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15222 RR 620, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

3 bed278,392 sqftBuilt 2021

Property at a Glance

This home is estimated between $67,470,767 and $67,591,437, with a best estimate of $67,481,504.

Estimated Value Range

$67,470,767 $67,591,437
Best Estimate
$67,481,504
WCAD Value
$55,809,267
Low Confidence

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

There are 5 comparable properties within range, but none are in R30QA - Apartment Complex-west Round Rock. The estimated range of $67,470,767 and $67,591,437 should be treated as a rough guide.

Comparable Properties (5)

3 bed 2 bath 1,128 sqft Built 1999
Raw Value $530,936
Adjusted Value $67,475,382

Adjusted +$66,946,671 for 277,264 sqft more living space and -$2,225 for being older. Net adjustment: +$66,944,446.

3 bed 2 bath 1,128 sqft Built 1999
Raw Value $537,058
Adjusted Value $67,481,504

Adjusted +$66,946,671 for 277,264 sqft more living space and -$2,225 for being older. Net adjustment: +$66,944,446.

3 bed 2 bath 1,128 sqft Built 1999
Raw Value $526,321
Adjusted Value $67,470,767

Adjusted +$66,946,671 for 277,264 sqft more living space and -$2,225 for being older. Net adjustment: +$66,944,446.

3 bed 2 bath 1,120 sqft Built 1999
Raw Value $645,060
Adjusted Value $67,591,437

Adjusted +$66,948,602 for 277,272 sqft more living space and -$2,225 for being older. Net adjustment: +$66,946,377.

3 bed 2 bath 1,051 sqft Built 1999
Raw Value $534,748
Adjusted Value $67,497,786

Adjusted +$66,965,263 for 277,341 sqft more living space and -$2,225 for being older. Net adjustment: +$66,963,038.

The Neighborhood

Subdivision comparison data is not available for this property.

Tax Analysis

The estimated annual property tax is $852,362 across all districts. With a homestead exemption claimed, that drops to $840,802 — saving $11,560 per year. That's $70,067 per month a buyer should budget. The assessed value increased +10.5%. This increase gives a protest opportunity score of 85 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$498,433
Williamson CountyCounty0.3694%$206,186
Austin Community Collegespecial0.1034%$57,707
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$55,809
Williamson County FM/RdCounty0.0443%$24,740
Upper Brushy Creek WCIDWater0.0170%$9,488
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.5273%$852,362
85 / 100

There may be a strong case to protest this appraisal.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $67,481,504 would pay approximately $421,217 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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