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

340 BLACK OPAL DR, JARRELL, TX 76537

JARRELL, 76537 — williamson County

3 bed2 bath786 sqftBuilt 2021

Property at a Glance

This home is estimated between $227,759 and $301,263, with a best estimate of $273,932. 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

$227,759 $301,263
Best Estimate
$273,932
WCAD Value
$280,589
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 $227,759 and $301,263. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

332 BLACK OPAL DR, JARRELL, TX 76537
0.02 mi 100% similar Same subdivision
3 bed 2 bath 747 sqft Built 2021
Raw Value $291,230
Adjusted Value $301,263

Adjusted +$10,033 for 39 sqft more living space. Net adjustment: +$10,033.

400 BLACK OPAL DR, JARRELL, TX 76537
0.02 mi 100% similar Same subdivision
3 bed 2 bath 958 sqft Built 2021
Raw Value $318,180
Adjusted Value $273,932

Adjusted -$44,248 for 172 sqft less living space. Net adjustment: -$44,248.

229 BLUE AGATE CT, JARRELL, TX 76537
0.03 mi 100% similar Same subdivision
3 bed 2 bath 751 sqft Built 2021
Raw Value $290,006
Adjusted Value $299,010

Adjusted +$9,004 for 35 sqft more living space. Net adjustment: +$9,004.

225 BLUE AGATE CT, JARRELL, TX 76537
0.03 mi 100% similar Same subdivision
4 bed 2 bath 965 sqft Built 2021
Raw Value $304,702
Adjusted Value $258,653

Adjusted -$46,049 for 179 sqft less living space. Net adjustment: -$46,049.

3 bed 2 bath 824 sqft Built 2025
Raw Value $278,064
Adjusted Value $227,759

Adjusted -$9,776 for 38 sqft less living space and -$40,529 for being older. Net adjustment: -$50,305.

The Neighborhood

This home is valued 4.2% below the J308421C - BALCONES FLATS median of $292,849. That positions it competitively for buyers comparing within the neighborhood. 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
$280,589
Median
$292,849

This home is -4.2% below the subdivision median.

Tax Analysis

The estimated annual property tax is $5,821 across all districts. With a homestead exemption claimed, that drops to $4,136 — saving $1,685 per year. That's $345 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%$3,274
JarrellCity0.3940%$1,106
Williamson CountyCounty0.3694%$1,037
Williamson County ESD #5 - JarrellESD0.1000%$281
Williamson County FM/RdCounty0.0443%$124
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.0747%$5,821

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $273,932 would pay approximately $1,710 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