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

8585 SPICEWOOD SPRINGS RD, AUSTIN, TX 78759

AUSTIN, 78759 — williamson County

3 bed272,951 sqftBuilt 1996

Property at a Glance

This home is estimated between $35,402,378 and $66,154,026, with a best estimate of $65,917,743. That places the property above the R45RFS - COMM REF ACCT - ENTITY LINE SPLIT median of $3,319,895, in a neighborhood that appreciated 1.0% over the past year.

Estimated Value Range

$35,402,378 $66,154,026
Best Estimate
$65,917,743
WCAD Value
$15,834,507
Low Confidence

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

There are 5 comparable properties within range, but none are in R45RFS - COMM REF ACCT - ENTITY LINE SPLIT. The estimated range of $35,402,378 and $66,154,026 should be treated as a rough guide.

Comparable Properties (5)

3 bed 272,951 sqft Built 1996
Raw Value $35,402,378
Adjusted Value $35,402,378

This comparable closely matches the subject property's features.

3 bed 201,744 sqft Built 1987
Raw Value $30,224,680
Adjusted Value $47,477,221

Adjusted +$17,193,258 for 71,207 sqft more living space and -$910 for being older and +$60,193 for having a garage. Net adjustment: +$17,252,541.

3 bed 2 bath 1,676 sqft Built 1998
Raw Value $416,942
Adjusted Value $65,917,743

Adjusted +$65,500,599 for 271,275 sqft more living space and +$202 for being newer. Net adjustment: +$65,500,801.

3 bed 2 bath 1,645 sqft Built 1998
Raw Value $414,596
Adjusted Value $65,922,882

Adjusted +$65,508,084 for 271,306 sqft more living space and +$202 for being newer. Net adjustment: +$65,508,286.

3 bed 2 bath 1,021 sqft Built 1998
Raw Value $495,072
Adjusted Value $66,154,026

Adjusted +$65,658,752 for 271,930 sqft more living space and +$202 for being newer. Net adjustment: +$65,658,954.

The Neighborhood

This home is valued 377.0% above the R45RFS - COMM REF ACCT - ENTITY LINE SPLIT median of $3,319,895. With 7 homes in the subdivision, the property sits in the upper tier. The neighborhood appreciated 1.0% over the past year.

R45RFS - COMM REF ACCT - ENTITY LINE SPLIT

outlier high
7 Properties
$3,319,895 Median Value
+1.0% YoY Change
0% Have Pool
14% Have Garage
This Home
$15,834,507
Median
$3,319,895

This home is +377.0% above the subdivision median.

Tax Analysis

The estimated annual property tax is $0 across all districts. That's $0 per month. The assessed value increased +3.2% vs the subdivision average of +1.0%. This above-average increase gives a protest opportunity score of 31 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Road District (REF)Road0.0000%$0
Total Annual Tax0.0000%$0
31 / 100

Some opportunity.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $65,917,743 would pay approximately $411,457 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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