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

1600 BLACKJACK DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed2 bath856 sqftBuilt 1995

Property at a Glance

This home is estimated between $347,906 and $470,073, with a best estimate of $393,428. That places the property below 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

$347,906 $470,073
Best Estimate
$393,428
WCAD Value
$417,908
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 $347,906 and $470,073. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

1601 BLACKJACK DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,038 sqft Built 1992
Raw Value $469,524
Adjusted Value $424,243

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

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 $384,201

Adjusted -$29,825 for 94 sqft less living space and +$16,620 for being newer. Net adjustment: -$13,205.

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 $347,906

Adjusted -$120,569 for 380 sqft less living space and +$12,465 for being newer. Net adjustment: -$108,104.

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 $470,073

Adjusted -$20,306 for 64 sqft less living space and +$12,465 for being newer. Net adjustment: -$7,841.

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 $393,428

Adjusted -$94,234 for 297 sqft less living space and -$4,155 for being older. Net adjustment: -$98,389.

The Neighborhood

This home is in line with the R126592G - WOODS/OAK HOLLOW ALL SECTIONS median of $420,536. 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
$417,908
Median
$420,536

This home is -0.6% below the subdivision median.

Tax Analysis

The estimated annual property tax is $7,519 across all districts. With a homestead exemption claimed, that drops to $6,192 — saving $1,327 per year. That's $516 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%$3,732
Round RockCity0.3720%$1,555
Williamson CountyCounty0.3694%$1,544
Austin Community Collegespecial0.1034%$432
Williamson County FM/RdCounty0.0443%$185
Upper Brushy Creek WCIDWater0.0170%$71
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$7,519

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $393,428 would pay approximately $2,456 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