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1801 BLACKJACK DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed2 bath2,279 sqftBuilt 1991

Property at a Glance

This home is estimated between $414,261 and $704,503, with a best estimate of $691,321. 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

$414,261 $704,503
Best Estimate
$691,321
WCAD Value
$429,244
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 $414,261 and $704,503. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

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 $523,895

Adjusted +$167,210 for 527 sqft more living space. Net adjustment: +$167,210.

1907 BLACKJACK CV, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,632 sqft Built 1992
Raw Value $496,877
Adjusted Value $698,007

Adjusted +$205,285 for 647 sqft more living space and -$4,155 for being older. Net adjustment: +$201,130.

1906 BLACKJACK CV, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,554 sqft Built 1986
Raw Value $440,513
Adjusted Value $691,321

Adjusted +$230,033 for 725 sqft more living space and +$20,775 for being newer. Net adjustment: +$250,808.

4 bed 2 bath 2,352 sqft Built 1999
Raw Value $470,663
Adjusted Value $414,261

Adjusted -$23,162 for 73 sqft less living space and -$33,240 for being older. Net adjustment: -$56,402.

1607 BLACKJACK DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,508 sqft Built 1996
Raw Value $480,650
Adjusted Value $704,503

Adjusted +$244,628 for 771 sqft more living space and -$20,775 for being older. Net adjustment: +$223,853.

The Neighborhood

This home is valued 2.1% 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
$429,244
Median
$420,536

This home is +2.1% above the subdivision median.

Tax Analysis

The estimated annual property tax is $7,723 across all districts. With a homestead exemption claimed, that drops to $6,394 — saving $1,329 per year. That's $533 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%$3,834
Round RockCity0.3720%$1,597
Williamson CountyCounty0.3694%$1,586
Austin Community Collegespecial0.1034%$444
Williamson County FM/RdCounty0.0443%$190
Upper Brushy Creek WCIDWater0.0170%$73
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$7,723

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $691,321 would pay approximately $4,315 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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