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519 SAN MARCO TRL, GEORGETOWN, TX 78628

GEORGETOWN, 78628 — williamson County

4 bed3 bath2,662 sqftBuilt 2017

Property at a Glance

This home is estimated between $431,673 and $699,361, with a best estimate of $450,505. That places the property below the I450610C - RANCHO SIENNA median of $511,660, in a neighborhood that declined 4.3% over the past year.

Estimated Value Range

$431,673 $699,361
Best Estimate
$450,505
WCAD Value
$537,235
High Confidence

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

Based on 5 comparable properties in I450610C - RANCHO SIENNA, this home's estimated market value is between $431,673 and $699,361. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

523 SAN MARCO TRL, GEORGETOWN, TX 78628
0.01 mi 100% similar Same subdivision
4 bed 3 bath 2,007 sqft Built 2017
Raw Value $556,296
Adjusted Value $699,361

Adjusted +$143,065 for 655 sqft more living space. Net adjustment: +$143,065.

515 SAN MARCO TRL, GEORGETOWN, TX 78628
0.02 mi 100% similar Same subdivision
3 bed 2 bath 2,290 sqft Built 2017
Raw Value $531,181
Adjusted Value $612,433

Adjusted +$81,252 for 372 sqft more living space. Net adjustment: +$81,252.

511 SAN MARCO TRL, GEORGETOWN, TX 78628
0.03 mi 100% similar Same subdivision
4 bed 3 bath 3,012 sqft Built 2017
Raw Value $508,120
Adjusted Value $431,673

Adjusted -$76,447 for 350 sqft less living space. Net adjustment: -$76,447.

516 SAN MARCO TRL, GEORGETOWN, TX 78628
0.04 mi 100% similar Same subdivision
4 bed 3 bath 3,266 sqft Built 2016
Raw Value $560,034
Adjusted Value $433,021

Adjusted -$131,926 for 604 sqft less living space and +$4,913 for being newer. Net adjustment: -$127,013.

512 SAN MARCO TRL, GEORGETOWN, TX 78628
0.04 mi 100% similar Same subdivision
4 bed 3 bath 3,158 sqft Built 2015
Raw Value $549,014
Adjusted Value $450,505

Adjusted -$108,336 for 496 sqft less living space and +$9,827 for being newer. Net adjustment: -$98,509.

The Neighborhood

This home is valued 5.0% above the I450610C - RANCHO SIENNA median of $511,660. With 1,070 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 4.3% over the past year.

I450610C - RANCHO SIENNA

typical
1,070 Properties
$511,660 Median Value
-4.3% YoY Change
0% Have Pool
100% Have Garage
This Home
$537,235
Median
$511,660

This home is +5.0% above the subdivision median.

Tax Analysis

The estimated annual property tax is $13,199 across all districts. With a homestead exemption claimed, that drops to $11,365 — saving $1,834 per year. That's $947 per month a buyer should budget. The assessed value increased +7.2% vs the subdivision average of -4.3%. This above-average increase gives a protest opportunity score of 65 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Liberty Hill ISDSchool1.2389%$6,656
Williamson County MUD #12MUD0.7296%$3,920
Williamson CountyCounty0.3694%$1,985
Williamson County ESD #4 - Liberty HillESD0.0745%$400
Williamson County FM/RdCounty0.0443%$238
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.4568%$13,199
65 / 100

Moderate opportunity to protest.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $450,505 would pay approximately $2,812 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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