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

1637 CARDINAL LN, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

5 bed4 bath1,821 sqftBuilt 2024

Property at a Glance

This home is estimated between $740,381 and $801,093, with a best estimate of $773,300. That places the property below the R294523A-Sauls Ranch East median of $852,382, in a neighborhood that appreciated 371.1% over the past year.

Estimated Value Range

$740,381 $801,093
Best Estimate
$773,300
WCAD Value
$870,672
High Confidence

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

Based on 5 comparable properties in R294523A-Sauls Ranch East, this home's estimated market value is between $740,381 and $801,093. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

1410 CARDINAL LN, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,787 sqft Built 2025
Raw Value $780,722
Adjusted Value $801,093

Adjusted +$14,136 for 34 sqft more living space and +$6,235 for having a pool. Net adjustment: +$20,371.

1508 CARDINAL LN, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,112 sqft Built 2024
Raw Value $871,434
Adjusted Value $756,681

Adjusted -$120,988 for 291 sqft less living space and +$6,235 for having a pool. Net adjustment: -$114,753.

1641 CARDINAL LN, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 4 bath 2,074 sqft Built 2024
Raw Value $839,335
Adjusted Value $740,381

Adjusted -$105,189 for 253 sqft less living space and +$6,235 for having a pool. Net adjustment: -$98,954.

1432 CARDINAL LN, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,002 sqft Built 2023
Raw Value $842,318
Adjusted Value $773,300

Adjusted -$75,253 for 181 sqft less living space and +$6,235 for having a pool. Net adjustment: -$69,018.

1601 CARDINAL LN, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,732 sqft Built 2025
Raw Value $738,228
Adjusted Value $781,466

Adjusted +$37,003 for 89 sqft more living space and +$6,235 for having a pool. Net adjustment: +$43,238.

The Neighborhood

This home is valued 2.1% above the R294523A-Sauls Ranch East median of $852,382. With 144 homes in the subdivision, the property sits in the upper tier. The neighborhood appreciated 371.1% over the past year.

R294523A-Sauls Ranch East

typical
144 Properties
$852,382 Median Value
+371.1% YoY Change
1% Have Pool
100% Have Garage
This Home
$870,672
Median
$852,382

This home is +2.1% above the subdivision median.

Tax Analysis

The estimated annual property tax is $15,666 across all districts. With a homestead exemption claimed, that drops to $14,255 — saving $1,411 per year. That's $1,188 per month a buyer should budget. The assessed value increased +123.8% vs the subdivision average of +371.1%. This increase gives a protest opportunity score of 50 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$7,776
Round RockCity0.3720%$3,239
Williamson CountyCounty0.3694%$3,217
Austin Community Collegespecial0.1034%$900
Williamson County FM/RdCounty0.0443%$386
Upper Brushy Creek WCIDWater0.0170%$148
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$15,666
50 / 100

Moderate opportunity to protest.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $773,300 would pay approximately $4,827 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