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501 KOLBO DR, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath2,534 sqftBuilt 2018

Property at a Glance

This home is estimated between $564,927 and $851,190, with a best estimate of $605,651. 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

$564,927 $851,190
Best Estimate
$605,651
WCAD Value
$587,214
High Confidence

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

Based on 5 comparable properties in R500515C - FOREST GROVE, this home's estimated market value is between $564,927 and $851,190. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

601 KOLBO DR, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,738 sqft Built 2018
Raw Value $659,834
Adjusted Value $605,651

Adjusted -$54,183 for 204 sqft less living space. Net adjustment: -$54,183.

608 KOLBO DR, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,253 sqft Built 2018
Raw Value $756,510
Adjusted Value $831,145

Adjusted +$74,635 for 281 sqft more living space. Net adjustment: +$74,635.

616 KOLBO DR, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 2 bath 2,346 sqft Built 2018
Raw Value $801,256
Adjusted Value $851,190

Adjusted +$49,934 for 188 sqft more living space. Net adjustment: +$49,934.

613 KOLBO DR, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,738 sqft Built 2018
Raw Value $619,110
Adjusted Value $564,927

Adjusted -$54,183 for 204 sqft less living space. Net adjustment: -$54,183.

527 KOLBO DR, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 3 bath 3,111 sqft Built 2018
Raw Value $733,639
Adjusted Value $580,385

Adjusted -$153,254 for 577 sqft less living space. Net adjustment: -$153,254.

The Neighborhood

This home is valued 14.4% 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

typical
197 Properties
$686,297 Median Value
-2.9% YoY Change
1% Have Pool
100% Have Garage
This Home
$587,214
Median
$686,297

This home is -14.4% below the subdivision median.

Tax Analysis

The estimated annual property tax is $10,566 across all districts. With a homestead exemption claimed, that drops to $9,207 — saving $1,359 per year. That's $767 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%$5,244
Round RockCity0.3720%$2,184
Williamson CountyCounty0.3694%$2,169
Austin Community Collegespecial0.1034%$607
Williamson County FM/RdCounty0.0443%$260
Upper Brushy Creek WCIDWater0.0170%$100
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$10,566

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $605,651 would pay approximately $3,780 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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