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

5001 BLACK ONYX DR, JARRELL, TX 76537

JARRELL, 76537 — williamson County

4 bed2 bath1,385 sqftBuilt 2021

Property at a Glance

This home is estimated between $225,377 and $419,228, with a best estimate of $356,299. That places the property above the J308421C - BALCONES FLATS median of $292,849, in a neighborhood that declined 9.9% over the past year.

Estimated Value Range

$225,377 $419,228
Best Estimate
$356,299
WCAD Value
$401,768
Medium Confidence

Based on 5 comparable properties(4 in the same subdivision)

Based on 5 comparable properties (4 in the same subdivision, 1 nearby), the estimated range is $225,377 and $419,228. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

212 BLACK OPAL DR, JARRELL, TX 76537
0.03 mi 100% similar Same subdivision
3 bed 2 bath 965 sqft Built 2021
Raw Value $302,003
Adjusted Value $410,050

Adjusted +$108,047 for 420 sqft more living space. Net adjustment: +$108,047.

5000 BLACK ONYX LN, JARRELL, TX 76537
0.03 mi 100% similar Same subdivision
3 bed 2 bath 958 sqft Built 2022
Raw Value $319,512
Adjusted Value $419,228

Adjusted +$109,848 for 427 sqft more living space and -$10,132 for being older. Net adjustment: +$99,716.

208 BLACK OPAL DR, JARRELL, TX 76537
0.03 mi 100% similar Same subdivision
5 bed 2 bath 1,385 sqft Built 2021
Raw Value $356,299
Adjusted Value $356,299

This comparable closely matches the subject property's features.

3 bed 2 bath 1,410 sqft Built 2020
Raw Value $251,963
Adjusted Value $255,664

Adjusted -$6,431 for 25 sqft less living space and +$10,132 for being newer. Net adjustment: +$3,701.

216 BLACK OPAL DR, JARRELL, TX 76537
0.03 mi 100% similar Same subdivision
2 bed 2 bath 1,537 sqft Built 2021
Raw Value $264,480
Adjusted Value $225,377

Adjusted -$39,103 for 152 sqft less living space. Net adjustment: -$39,103.

The Neighborhood

This home is valued 37.2% 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

above average
91 Properties
$292,849 Median Value
-9.9% YoY Change
0% Have Pool
100% Have Garage
This Home
$401,768
Median
$292,849

This home is +37.2% above the subdivision median.

Tax Analysis

The estimated annual property tax is $8,335 across all districts. With a homestead exemption claimed, that drops to $6,627 — saving $1,708 per year. That's $552 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%$4,688
JarrellCity0.3940%$1,583
Williamson CountyCounty0.3694%$1,484
Williamson County ESD #5 - JarrellESD0.1000%$402
Williamson County FM/RdCounty0.0443%$178
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.0747%$8,335

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $356,299 would pay approximately $2,224 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