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900 LASSO DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath1,178 sqftBuilt 1984

Property at a Glance

This home is estimated between $316,831 and $487,260, with a best estimate of $405,110. That places the property above the R332479H - CHISHOLM VALLEY & NORTHRIDGE ACRES & WILLOW RUN median of $281,358, in a neighborhood that declined 9.6% over the past year.

Estimated Value Range

$316,831 $487,260
Best Estimate
$405,110
WCAD Value
$263,270
Low Confidence

Based on 5 comparable properties(0 in the same subdivision)

There are 5 comparable properties within range, but none are in R332479H - CHISHOLM VALLEY & NORTHRIDGE ACRES & WILLOW RUN. The estimated range of $316,831 and $487,260 should be treated as a rough guide.

Comparable Properties (5)

3 bed 2 bath 1,358 sqft Built 1979
Raw Value $354,874
Adjusted Value $323,841

Adjusted -$38,828 for 180 sqft less living space and +$7,795 for being newer. Net adjustment: -$31,033.

3 bed 2 bath 1,220 sqft Built 1998
Raw Value $435,996
Adjusted Value $405,110

Adjusted -$9,060 for 42 sqft less living space and -$21,826 for being older. Net adjustment: -$30,886.

4 bed 2 bath 1,212 sqft Built 1993
Raw Value $508,625
Adjusted Value $487,260

Adjusted -$7,334 for 34 sqft less living space and -$14,031 for being older. Net adjustment: -$21,365.

4 bed 2 bath 1,057 sqft Built 1976
Raw Value $447,139
Adjusted Value $485,712

Adjusted +$26,101 for 121 sqft more living space and +$12,472 for being newer. Net adjustment: +$38,573.

2 bed 2 bath 1,368 sqft Built 1979
Raw Value $350,021
Adjusted Value $316,831

Adjusted -$40,985 for 190 sqft less living space and +$7,795 for being newer. Net adjustment: -$33,190.

The Neighborhood

This home is valued 6.4% below the R332479H - CHISHOLM VALLEY & NORTHRIDGE ACRES & WILLOW RUN median of $281,358. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 9.6% over the past year.

R332479H - CHISHOLM VALLEY & NORTHRIDGE ACRES & WILLOW RUN

typical
1,006 Properties
$281,358 Median Value
-9.6% YoY Change
2% Have Pool
84% Have Garage
This Home
$263,270
Median
$281,358

This home is -6.4% below the subdivision median.

Tax Analysis

The estimated annual property tax is $4,737 across all districts. With a homestead exemption claimed, that drops to $3,438 — saving $1,299 per year. That's $287 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%$2,351
Round RockCity0.3720%$979
Williamson CountyCounty0.3694%$973
Austin Community Collegespecial0.1034%$272
Williamson County FM/RdCounty0.0443%$117
Upper Brushy Creek WCIDWater0.0170%$45
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$4,737

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $405,110 would pay approximately $2,529 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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