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12521 SPLIT RAIL PKWY, AUSTIN, TX 78750

AUSTIN, 78750 — williamson County

4 bed2 bath2,007 sqftBuilt 1978

Property at a Glance

This home is estimated between $450,591 and $727,072, with a best estimate of $576,568. 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

$450,591 $727,072
Best Estimate
$576,568
WCAD Value
$497,428
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 $450,591 and $727,072. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

12519 SPLIT RAIL PKWY, AUSTIN, TX 78750
0.02 mi 100% similar Same subdivision
4 bed 2 bath 1,586 sqft Built 1978
Raw Value $492,100
Adjusted Value $596,623

Adjusted +$104,523 for 421 sqft more living space. Net adjustment: +$104,523.

12523 SPLIT RAIL PKWY, AUSTIN, TX 78750
0.03 mi 100% similar Same subdivision
4 bed 2 bath 1,952 sqft Built 1978
Raw Value $443,031
Adjusted Value $456,686

Adjusted +$13,655 for 55 sqft more living space. Net adjustment: +$13,655.

12517 SPLIT RAIL PKWY, AUSTIN, TX 78750
0.03 mi 100% similar Same subdivision
4 bed 2 bath 1,560 sqft Built 1978
Raw Value $465,589
Adjusted Value $576,568

Adjusted +$110,979 for 447 sqft more living space. Net adjustment: +$110,979.

12525 SPLIT RAIL PKWY, AUSTIN, TX 78750
0.04 mi 100% similar Same subdivision
3 bed 2 bath 2,020 sqft Built 1978
Raw Value $453,819
Adjusted Value $450,591

Adjusted -$3,228 for 13 sqft less living space. Net adjustment: -$3,228.

12402 MOSSY BARK TRL, AUSTIN, TX 78750
0.06 mi 100% similar Same subdivision
4 bed 2 bath 1,341 sqft Built 1978
Raw Value $561,721
Adjusted Value $727,072

Adjusted +$165,351 for 666 sqft more living space. Net adjustment: +$165,351.

The Neighborhood

This home is valued 22.1% 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

above average
1,663 Properties
$407,368 Median Value
+0.2% YoY Change
3% Have Pool
95% Have Garage
This Home
$497,428
Median
$407,368

This home is +22.1% above the subdivision median.

Tax Analysis

The estimated annual property tax is $10,325 across all districts. With a homestead exemption claimed, that drops to $8,461 — saving $1,864 per year. That's $705 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%$4,443
AustinCity0.5240%$2,607
Williamson CountyCounty0.3694%$1,838
Anderson Mill Limited Districtspecial0.1243%$619
Austin Community Collegespecial0.1034%$514
Williamson County FM/RdCounty0.0443%$221
Upper Brushy Creek WCIDWater0.0170%$85
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.0756%$10,325

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $576,568 would pay approximately $3,599 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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