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

4154 KINGSLEY AVE, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath2,247 sqftBuilt 2018

Property at a Glance

This home is estimated between $415,102 and $521,225, with a best estimate of $481,795. That places the property below the G799514C - MAYFIELD RANCH median of $523,371, in a neighborhood that declined 9.3% over the past year.

Estimated Value Range

$415,102 $521,225
Best Estimate
$481,795
WCAD Value
$491,382
High Confidence

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

Based on 5 comparable properties in G799514C - MAYFIELD RANCH, this home's estimated market value is between $415,102 and $521,225. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

4648 ARQUES AVE, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 3,295 sqft Built 2021
Raw Value $652,894
Adjusted Value $415,102

Adjusted -$232,314 for 1,048 sqft less living space and -$5,478 for being older. Net adjustment: -$237,792.

4305 ARQUES AVE, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,725 sqft Built 2020
Raw Value $409,164
Adjusted Value $521,225

Adjusted +$115,713 for 522 sqft more living space and -$3,652 for being older. Net adjustment: +$112,061.

4308 ARQUES AVE, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2,178 sqft Built 2019
Raw Value $468,326
Adjusted Value $481,795

Adjusted +$15,295 for 69 sqft more living space and -$1,826 for being older. Net adjustment: +$13,469.

4516 ARQUES AVE, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,478 sqft Built 2019
Raw Value $491,180
Adjusted Value $438,147

Adjusted -$51,207 for 231 sqft less living space and -$1,826 for being older. Net adjustment: -$53,033.

4218 ARQUES AVE, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
2 bed 2 bath 2,217 sqft Built 2020
Raw Value $488,687
Adjusted Value $491,685

Adjusted +$6,650 for 30 sqft more living space and -$3,652 for being older. Net adjustment: +$2,998.

The Neighborhood

This home is valued 6.1% below the G799514C - MAYFIELD RANCH median of $523,371. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 9.3% over the past year.

G799514C - MAYFIELD RANCH

typical
1,093 Properties
$523,371 Median Value
-9.3% YoY Change
1% Have Pool
100% Have Garage
This Home
$491,382
Median
$523,371

This home is -6.1% below the subdivision median.

Tax Analysis

The estimated annual property tax is $10,153 across all districts. With a homestead exemption claimed, that drops to $8,592 — saving $1,561 per year. That's $716 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
Georgetown ISDSchool1.0506%$5,162
Highlands at Mayfield Ranch MUDMUD0.4850%$2,383
Williamson CountyCounty0.3694%$1,815
Williamson County ESD #9 - Round RockESD0.0999%$491
Williamson County FM/RdCounty0.0443%$218
Upper Brushy Creek WCIDWater0.0170%$84
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.0663%$10,153

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $481,795 would pay approximately $3,007 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.

View full property details