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

300 KOONTZ LOOP, JARRELL, TX 76537

JARRELL, 76537 — williamson County

3 bed2 bath1,546 sqftBuilt 2017

Property at a Glance

This home is estimated between $197,639 and $261,071, with a best estimate of $218,207. That places the property below the J204407G - SONTERRA (MULTIPLE BUILDERS) median of $243,526, in a neighborhood that declined 6.3% over the past year.

Estimated Value Range

$197,639 $261,071
Best Estimate
$218,207
WCAD Value
$255,289
High Confidence

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

Based on 5 comparable properties in J204407G - SONTERRA (MULTIPLE BUILDERS), this home's estimated market value is between $197,639 and $261,071. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

308 DRUSE LN, JARRELL, TX 76537
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,853 sqft Built 2016
Raw Value $246,289
Adjusted Value $197,639

Adjusted -$51,366 for 307 sqft less living space and +$2,716 for being newer. Net adjustment: -$48,650.

309 SERPENTINE LN, JARRELL, TX 76537
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,323 sqft Built 2018
Raw Value $226,476
Adjusted Value $261,071

Adjusted +$37,311 for 223 sqft more living space and -$2,716 for being older. Net adjustment: +$34,595.

300 SERPENTINE LN, JARRELL, TX 76537
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,484 sqft Built 2017
Raw Value $248,691
Adjusted Value $259,065

Adjusted +$10,374 for 62 sqft more living space. Net adjustment: +$10,374.

301 ENGINEERS PASS, JARRELL, TX 76537
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,920 sqft Built 2006
Raw Value $250,907
Adjusted Value $218,207

Adjusted -$62,576 for 374 sqft less living space and +$29,876 for being newer. Net adjustment: -$32,700.

301 KYANITE LN, JARRELL, TX 76537
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,802 sqft Built 2008
Raw Value $232,787
Adjusted Value $214,398

Adjusted -$42,833 for 256 sqft less living space and +$24,444 for being newer. Net adjustment: -$18,389.

The Neighborhood

This home is valued 4.8% above the J204407G - SONTERRA (MULTIPLE BUILDERS) median of $243,526. With 1,787 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 6.3% over the past year.

J204407G - SONTERRA (MULTIPLE BUILDERS)

typical
1,787 Properties
$243,526 Median Value
-6.3% YoY Change
0% Have Pool
100% Have Garage
This Home
$255,289
Median
$243,526

This home is +4.8% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,140 across all districts. With a homestead exemption claimed, that drops to $4,459 — saving $1,681 per year. That's $372 per month a buyer should budget. The assessed value increased +2.3% vs the subdivision average of -6.3%. This above-average increase gives a protest opportunity score of 43 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Jarrell ISDSchool1.1669%$2,979
Sonterra MUDMUD0.7245%$1,850
Williamson CountyCounty0.3694%$943
Williamson County ESD #5 - JarrellESD0.1000%$255
Williamson County FM/RdCounty0.0443%$113
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.4052%$6,140
43 / 100

Moderate opportunity to protest.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $218,207 would pay approximately $1,362 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