Beta Williamson County, TX only — data and coverage are limited during early access.

516 SAN MARCO TRL, GEORGETOWN, TX 78628

GEORGETOWN, 78628 — williamson County

4 bed3 bath3,266 sqftBuilt 2016

Property at a Glance

This home is estimated between $560,490 and $837,351, with a best estimate of $658,486. That places the property above the I450610C - RANCHO SIENNA median of $511,660, in a neighborhood that declined 4.3% over the past year.

Estimated Value Range

$560,490 $837,351
Best Estimate
$658,486
WCAD Value
$560,034
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 $560,490 and $837,351. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

600 SAN MARCO TRL, GEORGETOWN, TX 78628
0.02 mi 100% similar Same subdivision
4 bed 3 bath 2,801 sqft Built 2016
Raw Value $556,921
Adjusted Value $658,486

Adjusted +$101,565 for 465 sqft more living space. Net adjustment: +$101,565.

512 SAN MARCO TRL, GEORGETOWN, TX 78628
0.02 mi 100% similar Same subdivision
4 bed 3 bath 3,158 sqft Built 2015
Raw Value $549,014
Adjusted Value $577,516

Adjusted +$23,589 for 108 sqft more living space and +$4,913 for being newer. Net adjustment: +$28,502.

508 SAN MARCO TRL, GEORGETOWN, TX 78628
0.03 mi 100% similar Same subdivision
3 bed 2 bath 2,850 sqft Built 2017
Raw Value $474,540
Adjusted Value $560,490

Adjusted +$90,863 for 416 sqft more living space and -$4,913 for being older. Net adjustment: +$85,950.

116 RUFFINO LN, GEORGETOWN, TX 78628
0.03 mi 100% similar Same subdivision
4 bed 3 bath 2,351 sqft Built 2016
Raw Value $637,496
Adjusted Value $837,351

Adjusted +$199,855 for 915 sqft more living space. Net adjustment: +$199,855.

519 SAN MARCO TRL, GEORGETOWN, TX 78628
0.04 mi 100% similar Same subdivision
4 bed 3 bath 2,662 sqft Built 2017
Raw Value $537,235
Adjusted Value $664,248

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

The Neighborhood

This home is valued 9.5% 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
$560,034
Median
$511,660

This home is +9.5% above the subdivision median.

Tax Analysis

The estimated annual property tax is $13,759 across all districts. With a homestead exemption claimed, that drops to $11,921 — saving $1,838 per year. That's $993 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
Liberty Hill ISDSchool1.2389%$6,938
Williamson County MUD #12MUD0.7296%$4,086
Williamson CountyCounty0.3694%$2,069
Williamson County ESD #4 - Liberty HillESD0.0745%$417
Williamson County FM/RdCounty0.0443%$248
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.4568%$13,759

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $658,486 would pay approximately $4,110 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.

View full property details