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

1601 BLACKJACK DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed2 bath1,038 sqftBuilt 1992

Property at a Glance

This home is estimated between $393,187 and $515,354, with a best estimate of $438,709. That places the property above the R126592G - WOODS/OAK HOLLOW ALL SECTIONS median of $420,536, in a neighborhood that declined 8.5% over the past year.

Estimated Value Range

$393,187 $515,354
Best Estimate
$438,709
WCAD Value
$469,524
High Confidence

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

Based on 5 comparable properties in R126592G - WOODS/OAK HOLLOW ALL SECTIONS, this home's estimated market value is between $393,187 and $515,354. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

1709 BLACKJACK DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 950 sqft Built 1991
Raw Value $397,406
Adjusted Value $429,482

Adjusted +$27,921 for 88 sqft more living space and +$4,155 for being newer. Net adjustment: +$32,076.

1600 BLACKJACK DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 856 sqft Built 1995
Raw Value $417,908
Adjusted Value $463,189

Adjusted +$57,746 for 182 sqft more living space and -$12,465 for being older. Net adjustment: +$45,281.

1903 BLACKJACK CV, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,236 sqft Built 1992
Raw Value $456,010
Adjusted Value $393,187

Adjusted -$62,823 for 198 sqft less living space. Net adjustment: -$62,823.

1805 BLACKJACK DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 920 sqft Built 1992
Raw Value $477,914
Adjusted Value $515,354

Adjusted +$37,440 for 118 sqft more living space. Net adjustment: +$37,440.

1609 BLACKJACK DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,153 sqft Built 1996
Raw Value $491,817
Adjusted Value $438,709

Adjusted -$36,488 for 115 sqft less living space and -$16,620 for being older. Net adjustment: -$53,108.

The Neighborhood

This home is valued 11.6% above the R126592G - WOODS/OAK HOLLOW ALL SECTIONS median of $420,536. With 451 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 8.5% over the past year.

R126592G - WOODS/OAK HOLLOW ALL SECTIONS

typical
451 Properties
$420,536 Median Value
-8.5% YoY Change
2% Have Pool
99% Have Garage
This Home
$469,524
Median
$420,536

This home is +11.6% above the subdivision median.

Tax Analysis

The estimated annual property tax is $8,448 across all districts. With a homestead exemption claimed, that drops to $7,111 — saving $1,337 per year. That's $593 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
Round Rock ISDSchool0.8931%$4,193
Round RockCity0.3720%$1,747
Williamson CountyCounty0.3694%$1,735
Austin Community Collegespecial0.1034%$485
Williamson County FM/RdCounty0.0443%$208
Upper Brushy Creek WCIDWater0.0170%$80
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$8,448

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $438,709 would pay approximately $2,738 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