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

9500 NORTH LAKE CREEK PKWY, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

3 bed70,000 sqftBuilt 2000

Property at a Glance

This home is estimated between $16,855,526 and $17,095,355, with a best estimate of $16,870,041.

Estimated Value Range

$16,855,526 $17,095,355
Best Estimate
$16,870,041
WCAD Value
$18,759,150
Low Confidence

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

There are 5 comparable properties within range, but none are in R45IR - Research & Development(>30,000 Sf)-lakeline Area. The estimated range of $16,855,526 and $17,095,355 should be treated as a rough guide.

Comparable Properties (5)

3 bed 2 bath 1,874 sqft Built 2001
Raw Value $480,796
Adjusted Value $16,870,041

Adjusted +$16,449,337 for 68,126 sqft more living space and +$101 for being newer and -$60,193 for no garage. Net adjustment: +$16,389,245.

3 bed 2 bath 1,872 sqft Built 2001
Raw Value $472,245
Adjusted Value $16,861,973

Adjusted +$16,449,820 for 68,128 sqft more living space and +$101 for being newer and -$60,193 for no garage. Net adjustment: +$16,389,728.

3 bed 2 bath 1,857 sqft Built 2001
Raw Value $462,177
Adjusted Value $16,855,526

Adjusted +$16,453,441 for 68,143 sqft more living space and +$101 for being newer and -$60,193 for no garage. Net adjustment: +$16,393,349.

3 bed 2 bath 1,649 sqft Built 2001
Raw Value $444,516
Adjusted Value $16,888,088

Adjusted +$16,503,664 for 68,351 sqft more living space and +$101 for being newer and -$60,193 for no garage. Net adjustment: +$16,443,572.

3 bed 2 bath 1,217 sqft Built 2001
Raw Value $547,475
Adjusted Value $17,095,355

Adjusted +$16,607,972 for 68,783 sqft more living space and +$101 for being newer and -$60,193 for no garage. Net adjustment: +$16,547,880.

The Neighborhood

Subdivision comparison data is not available for this property.

Tax Analysis

The estimated annual property tax is $366,046 across all districts. With a homestead exemption claimed, that drops to $341,670 — saving $24,376 per year. That's $28,473 per month a buyer should budget. The assessed value increased +0.8%. This increase gives a protest opportunity score of 70 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$167,538
AustinCity0.5240%$98,301
Williamson CountyCounty0.3694%$69,305
Austin Community Collegespecial0.1034%$19,397
Williamson County FM/RdCounty0.0443%$8,316
Upper Brushy Creek WCIDWater0.0170%$3,189
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9513%$366,046
70 / 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 $16,870,041 would pay approximately $105,302 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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