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3420 ST CHRISTOPHER CT, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath2,993 sqftBuilt 2009

Property at a Glance

This home is estimated between $503,552 and $596,917, with a best estimate of $537,902. That places the property above the R492607C - Paloma Lake - Sec 17A & 17B median of $462,814, in a neighborhood that declined 4.4% over the past year.

Estimated Value Range

$503,552 $596,917
Best Estimate
$537,902
WCAD Value
$496,289
High Confidence

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

Based on 5 comparable properties in R492607C - Paloma Lake - Sec 17A & 17B, this home's estimated market value is between $503,552 and $596,917. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

3401 ST CHRISTOPHER CT, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,362 sqft Built 2010
Raw Value $446,989
Adjusted Value $590,401

Adjusted +$136,814 for 631 sqft more living space and +$6,598 for being newer. Net adjustment: +$143,412.

3408 ST CHRISTOPHER CT, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,187 sqft Built 2008
Raw Value $428,758
Adjusted Value $596,917

Adjusted +$174,757 for 806 sqft more living space and -$6,598 for being older. Net adjustment: +$168,159.

3416 ST CHRISTOPHER CT, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,629 sqft Built 2008
Raw Value $465,577
Adjusted Value $537,902

Adjusted +$78,923 for 364 sqft more living space and -$6,598 for being older. Net adjustment: +$72,325.

3409 ST CHRISTOPHER CT, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 3,001 sqft Built 2010
Raw Value $498,689
Adjusted Value $503,552

Adjusted -$1,735 for 8 sqft less living space and +$6,598 for being newer. Net adjustment: +$4,863.

3404 ST CHRISTOPHER CT, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,670 sqft Built 2009
Raw Value $465,069
Adjusted Value $535,102

Adjusted +$70,033 for 323 sqft more living space. Net adjustment: +$70,033.

The Neighborhood

This home is valued 7.2% above the R492607C - Paloma Lake - Sec 17A & 17B median of $462,814. With 292 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 4.4% over the past year.

R492607C - Paloma Lake - Sec 17A & 17B

typical
292 Properties
$462,814 Median Value
-4.4% YoY Change
0% Have Pool
100% Have Garage
This Home
$496,289
Median
$462,814

This home is +7.2% above the subdivision median.

Tax Analysis

The estimated annual property tax is $9,671 across all districts. With a homestead exemption claimed, that drops to $8,329 — saving $1,342 per year. That's $694 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%$4,432
Paloma Lakes MUD #2MUD0.4215%$2,092
Williamson CountyCounty0.3694%$1,834
Austin Community Collegespecial0.1034%$513
Williamson County ESD #9 - Round RockESD0.0999%$496
Williamson County FM/RdCounty0.0443%$220
Upper Brushy Creek WCIDWater0.0170%$84
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9487%$9,671

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $537,902 would pay approximately $3,358 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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