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12110 GREY ROCK LN, AUSTIN, TX 78750

AUSTIN, 78750 — williamson County

3 bed2 bath1,505 sqftBuilt 1977

Property at a Glance

This home is estimated between $312,979 and $436,079, with a best estimate of $363,860. That places the property below the R3P5480G - Anderson Mill 12,16 - 20 - Partially in TCAD median of $387,608, in a neighborhood that declined 7.3% over the past year.

Estimated Value Range

$312,979 $436,079
Best Estimate
$363,860
WCAD Value
$355,147
High Confidence

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

Based on 5 comparable properties in R3P5480G - Anderson Mill 12,16 - 20 - Partially in TCAD, this home's estimated market value is between $312,979 and $436,079. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

12112 GREY ROCK LN, AUSTIN, TX 78750
0.01 mi 100% similar Same subdivision
3 bed 2 bath 1,754 sqft Built 1977
Raw Value $374,313
Adjusted Value $312,979

Adjusted -$61,334 for 249 sqft less living space. Net adjustment: -$61,334.

12108 GREY ROCK LN, AUSTIN, TX 78750
0.01 mi 100% similar Same subdivision
3 bed 2 bath 1,404 sqft Built 1977
Raw Value $338,981
Adjusted Value $363,860

Adjusted +$24,879 for 101 sqft more living space. Net adjustment: +$24,879.

12114 GREY ROCK LN, AUSTIN, TX 78750
0.02 mi 100% similar Same subdivision
3 bed 2 bath 1,668 sqft Built 1977
Raw Value $372,140
Adjusted Value $331,989

Adjusted -$40,151 for 163 sqft less living space. Net adjustment: -$40,151.

12106 GREY ROCK LN, AUSTIN, TX 78750
0.02 mi 100% similar Same subdivision
4 bed 2 bath 1,668 sqft Built 1977
Raw Value $446,443
Adjusted Value $406,292

Adjusted -$40,151 for 163 sqft less living space. Net adjustment: -$40,151.

12113 ACORN CREEK TRL, AUSTIN, TX 78750
0.02 mi 100% similar Same subdivision
3 bed 2 bath 1,410 sqft Built 1977
Raw Value $412,678
Adjusted Value $436,079

Adjusted +$23,401 for 95 sqft more living space. Net adjustment: +$23,401.

The Neighborhood

This home is valued 8.4% below the R3P5480G - Anderson Mill 12,16 - 20 - Partially in TCAD median of $387,608. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 7.3% over the past year.

R3P5480G - Anderson Mill 12,16 - 20 - Partially in TCAD

typical
834 Properties
$387,608 Median Value
-7.3% YoY Change
2% Have Pool
97% Have Garage
This Home
$355,147
Median
$387,608

This home is -8.4% below the subdivision median.

Tax Analysis

The estimated annual property tax is $7,372 across all districts. With a homestead exemption claimed, that drops to $5,683 — saving $1,689 per year. That's $474 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%$3,172
AustinCity0.5240%$1,861
Williamson CountyCounty0.3694%$1,312
Anderson Mill Limited Districtspecial0.1243%$442
Austin Community Collegespecial0.1034%$367
Williamson County FM/RdCounty0.0443%$157
Upper Brushy Creek WCIDWater0.0170%$60
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.0756%$7,372

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $363,860 would pay approximately $2,271 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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