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8400 MOUNT SHASTA CV, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed2 bath1,004 sqftBuilt 1992

Property at a Glance

This home is estimated between $300,833 and $509,376, with a best estimate of $368,934. That places the property below the R270588F - Fern Bluff Sec 1,1A,1B,2,2 (AMD) median of $453,749, in a neighborhood that declined 4.0% over the past year.

Estimated Value Range

$300,833 $509,376
Best Estimate
$368,934
WCAD Value
$480,289
High Confidence

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

Based on 5 comparable properties in R270588F - Fern Bluff Sec 1,1A,1B,2,2 (AMD), this home's estimated market value is between $300,833 and $509,376. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

8404 MOUNT SHASTA CV, ROUND ROCK, TX 78681
0.02 mi 100% similar Same subdivision
3 bed 2 bath 1,113 sqft Built 1987
Raw Value $334,733
Adjusted Value $300,833

Adjusted -$43,599 for 109 sqft less living space and +$9,699 for being newer. Net adjustment: -$33,900.

8309 COLUMBIA FALLS DR, ROUND ROCK, TX 78681
0.03 mi 100% similar Same subdivision
4 bed 2 bath 981 sqft Built 1992
Raw Value $500,176
Adjusted Value $509,376

Adjusted +$9,200 for 23 sqft more living space. Net adjustment: +$9,200.

8305 COLUMBIA FALLS DR, ROUND ROCK, TX 78681
0.03 mi 100% similar Same subdivision
4 bed 2 bath 1,026 sqft Built 1992
Raw Value $478,124
Adjusted Value $469,324

Adjusted -$8,800 for 22 sqft less living space. Net adjustment: -$8,800.

8401 MOUNT SHASTA CV, ROUND ROCK, TX 78681
0.03 mi 100% similar Same subdivision
3 bed 2 bath 1,005 sqft Built 1987
Raw Value $359,635
Adjusted Value $368,934

Adjusted -$400 for 1 sqft less living space and +$9,699 for being newer. Net adjustment: +$9,299.

8403 MOUNT SHASTA CV, ROUND ROCK, TX 78681
0.03 mi 100% similar Same subdivision
3 bed 2 bath 1,055 sqft Built 1987
Raw Value $352,361
Adjusted Value $341,660

Adjusted -$20,400 for 51 sqft less living space and +$9,699 for being newer. Net adjustment: -$10,701.

The Neighborhood

This home is valued 5.8% above the R270588F - Fern Bluff Sec 1,1A,1B,2,2 (AMD) median of $453,749. With 421 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 4.0% over the past year.

R270588F - Fern Bluff Sec 1,1A,1B,2,2 (AMD)

typical
421 Properties
$453,749 Median Value
-4.0% YoY Change
1% Have Pool
100% Have Garage
This Home
$480,289
Median
$453,749

This home is +5.8% above the subdivision median.

Tax Analysis

The estimated annual property tax is $8,200 across all districts. With a homestead exemption claimed, that drops to $6,861 — saving $1,339 per year. That's $572 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%$4,289
Williamson CountyCounty0.3694%$1,774
Fern Bluff MUDMUD0.1800%$865
Austin Community Collegespecial0.1034%$497
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$480
Williamson County FM/RdCounty0.0443%$213
Upper Brushy Creek WCIDWater0.0170%$82
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7073%$8,200

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $368,934 would pay approximately $2,303 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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