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4004 CHERT DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath2,821 sqftBuilt 1978

Property at a Glance

This home is estimated between $413,888 and $748,303, with a best estimate of $669,175. That places the property above 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

$413,888 $748,303
Best Estimate
$669,175
WCAD Value
$777,502
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 $413,888 and $748,303 should be treated as a rough guide.

Comparable Properties (5)

3 bed 2 bath 2,044 sqft Built 1981
Raw Value $455,252
Adjusted Value $669,175

Adjusted +$222,579 for 777 sqft more living space and -$8,656 for being older. Net adjustment: +$213,923.

3 bed 2 bath 1,971 sqft Built 1975
Raw Value $496,156
Adjusted Value $748,303

Adjusted +$243,491 for 850 sqft more living space and +$8,656 for being newer. Net adjustment: +$252,147.

3 bed 2 bath 3,097 sqft Built 2000
Raw Value $556,425
Adjusted Value $413,888

Adjusted -$79,063 for 276 sqft less living space and -$63,474 for being older. Net adjustment: -$142,537.

3 bed 2 bath 1,877 sqft Built 1984
Raw Value $405,447
Adjusted Value $658,554

Adjusted +$270,418 for 944 sqft more living space and -$17,311 for being older. Net adjustment: +$253,107.

4 bed 2 bath 1,934 sqft Built 1978
Raw Value $484,482
Adjusted Value $738,572

Adjusted +$254,090 for 887 sqft more living space. Net adjustment: +$254,090.

The Neighborhood

This home is valued 17.2% 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
$777,502
Median
$663,354

This home is +17.2% above the subdivision median.

Tax Analysis

The estimated annual property tax is $14,882 across all districts. With a homestead exemption claimed, that drops to $13,488 — saving $1,394 per year. That's $1,124 per month a buyer should budget. The assessed value increased +8.1% vs the subdivision average of +3.6%. This above-average increase gives a protest opportunity score of 43 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$6,944
Brushy Creek MUDMUD0.3868%$3,008
Williamson CountyCounty0.3694%$2,872
Austin Community Collegespecial0.1034%$804
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$778
Williamson County FM/RdCounty0.0443%$345
Upper Brushy Creek WCIDWater0.0170%$132
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9141%$14,882
43 / 100

Moderate opportunity to protest.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $669,175 would pay approximately $4,177 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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