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12309 SPLIT RAIL PKWY, AUSTIN, TX 78750

AUSTIN, 78750 — williamson County

3 bed2 bath2,171 sqftBuilt 1975

Property at a Glance

This home is estimated between $492,403 and $581,136, with a best estimate of $519,878. That places the property above the R353476G - Anderson Mill median of $407,368, in a neighborhood that appreciated 0.2% over the past year.

Estimated Value Range

$492,403 $581,136
Best Estimate
$519,878
WCAD Value
$458,346
High Confidence

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

Based on 5 comparable properties in R353476G - Anderson Mill, this home's estimated market value is between $492,403 and $581,136. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

12307 SPLIT RAIL PKWY, AUSTIN, TX 78750
0.01 mi 100% similar Same subdivision
4 bed 2 bath 1,948 sqft Built 1975
Raw Value $437,038
Adjusted Value $492,403

Adjusted +$55,365 for 223 sqft more living space. Net adjustment: +$55,365.

12311 SPLIT RAIL PKWY, AUSTIN, TX 78750
0.02 mi 100% similar Same subdivision
3 bed 2 bath 1,619 sqft Built 1975
Raw Value $444,089
Adjusted Value $581,136

Adjusted +$137,047 for 552 sqft more living space. Net adjustment: +$137,047.

12305 SPLIT RAIL PKWY, AUSTIN, TX 78750
0.03 mi 100% similar Same subdivision
3 bed 2 bath 1,566 sqft Built 1975
Raw Value $370,003
Adjusted Value $520,209

Adjusted +$150,206 for 605 sqft more living space. Net adjustment: +$150,206.

12313 SPLIT RAIL PKWY, AUSTIN, TX 78750
0.03 mi 100% similar Same subdivision
3 bed 2 bath 1,603 sqft Built 1975
Raw Value $377,851
Adjusted Value $518,871

Adjusted +$141,020 for 568 sqft more living space. Net adjustment: +$141,020.

12306 SPLIT RAIL PKWY, AUSTIN, TX 78750
0.03 mi 100% similar Same subdivision
3 bed 2 bath 1,559 sqft Built 1975
Raw Value $367,934
Adjusted Value $519,878

Adjusted +$151,944 for 612 sqft more living space. Net adjustment: +$151,944.

The Neighborhood

This home is valued 12.5% 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
$458,346
Median
$407,368

This home is +12.5% above the subdivision median.

Tax Analysis

The estimated annual property tax is $9,514 across all districts. With a homestead exemption claimed, that drops to $7,698 — saving $1,816 per year. That's $642 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%$4,093
AustinCity0.5240%$2,402
Williamson CountyCounty0.3694%$1,693
Anderson Mill Limited Districtspecial0.1243%$570
Austin Community Collegespecial0.1034%$474
Williamson County FM/RdCounty0.0443%$203
Upper Brushy Creek WCIDWater0.0170%$78
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.0756%$9,514

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $519,878 would pay approximately $3,245 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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