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3575 ROCKIN J RD, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed12,840 sqftBuilt 1981

Property at a Glance

This home is estimated between $1,825,898 and $2,986,163, with a best estimate of $2,455,023. That places the property above the R20IS - Storage Warehouse-e Round Rock median of $2,255,012, in a neighborhood that declined 5.4% over the past year.

Estimated Value Range

$1,825,898 $2,986,163
Best Estimate
$2,455,023
WCAD Value
$1,921,193
Low Confidence

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

There are 5 comparable properties within range, but none are in R20IS - Storage Warehouse-e Round Rock. The estimated range of $1,825,898 and $2,986,163 should be treated as a rough guide.

Comparable Properties (5)

3 bed 21,632 sqft Built 1998
Raw Value $3,599,240
Adjusted Value $1,825,898

Adjusted -$1,773,342 for 8,792 sqft less living space. Net adjustment: -$1,773,342.

3 bed 1,945 sqft Built 1984
Raw Value $788,646
Adjusted Value $2,986,163

Adjusted +$2,197,517 for 10,895 sqft more living space. Net adjustment: +$2,197,517.

3 bed 2 bath 2,010 sqft Built 2005
Raw Value $325,308
Adjusted Value $2,449,521

Adjusted +$2,184,406 for 10,830 sqft more living space and -$60,193 for no garage. Net adjustment: +$2,124,213.

3 bed 2 bath 1,965 sqft Built 2006
Raw Value $321,733
Adjusted Value $2,455,023

Adjusted +$2,193,483 for 10,875 sqft more living space and -$60,193 for no garage. Net adjustment: +$2,133,290.

3 bed 2 bath 1,360 sqft Built 2004
Raw Value $286,945
Adjusted Value $2,542,263

Adjusted +$2,315,511 for 11,480 sqft more living space and -$60,193 for no garage. Net adjustment: +$2,255,318.

The Neighborhood

This home is valued 14.8% below the R20IS - Storage Warehouse-e Round Rock median of $2,255,012. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 5.4% over the past year.

R20IS - Storage Warehouse-e Round Rock

typical
12 Properties
$2,255,012 Median Value
-5.4% YoY Change
0% Have Pool
0% Have Garage
This Home
$1,921,193
Median
$2,255,012

This home is -14.8% below the subdivision median.

Tax Analysis

The estimated annual property tax is $34,568 across all districts. With a homestead exemption claimed, that drops to $32,962 — saving $1,606 per year. That's $2,747 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%$17,158
Round RockCity0.3720%$7,147
Williamson CountyCounty0.3694%$7,098
Austin Community Collegespecial0.1034%$1,987
Williamson County FM/RdCounty0.0443%$852
Upper Brushy Creek WCIDWater0.0170%$327
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$34,568

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $2,455,023 would pay approximately $15,324 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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