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535 KOLBO DR, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed3 bath1,620 sqftBuilt 2016

Property at a Glance

This home is estimated between $304,935 and $546,722, with a best estimate of $352,833. That places the property below the R500515C - FOREST GROVE median of $686,297, in a neighborhood that declined 2.9% over the past year.

Estimated Value Range

$304,935 $546,722
Best Estimate
$352,833
WCAD Value
$731,555
Low Confidence

Based on 5 comparable properties(0 in the same subdivision)

There are 5 comparable properties within range, but none are in R500515C - FOREST GROVE. The estimated range of $304,935 and $546,722 should be treated as a rough guide.

Comparable Properties (5)

4 bed 3 bath 1,887 sqft Built 2016
Raw Value $423,749
Adjusted Value $352,833

Adjusted -$70,916 for 267 sqft less living space. Net adjustment: -$70,916.

4 bed 3 bath 1,658 sqft Built 2011
Raw Value $539,208
Adjusted Value $546,722

Adjusted -$10,093 for 38 sqft less living space and +$17,607 for being newer. Net adjustment: +$7,514.

4 bed 3 bath 1,575 sqft Built 2017
Raw Value $499,392
Adjusted Value $507,823

Adjusted +$11,952 for 45 sqft more living space and -$3,521 for being older. Net adjustment: +$8,431.

4 bed 3 bath 1,920 sqft Built 2016
Raw Value $384,616
Adjusted Value $304,935

Adjusted -$79,681 for 300 sqft less living space. Net adjustment: -$79,681.

3 bed 2 bath 1,706 sqft Built 2017
Raw Value $347,933
Adjusted Value $321,570

Adjusted -$22,842 for 86 sqft less living space and -$3,521 for being older. Net adjustment: -$26,363.

The Neighborhood

This home is valued 6.6% above the R500515C - FOREST GROVE median of $686,297. With 197 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 2.9% over the past year.

R500515C - FOREST GROVE

typical
197 Properties
$686,297 Median Value
-2.9% YoY Change
1% Have Pool
100% Have Garage
This Home
$731,555
Median
$686,297

This home is +6.6% above the subdivision median.

Tax Analysis

The estimated annual property tax is $13,163 across all districts. With a homestead exemption claimed, that drops to $11,777 — saving $1,386 per year. That's $981 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%$6,534
Round RockCity0.3720%$2,721
Williamson CountyCounty0.3694%$2,703
Austin Community Collegespecial0.1034%$756
Williamson County FM/RdCounty0.0443%$324
Upper Brushy Creek WCIDWater0.0170%$124
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$13,163

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $352,833 would pay approximately $2,202 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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