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504 KOLBO DR, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath2,170 sqftBuilt 2017

Property at a Glance

This home is estimated between $347,809 and $498,983, with a best estimate of $392,161. 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

$347,809 $498,983
Best Estimate
$392,161
WCAD Value
$506,852
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 $347,809 and $498,983 should be treated as a rough guide.

Comparable Properties (5)

3 bed 2 bath 2,208 sqft Built 2014
Raw Value $431,179
Adjusted Value $431,650

Adjusted -$10,093 for 38 sqft less living space and +$10,564 for being newer. Net adjustment: +$471.

3 bed 2 bath 2,448 sqft Built 2017
Raw Value $421,647
Adjusted Value $347,809

Adjusted -$73,838 for 278 sqft less living space. Net adjustment: -$73,838.

3 bed 1,985 sqft Built 2018
Raw Value $346,545
Adjusted Value $392,161

Adjusted +$49,137 for 185 sqft more living space and -$3,521 for being older. Net adjustment: +$45,616.

3 bed 2 bath 2,087 sqft Built 2017
Raw Value $357,672
Adjusted Value $379,717

Adjusted +$22,045 for 83 sqft more living space. Net adjustment: +$22,045.

3 bed 2 bath 1,847 sqft Built 2017
Raw Value $413,193
Adjusted Value $498,983

Adjusted +$85,790 for 323 sqft more living space. Net adjustment: +$85,790.

The Neighborhood

This home is valued 26.1% below the R500515C - FOREST GROVE median of $686,297. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 2.9% over the past year.

R500515C - FOREST GROVE

below average
197 Properties
$686,297 Median Value
-2.9% YoY Change
1% Have Pool
100% Have Garage
This Home
$506,852
Median
$686,297

This home is -26.1% below the subdivision median.

Tax Analysis

The estimated annual property tax is $9,120 across all districts. With a homestead exemption claimed, that drops to $7,776 — saving $1,344 per year. That's $648 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%$4,527
Round RockCity0.3720%$1,885
Williamson CountyCounty0.3694%$1,873
Austin Community Collegespecial0.1034%$524
Williamson County FM/RdCounty0.0443%$225
Upper Brushy Creek WCIDWater0.0170%$86
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$9,120

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $392,161 would pay approximately $2,448 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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