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3648 ROSALINA LOOP, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed3 bath1,758 sqftBuilt 2009

Property at a Glance

This home is estimated between $322,394 and $433,349, with a best estimate of $352,158. That places the property below the R493607C - PALOMA LAKE SEC 18 median of $387,915, in a neighborhood that declined 9.2% over the past year.

Estimated Value Range

$322,394 $433,349
Best Estimate
$352,158
WCAD Value
$501,241
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 $322,394 and $433,349. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

3644 ROSALINA LOOP, ROUND ROCK, TX 78665
0.01 mi 100% similar Same subdivision
3 bed 2 bath 1,989 sqft Built 2009
Raw Value $368,628
Adjusted Value $322,394

Adjusted -$46,234 for 231 sqft less living space. Net adjustment: -$46,234.

3668 ROSALINA LOOP, ROUND ROCK, TX 78665
0.02 mi 100% similar Same subdivision
3 bed 2 bath 1,748 sqft Built 2009
Raw Value $350,157
Adjusted Value $352,158

Adjusted +$2,001 for 10 sqft more living space. Net adjustment: +$2,001.

3640 ROSALINA LOOP, ROUND ROCK, TX 78665
0.02 mi 100% similar Same subdivision
3 bed 2 bath 2,022 sqft Built 2010
Raw Value $382,255
Adjusted Value $329,943

Adjusted -$52,839 for 264 sqft less living space and +$527 for being newer. Net adjustment: -$52,312.

3672 ROSALINA LOOP, ROUND ROCK, TX 78665
0.03 mi 100% similar Same subdivision
3 bed 2 bath 1,950 sqft Built 2008
Raw Value $404,056
Adjusted Value $365,101

Adjusted -$38,428 for 192 sqft less living space and -$527 for being older. Net adjustment: -$38,955.

3636 ROSALINA LOOP, ROUND ROCK, TX 78665
0.03 mi 100% similar Same subdivision
4 bed 3 bath 1,956 sqft Built 2009
Raw Value $472,978
Adjusted Value $433,349

Adjusted -$39,629 for 198 sqft less living space. Net adjustment: -$39,629.

The Neighborhood

This home is valued 29.2% 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
$501,241
Median
$387,915

This home is +29.2% above the subdivision median.

Tax Analysis

The estimated annual property tax is $9,768 across all districts. With a homestead exemption claimed, that drops to $8,425 — saving $1,343 per year. That's $702 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%$4,477
Paloma Lakes MUD #2MUD0.4215%$2,113
Williamson CountyCounty0.3694%$1,852
Austin Community Collegespecial0.1034%$518
Williamson County ESD #9 - Round RockESD0.0999%$501
Williamson County FM/RdCounty0.0443%$222
Upper Brushy Creek WCIDWater0.0170%$85
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9487%$9,768

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $352,158 would pay approximately $2,198 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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