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

424 CHISHOLM VALLEY DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath1,734 sqftBuilt 1977

Property at a Glance

This home is estimated between $280,918 and $597,063, with a best estimate of $371,104. That places the property below the R120X - Round Rock West Above 45 - Duplex median of $434,714, in a neighborhood that declined 1.8% over the past year.

Estimated Value Range

$280,918 $597,063
Best Estimate
$371,104
WCAD Value
$352,097
Low Confidence

Based on 5 comparable properties(0 in the same subdivision)

There are 5 comparable properties within range, but none are in R120X - Round Rock West Above 45 - Duplex. The estimated range of $280,918 and $597,063 should be treated as a rough guide.

Comparable Properties (5)

3 bed 2 bath 1,810 sqft Built 1977
Raw Value $276,505
Adjusted Value $280,918

Adjusted -$15,453 for 76 sqft less living space and +$19,866 for having a garage. Net adjustment: +$4,413.

3 bed 2 bath 1,555 sqft Built 1977
Raw Value $334,708
Adjusted Value $371,104

Adjusted +$36,396 for 179 sqft more living space. Net adjustment: +$36,396.

3 bed 1,660 sqft Built 1978
Raw Value $271,885
Adjusted Value $284,426

Adjusted +$15,046 for 74 sqft more living space and -$2,505 for being older. Net adjustment: +$12,541.

3 bed 2 bath 2,030 sqft Built 1979
Raw Value $542,422
Adjusted Value $477,227

Adjusted -$60,185 for 296 sqft less living space and -$5,010 for being older. Net adjustment: -$65,195.

4 bed 2 bath 1,647 sqft Built 1976
Raw Value $576,868
Adjusted Value $597,063

Adjusted +$17,690 for 87 sqft more living space and +$2,505 for being newer. Net adjustment: +$20,195.

The Neighborhood

This home is valued 19.0% below the R120X - Round Rock West Above 45 - Duplex median of $434,714. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 1.8% over the past year.

R120X - Round Rock West Above 45 - Duplex

below average
295 Properties
$434,714 Median Value
-1.8% YoY Change
0% Have Pool
84% Have Garage
This Home
$352,097
Median
$434,714

This home is -19.0% below the subdivision median.

Tax Analysis

The estimated annual property tax is $6,335 across all districts. With a homestead exemption claimed, that drops to $5,020 — saving $1,315 per year. That's $418 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%$3,145
Round RockCity0.3720%$1,310
Williamson CountyCounty0.3694%$1,301
Austin Community Collegespecial0.1034%$364
Williamson County FM/RdCounty0.0443%$156
Upper Brushy Creek WCIDWater0.0170%$60
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$6,335

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $371,104 would pay approximately $2,316 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