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

400 BLACK OPAL DR, JARRELL, TX 76537

JARRELL, 76537 — williamson County

3 bed2 bath958 sqftBuilt 2021

Property at a Glance

This home is estimated between $116,383 and $324,837, with a best estimate of $224,749. That places the property below the J308421C - BALCONES FLATS median of $292,849, in a neighborhood that declined 9.9% over the past year.

Estimated Value Range

$116,383 $324,837
Best Estimate
$224,749
WCAD Value
$318,180
High Confidence

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

Based on 5 comparable properties in J308421C - BALCONES FLATS, this home's estimated market value is between $116,383 and $324,837. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

404 BLACK OPAL DR, JARRELL, TX 76537
0.01 mi 100% similar Same subdivision
4 bed 2 bath 1,385 sqft Built 2022
Raw Value $357,647
Adjusted Value $237,667

Adjusted -$109,848 for 427 sqft less living space and -$10,132 for being older. Net adjustment: -$119,980.

408 BLACK OPAL DR, JARRELL, TX 76537
0.02 mi 100% similar Same subdivision
3 bed 2 bath 1,276 sqft Built 2022
Raw Value $316,688
Adjusted Value $224,749

Adjusted -$81,807 for 318 sqft less living space and -$10,132 for being older. Net adjustment: -$91,939.

248 BLUE AGATE CT, JARRELL, TX 76537
0.02 mi 100% similar Same subdivision
3 bed 2 bath 1,563 sqft Built 2021
Raw Value $272,023
Adjusted Value $116,383

Adjusted -$155,640 for 605 sqft less living space. Net adjustment: -$155,640.

340 BLACK OPAL DR, JARRELL, TX 76537
0.02 mi 100% similar Same subdivision
3 bed 2 bath 786 sqft Built 2021
Raw Value $280,589
Adjusted Value $324,837

Adjusted +$44,248 for 172 sqft more living space. Net adjustment: +$44,248.

244 BLUE AGATE CT, JARRELL, TX 76537
0.03 mi 100% similar Same subdivision
3 bed 2 bath 1,522 sqft Built 2021
Raw Value $272,658
Adjusted Value $127,566

Adjusted -$145,092 for 564 sqft less living space. Net adjustment: -$145,092.

The Neighborhood

This home is valued 8.6% above the J308421C - BALCONES FLATS median of $292,849. With 91 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 9.9% over the past year.

J308421C - BALCONES FLATS

typical
91 Properties
$292,849 Median Value
-9.9% YoY Change
0% Have Pool
100% Have Garage
This Home
$318,180
Median
$292,849

This home is +8.6% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,601 across all districts. With a homestead exemption claimed, that drops to $4,909 — saving $1,692 per year. That's $409 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
Jarrell ISDSchool1.1669%$3,713
JarrellCity0.3940%$1,254
Williamson CountyCounty0.3694%$1,176
Williamson County ESD #5 - JarrellESD0.1000%$318
Williamson County FM/RdCounty0.0443%$141
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.0747%$6,601

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $224,749 would pay approximately $1,403 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