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2933 CASTELLAN LN, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath3,073 sqftBuilt 2013

Property at a Glance

This home is estimated between $621,769 and $748,066, with a best estimate of $672,995. That places the property above the R491507D - PALOMA LAKE PLANTATION, GRANDHAVEN median of $499,831, in a neighborhood that declined 1.7% over the past year.

Estimated Value Range

$621,769 $748,066
Best Estimate
$672,995
WCAD Value
$562,509
Low Confidence

Based on 5 comparable properties(1 in the same subdivision)

There are 5 comparable properties within range, but few are in R491507D - PALOMA LAKE PLANTATION, GRANDHAVEN. The estimated range of $621,769 and $748,066 should be treated as a rough guide.

Comparable Properties (5)

2908 CASTELLAN LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,332 sqft Built 2013
Raw Value $493,678
Adjusted Value $655,270

Adjusted +$161,592 for 741 sqft more living space. Net adjustment: +$161,592.

3 bed 2 bath 1,912 sqft Built 2014
Raw Value $372,963
Adjusted Value $621,769

Adjusted +$253,182 for 1,161 sqft more living space and -$4,376 for being older. Net adjustment: +$248,806.

3 bed 2 bath 2,508 sqft Built 2011
Raw Value $616,103
Adjusted Value $748,066

Adjusted +$123,211 for 565 sqft more living space and +$8,752 for being newer. Net adjustment: +$131,963.

3 bed 2 bath 2,505 sqft Built 2011
Raw Value $542,729
Adjusted Value $675,346

Adjusted +$123,865 for 568 sqft more living space and +$8,752 for being newer. Net adjustment: +$132,617.

4 bed 3 bath 2,150 sqft Built 2014
Raw Value $476,090
Adjusted Value $672,995

Adjusted +$201,281 for 923 sqft more living space and -$4,376 for being older. Net adjustment: +$196,905.

The Neighborhood

This home is valued 12.5% above the R491507D - PALOMA LAKE PLANTATION, GRANDHAVEN median of $499,831. With 695 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 1.7% over the past year.

R491507D - PALOMA LAKE PLANTATION, GRANDHAVEN

typical
695 Properties
$499,831 Median Value
-1.7% YoY Change
1% Have Pool
100% Have Garage
This Home
$562,509
Median
$499,831

This home is +12.5% above the subdivision median.

Tax Analysis

The estimated annual property tax is $10,686 across all districts. With a homestead exemption claimed, that drops to $9,332 — saving $1,354 per year. That's $778 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%$5,024
Paloma Lakes MUD #1MUD0.3725%$2,095
Williamson CountyCounty0.3694%$2,078
Austin Community Collegespecial0.1034%$582
Williamson County ESD #9 - Round RockESD0.0999%$562
Williamson County FM/RdCounty0.0443%$249
Upper Brushy Creek WCIDWater0.0170%$96
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.8997%$10,686

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $672,995 would pay approximately $4,201 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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