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4002 CHERT DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed2 bath1,769 sqftBuilt 1980

Property at a Glance

This home is estimated between $362,968 and $597,338, with a best estimate of $442,986. That places the property below the R104681D - Brushy Creek North Sec 1 & 2 median of $663,354, in a neighborhood that appreciated 3.6% over the past year.

Estimated Value Range

$362,968 $597,338
Best Estimate
$442,986
WCAD Value
$773,358
Low Confidence

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

There are 5 comparable properties within range, but none are in R104681D - Brushy Creek North Sec 1 & 2. The estimated range of $362,968 and $597,338 should be treated as a rough guide.

Comparable Properties (5)

4 bed 2 bath 1,657 sqft Built 1978
Raw Value $559,484
Adjusted Value $597,338

Adjusted +$32,084 for 112 sqft more living space and +$5,770 for being newer. Net adjustment: +$37,854.

4 bed 2 bath 1,934 sqft Built 1978
Raw Value $484,482
Adjusted Value $442,986

Adjusted -$47,266 for 165 sqft less living space and +$5,770 for being newer. Net adjustment: -$41,496.

3 bed 2 bath 1,877 sqft Built 1984
Raw Value $405,447
Adjusted Value $362,968

Adjusted -$30,938 for 108 sqft less living space and -$11,541 for being older. Net adjustment: -$42,479.

3 bed 2 bath 1,626 sqft Built 1977
Raw Value $398,588
Adjusted Value $448,208

Adjusted +$40,964 for 143 sqft more living space and +$8,656 for being newer. Net adjustment: +$49,620.

3 bed 2 bath 2,044 sqft Built 1981
Raw Value $455,252
Adjusted Value $373,591

Adjusted -$78,776 for 275 sqft less living space and -$2,885 for being older. Net adjustment: -$81,661.

The Neighborhood

This home is valued 16.6% above the R104681D - Brushy Creek North Sec 1 & 2 median of $663,354. With 292 homes in the subdivision, the property sits in the upper tier. The neighborhood appreciated 3.6% over the past year.

R104681D - Brushy Creek North Sec 1 & 2

above average
292 Properties
$663,354 Median Value
+3.6% YoY Change
3% Have Pool
95% Have Garage
This Home
$773,358
Median
$663,354

This home is +16.6% above the subdivision median.

Tax Analysis

The estimated annual property tax is $14,511 across all districts. With a homestead exemption claimed, that drops to $13,120 — saving $1,391 per year. That's $1,093 per month a buyer should budget. The assessed value increased +12.2% vs the subdivision average of +3.6%. This above-average increase gives a protest opportunity score of 73 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$6,771
Brushy Creek MUDMUD0.3868%$2,933
Williamson CountyCounty0.3694%$2,801
Austin Community Collegespecial0.1034%$784
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$758
Williamson County FM/RdCounty0.0443%$336
Upper Brushy Creek WCIDWater0.0170%$129
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9141%$14,511
73 / 100

There may be a strong case to protest this appraisal.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $442,986 would pay approximately $2,765 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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