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3636 ROSALINA LOOP, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed3 bath1,956 sqftBuilt 2009

Property at a Glance

This home is estimated between $362,023 and $597,428, with a best estimate of $391,788. 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

$362,023 $597,428
Best Estimate
$391,788
WCAD Value
$472,978
High Confidence

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

Based on 5 comparable properties in R493607C - PALOMA LAKE SEC 18, this home's estimated market value is between $362,023 and $597,428. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

3640 ROSALINA LOOP, ROUND ROCK, TX 78665
0.01 mi 100% similar Same subdivision
3 bed 2 bath 2,022 sqft Built 2010
Raw Value $382,255
Adjusted Value $369,572

Adjusted -$13,210 for 66 sqft less living space and +$527 for being newer. Net adjustment: -$12,683.

3644 ROSALINA LOOP, ROUND ROCK, TX 78665
0.02 mi 100% similar Same subdivision
3 bed 2 bath 1,989 sqft Built 2009
Raw Value $368,628
Adjusted Value $362,023

Adjusted -$6,605 for 33 sqft less living space. Net adjustment: -$6,605.

3637 ROSALINA LOOP, ROUND ROCK, TX 78665
0.03 mi 100% similar Same subdivision
4 bed 3 bath 1,140 sqft Built 2009
Raw Value $434,108
Adjusted Value $597,428

Adjusted +$163,320 for 816 sqft more living space. Net adjustment: +$163,320.

3668 ROSALINA LOOP, ROUND ROCK, TX 78665
0.03 mi 100% similar Same subdivision
3 bed 2 bath 1,748 sqft Built 2009
Raw Value $350,157
Adjusted Value $391,788

Adjusted +$41,631 for 208 sqft more living space. Net adjustment: +$41,631.

3648 ROSALINA LOOP, ROUND ROCK, TX 78665
0.03 mi 100% similar Same subdivision
4 bed 3 bath 1,758 sqft Built 2009
Raw Value $501,241
Adjusted Value $540,870

Adjusted +$39,629 for 198 sqft more living space. Net adjustment: +$39,629.

The Neighborhood

This home is valued 21.9% 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
$472,978
Median
$387,915

This home is +21.9% above the subdivision median.

Tax Analysis

The estimated annual property tax is $9,217 across all districts. With a homestead exemption claimed, that drops to $7,879 — saving $1,338 per year. That's $657 per month a buyer should budget. The assessed value increased -1.6% vs the subdivision average of -9.2%. This above-average increase gives a protest opportunity score of 38 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$4,224
Paloma Lakes MUD #2MUD0.4215%$1,994
Williamson CountyCounty0.3694%$1,747
Austin Community Collegespecial0.1034%$489
Williamson County ESD #9 - Round RockESD0.0999%$473
Williamson County FM/RdCounty0.0443%$210
Upper Brushy Creek WCIDWater0.0170%$80
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9487%$9,217
38 / 100

Some opportunity.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $391,788 would pay approximately $2,446 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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