximately $3,186 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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