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1603 BLACKJACK DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed2 bath1,260 sqftBuilt 1994

Property at a Glance

This home is estimated between $213,045 and $548,272, with a best estimate of $531,982. 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

$213,045 $548,272
Best Estimate
$531,982
WCAD Value
$519,548
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 $213,045 and $548,272. More comparables in the same subdivision would strengthen this estimate.

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 $548,272

Adjusted +$70,438 for 222 sqft more living space and +$8,310 for being newer. Net adjustment: +$78,748.

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 $508,230

Adjusted +$98,359 for 310 sqft more living space and +$12,465 for being newer. Net adjustment: +$110,824.

1605 BLACKJACK DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,752 sqft Built 1991
Raw Value $356,685
Adjusted Value $213,045

Adjusted -$156,105 for 492 sqft less living space and +$12,465 for being newer. Net adjustment: -$143,640.

4 bed 2 bath 1,356 sqft Built 1999
Raw Value $583,217
Adjusted Value $531,982

Adjusted -$30,460 for 96 sqft less living space and -$20,775 for being older. Net adjustment: -$51,235.

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 $541,937

Adjusted +$128,184 for 404 sqft more living space and -$4,155 for being older. Net adjustment: +$124,029.

The Neighborhood

This home is valued 23.5% 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

above average
451 Properties
$420,536 Median Value
-8.5% YoY Change
2% Have Pool
99% Have Garage
This Home
$519,548
Median
$420,536

This home is +23.5% above the subdivision median.

Tax Analysis

The estimated annual property tax is $9,348 across all districts. With a homestead exemption claimed, that drops to $8,002 — saving $1,346 per year. That's $667 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%$4,640
Round RockCity0.3720%$1,933
Williamson CountyCounty0.3694%$1,919
Austin Community Collegespecial0.1034%$537
Williamson County FM/RdCounty0.0443%$230
Upper Brushy Creek WCIDWater0.0170%$88
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$9,348

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $531,982 would pay approximately $3,321 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.

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