Beta Williamson County, TX only — data and coverage are limited during early access.

3400 CORTES PL, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath2,350 sqftBuilt 2009

Property at a Glance

This home is estimated between $397,056 and $604,798, with a best estimate of $410,815. That places the property below 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

$397,056 $604,798
Best Estimate
$410,815
WCAD Value
$437,615
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 $397,056 and $604,798. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

3431 CORTES PL, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,787 sqft Built 2007
Raw Value $495,923
Adjusted Value $604,798

Adjusted +$122,070 for 563 sqft more living space and -$13,195 for being older. Net adjustment: +$108,875.

3304 CORTES PL, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,625 sqft Built 2010
Raw Value $461,471
Adjusted Value $408,443

Adjusted -$59,626 for 275 sqft less living space and +$6,598 for being newer. Net adjustment: -$53,028.

3436 CORTES PL, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,660 sqft Built 2007
Raw Value $477,465
Adjusted Value $397,056

Adjusted -$67,214 for 310 sqft less living space and -$13,195 for being older. Net adjustment: -$80,409.

3321 CORTES PL, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,741 sqft Built 2012
Raw Value $475,799
Adjusted Value $410,815

Adjusted -$84,777 for 391 sqft less living space and +$19,793 for being newer. Net adjustment: -$64,984.

3344 CORTES PL, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,159 sqft Built 2012
Raw Value $464,768
Adjusted Value $525,974

Adjusted +$41,413 for 191 sqft more living space and +$19,793 for being newer. Net adjustment: +$61,206.

The Neighborhood

This home is valued 5.4% below the R492607C - Paloma Lake - Sec 17A & 17B median of $462,814. That positions it competitively for buyers comparing within the neighborhood. 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
$437,615
Median
$462,814

This home is -5.4% below the subdivision median.

Tax Analysis

The estimated annual property tax is $8,528 across all districts. With a homestead exemption claimed, that drops to $7,197 — saving $1,331 per year. That's $600 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%$3,908
Paloma Lakes MUD #2MUD0.4215%$1,845
Williamson CountyCounty0.3694%$1,617
Austin Community Collegespecial0.1034%$452
Williamson County ESD #9 - Round RockESD0.0999%$437
Williamson County FM/RdCounty0.0443%$194
Upper Brushy Creek WCIDWater0.0170%$74
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9487%$8,528

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $410,815 would pay approximately $2,564 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 4/19/2026.

View full property details