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

11001 HILLSIDE OAK LN, AUSTIN, TX 78750

AUSTIN, 78750 — williamson County

4 bed2 bath1,298 sqftBuilt 1977

Property at a Glance

This home is estimated between $336,288 and $601,592, with a best estimate of $341,448. That places the property below the R353476G - Anderson Mill median of $407,368, in a neighborhood that appreciated 0.2% over the past year.

Estimated Value Range

$336,288 $601,592
Best Estimate
$341,448
WCAD Value
$446,197
Low Confidence

Based on 5 comparable properties(2 in the same subdivision)

There are 5 comparable properties within range, but few are in R353476G - Anderson Mill. The estimated range of $336,288 and $601,592 should be treated as a rough guide.

Comparable Properties (5)

11001 MARBLE RD, AUSTIN, TX 78750
0.40 mi 100% similar Same subdivision
4 bed 2 bath 1,087 sqft Built 1980
Raw Value $560,835
Adjusted Value $601,592

Adjusted +$52,386 for 211 sqft more living space and -$11,629 for being older. Net adjustment: +$40,757.

10115 OSPREY CT, AUSTIN, TX 78750
0.89 mi 100% similar Same subdivision
2 bed 2 bath 1,373 sqft Built 1977
Raw Value $354,909
Adjusted Value $336,288

Adjusted -$18,621 for 75 sqft less living space. Net adjustment: -$18,621.

3 bed 2 bath 1,348 sqft Built 1981
Raw Value $421,137
Adjusted Value $393,218

Adjusted -$12,414 for 50 sqft less living space and -$15,505 for being older. Net adjustment: -$27,919.

3 bed 2 bath 1,364 sqft Built 1981
Raw Value $371,023
Adjusted Value $339,132

Adjusted -$16,386 for 66 sqft less living space and -$15,505 for being older. Net adjustment: -$31,891.

3 bed 2 bath 1,453 sqft Built 1981
Raw Value $395,435
Adjusted Value $341,448

Adjusted -$38,482 for 155 sqft less living space and -$15,505 for being older. Net adjustment: -$53,987.

The Neighborhood

This home is valued 9.5% above the R353476G - Anderson Mill median of $407,368. With 1,663 homes in the subdivision, the property sits in the upper tier. The neighborhood appreciated 0.2% over the past year.

R353476G - Anderson Mill

typical
1,663 Properties
$407,368 Median Value
+0.2% YoY Change
3% Have Pool
95% Have Garage
This Home
$446,197
Median
$407,368

This home is +9.5% above the subdivision median.

Tax Analysis

The estimated annual property tax is $9,261 across all districts. With a homestead exemption claimed, that drops to $7,461 — saving $1,800 per year. That's $622 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%$3,985
AustinCity0.5240%$2,338
Williamson CountyCounty0.3694%$1,648
Anderson Mill Limited Districtspecial0.1243%$555
Austin Community Collegespecial0.1034%$461
Williamson County FM/RdCounty0.0443%$198
Upper Brushy Creek WCIDWater0.0170%$76
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.0756%$9,261

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $341,448 would pay approximately $2,131 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