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

3042 ALTON PL, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed4 bath3,801 sqftBuilt 2015

Property at a Glance

This home is estimated between $793,600 and $1,274,076, with a best estimate of $992,426. 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

$793,600 $1,274,076
Best Estimate
$992,426
WCAD Value
$1,013,213
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 $793,600 and $1,274,076. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

3001 ALTON PL, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 4 bath 4,085 sqft Built 2017
Raw Value $1,070,660
Adjusted Value $992,426

Adjusted -$78,234 for 284 sqft less living space. Net adjustment: -$78,234.

3033 ALTON PL, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 4 bath 3,213 sqft Built 2015
Raw Value $1,112,098
Adjusted Value $1,274,076

Adjusted +$161,978 for 588 sqft more living space. Net adjustment: +$161,978.

3034 ALTON PL, ROUND ROCK, TX 78665
0.00 mi 96% similar Same subdivision
3 bed 2 bath 3,112 sqft Built 2018
Raw Value $813,340
Adjusted Value $1,003,141

Adjusted +$189,801 for 689 sqft more living space. Net adjustment: +$189,801.

4 bed 3 bath 2,928 sqft Built 2016
Raw Value $553,112
Adjusted Value $793,600

Adjusted +$240,488 for 873 sqft more living space. Net adjustment: +$240,488.

4 bed 3 bath 2,754 sqft Built 2017
Raw Value $619,037
Adjusted Value $907,457

Adjusted +$288,420 for 1,047 sqft more living space. Net adjustment: +$288,420.

The Neighborhood

This home is valued 3.6% above the R501615D - FOREST GROVES median of $977,717. With 29 homes in the subdivision, the property sits in the upper tier. 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
$1,013,213
Median
$977,717

This home is +3.6% above the subdivision median.

Tax Analysis

The estimated annual property tax is $18,230 across all districts. With a homestead exemption claimed, that drops to $16,793 — saving $1,437 per year. That's $1,399 per month a buyer should budget. The assessed value increased +5.4% vs the subdivision average of +1.9%. This above-average increase gives a protest opportunity score of 38 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$9,049
Round RockCity0.3720%$3,769
Williamson CountyCounty0.3694%$3,743
Austin Community Collegespecial0.1034%$1,048
Williamson County FM/RdCounty0.0443%$449
Upper Brushy Creek WCIDWater0.0170%$172
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$18,230
38 / 100

Some opportunity.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $992,426 would pay approximately $6,195 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