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405 ALTON CV, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed2 bath3,435 sqftBuilt 2018

Property at a Glance

This home is estimated between $717,993 and $1,334,077, with a best estimate of $981,485. That places the property above the R501615D - FOREST GROVES median of $977,717, in a neighborhood that appreciated 1.9% over the past year.

Estimated Value Range

$717,993 $1,334,077
Best Estimate
$981,485
WCAD Value
$860,699
Medium Confidence

Based on 5 comparable properties(3 in the same subdivision)

Based on 5 comparable properties (3 in the same subdivision, 2 nearby), the estimated range is $717,993 and $1,334,077. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

404 ALTON CV, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 4 bath 3,841 sqft Built 2017
Raw Value $1,093,327
Adjusted Value $981,485

Adjusted -$111,842 for 406 sqft less living space. Net adjustment: -$111,842.

408 ALTON CV, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 4 bath 3,700 sqft Built 2017
Raw Value $903,293
Adjusted Value $830,293

Adjusted -$73,000 for 265 sqft less living space. Net adjustment: -$73,000.

400 ALTON CV, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
5 bed 5 bath 3,190 sqft Built 2016
Raw Value $1,028,840
Adjusted Value $1,096,331

Adjusted +$67,491 for 245 sqft more living space. Net adjustment: +$67,491.

3 bed 2 bath 2,311 sqft Built 2017
Raw Value $408,361
Adjusted Value $717,993

Adjusted +$309,632 for 1,124 sqft more living space. Net adjustment: +$309,632.

3 bed 2 bath 2,934 sqft Built 1992
Raw Value $1,135,872
Adjusted Value $1,334,077

Adjusted +$138,012 for 501 sqft more living space and +$60,193 for having a garage. Net adjustment: +$198,205.

The Neighborhood

This home is valued 12.0% below the R501615D - FOREST GROVES median of $977,717. That positions it competitively for buyers comparing within the neighborhood. The neighborhood appreciated 1.9% over the past year.

R501615D - FOREST GROVES

typical
29 Properties
$977,717 Median Value
+1.9% YoY Change
0% Have Pool
100% Have Garage
This Home
$860,699
Median
$977,717

This home is -12.0% below the subdivision median.

Tax Analysis

The estimated annual property tax is $15,486 across all districts. With a homestead exemption claimed, that drops to $14,077 — saving $1,409 per year. That's $1,173 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%$7,687
Round RockCity0.3720%$3,202
Williamson CountyCounty0.3694%$3,180
Austin Community Collegespecial0.1034%$890
Williamson County FM/RdCounty0.0443%$382
Upper Brushy Creek WCIDWater0.0170%$146
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$15,486

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $981,485 would pay approximately $6,126 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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