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300 SANTOLINA LN, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

4 bed2 bath1,682 sqftBuilt 2004

Property at a Glance

This home is estimated between $453,356 and $868,869, with a best estimate of $722,985. That places the property above the R651598E - MORNINGSIDE MEADOWS SEC 1&7, K & B median of $400,408, in a neighborhood that declined 3.0% over the past year.

Estimated Value Range

$453,356 $868,869
Best Estimate
$722,985
WCAD Value
$559,294
Low Confidence

Based on 5 comparable properties(0 in the same subdivision)

There are 5 comparable properties within range, but none are in R651598E - MORNINGSIDE MEADOWS SEC 1&7, K & B. The estimated range of $453,356 and $868,869 should be treated as a rough guide.

Comparable Properties (5)

4 bed 2 bath 1,554 sqft Built 2008
Raw Value $457,107
Adjusted Value $453,356

Adjusted +$23,723 for 128 sqft more living space and -$27,474 for being older. Net adjustment: -$3,751.

4 bed 2 bath 1,522 sqft Built 1992
Raw Value $743,110
Adjusted Value $855,184

Adjusted +$29,653 for 160 sqft more living space and +$82,421 for being newer. Net adjustment: +$112,074.

4 bed 3 bath 1,739 sqft Built 1993
Raw Value $657,997
Adjusted Value $722,985

Adjusted -$10,564 for 57 sqft less living space and +$75,552 for being newer. Net adjustment: +$64,988.

4 bed 3 bath 1,790 sqft Built 1994
Raw Value $820,201
Adjusted Value $868,869

Adjusted -$20,016 for 108 sqft less living space and +$68,684 for being newer. Net adjustment: +$48,668.

4 bed 2 bath 2,182 sqft Built 1991
Raw Value $712,613
Adjusted Value $709,236

Adjusted -$92,666 for 500 sqft less living space and +$89,289 for being newer. Net adjustment: -$3,377.

The Neighborhood

This home is valued 39.7% above the R651598E - MORNINGSIDE MEADOWS SEC 1&7, K & B median of $400,408. With 270 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 3.0% over the past year.

R651598E - MORNINGSIDE MEADOWS SEC 1&7, K & B

above average
270 Properties
$400,408 Median Value
-3.0% YoY Change
3% Have Pool
99% Have Garage
This Home
$559,294
Median
$400,408

This home is +39.7% above the subdivision median.

Tax Analysis

The estimated annual property tax is $8,338 across all districts. With a homestead exemption claimed, that drops to $6,987 — saving $1,351 per year. That's $582 per month a buyer should budget. The assessed value increased +12.7% vs the subdivision average of -3.0%. This above-average increase gives a protest opportunity score of 80 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$4,876
Williamson CountyCounty0.3694%$2,017
Austin Community Collegespecial0.1034%$565
Williamson County ESD #9 - Round RockESD0.0999%$545
Williamson County FM/RdCounty0.0443%$242
Upper Brushy Creek WCIDWater0.0170%$93
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.5272%$8,338
80 / 100

There may be a strong case to protest this appraisal.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $722,985 would pay approximately $4,513 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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