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621 RANCHO SIENNA LOOP, GEORGETOWN, TX 78628

GEORGETOWN, 78628 — williamson County

4 bed3 bath2,752 sqftBuilt 2018

Property at a Glance

This home is estimated between $548,911 and $700,890, with a best estimate of $579,645. 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

$548,911 $700,890
Best Estimate
$579,645
WCAD Value
$540,350
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 $548,911 and $700,890. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

617 RANCHO SIENNA LOOP, GEORGETOWN, TX 78628
0.01 mi 100% similar Same subdivision
3 bed 2 bath 2,382 sqft Built 2017
Raw Value $470,678
Adjusted Value $556,407

Adjusted +$80,816 for 370 sqft more living space and +$4,913 for being newer. Net adjustment: +$85,729.

625 RANCHO SIENNA LOOP, GEORGETOWN, TX 78628
0.01 mi 100% similar Same subdivision
3 bed 2 bath 2,407 sqft Built 2018
Raw Value $473,556
Adjusted Value $548,911

Adjusted +$75,355 for 345 sqft more living space. Net adjustment: +$75,355.

629 RANCHO SIENNA LOOP, GEORGETOWN, TX 78628
0.02 mi 100% similar Same subdivision
4 bed 3 bath 2,021 sqft Built 2018
Raw Value $541,225
Adjusted Value $700,890

Adjusted +$159,665 for 731 sqft more living space. Net adjustment: +$159,665.

424 PIENZA DR, GEORGETOWN, TX 78628
0.03 mi 100% similar Same subdivision
4 bed 3 bath 2,608 sqft Built 2017
Raw Value $543,279
Adjusted Value $579,645

Adjusted +$31,453 for 144 sqft more living space and +$4,913 for being newer. Net adjustment: +$36,366.

428 PIENZA DR, GEORGETOWN, TX 78628
0.03 mi 100% similar Same subdivision
4 bed 3 bath 2,421 sqft Built 2017
Raw Value $527,942
Adjusted Value $605,152

Adjusted +$72,297 for 331 sqft more living space and +$4,913 for being newer. Net adjustment: +$77,210.

The Neighborhood

This home is valued 5.6% 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
$540,350
Median
$511,660

This home is +5.6% above the subdivision median.

Tax Analysis

The estimated annual property tax is $13,275 across all districts. With a homestead exemption claimed, that drops to $11,441 — saving $1,834 per year. That's $953 per month a buyer should budget. The assessed value increased +10.7% vs the subdivision average of -4.3%. 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
Liberty Hill ISDSchool1.2389%$6,694
Williamson County MUD #12MUD0.7296%$3,942
Williamson CountyCounty0.3694%$1,996
Williamson County ESD #4 - Liberty HillESD0.0745%$403
Williamson County FM/RdCounty0.0443%$240
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.4568%$13,275
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 $579,645 would pay approximately $3,618 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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