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4100 E OLD SETTLERS BLVD, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath1,567 sqftBuilt 1976

Property at a Glance

This home is estimated between $382,598 and $1,241,145, with a best estimate of $480,155. That places the property below the R002D78G - East Round Rock Williamson Co Abstracts lt 20 Acs median of $594,322, in a neighborhood that declined 11.1% over the past year.

Estimated Value Range

$382,598 $1,241,145
Best Estimate
$480,155
WCAD Value
$510,818
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 $382,598 and $1,241,145. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

4006 E OLD SETTLERS BLVD, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,955 sqft Built 1976
Raw Value $607,744
Adjusted Value $480,155

Adjusted -$127,589 for 388 sqft less living space. Net adjustment: -$127,589.

4102 E OLD SETTLERS BLVD, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,824 sqft Built 1976
Raw Value $371,208
Adjusted Value $386,750

Adjusted -$84,511 for 257 sqft less living space and +$100,053 for having a garage. Net adjustment: +$15,542.

4000 E OLD SETTLERS BLVD, ROUND ROCK, TX 78665
0.00 mi 96% similar Same subdivision
3 bed 2 bath 2,520 sqft Built 1985
Raw Value $730,537
Adjusted Value $382,598

Adjusted -$313,382 for 953 sqft less living space and -$34,557 for being older. Net adjustment: -$347,939.

3200 E OLD SETTLERS BLVD, ROUND ROCK, TX 78665
0.00 mi 95% similar Same subdivision
3 bed 2 bath 1,528 sqft Built 1987
Raw Value $1,270,557
Adjusted Value $1,241,145

Adjusted +$12,825 for 39 sqft more living space and -$42,237 for being older. Net adjustment: -$29,412.

3 bed 2 bath 1,688 sqft Built 1979
Raw Value $573,119
Adjusted Value $521,811

Adjusted -$39,789 for 121 sqft less living space and -$11,519 for being older. Net adjustment: -$51,308.

The Neighborhood

This home is valued 14.1% below the R002D78G - East Round Rock Williamson Co Abstracts lt 20 Acs median of $594,322. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 11.1% over the past year.

R002D78G - East Round Rock Williamson Co Abstracts lt 20 Acs

typical
82 Properties
$594,322 Median Value
-11.1% YoY Change
1% Have Pool
43% Have Garage
This Home
$510,818
Median
$594,322

This home is -14.1% below the subdivision median.

Tax Analysis

The estimated annual property tax is $9,191 across all districts. With a homestead exemption claimed, that drops to $7,846 — saving $1,345 per year. That's $654 per month a buyer should budget. The assessed value increased +6.1% vs the subdivision average of -11.1%. This above-average increase gives a protest opportunity score of 65 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$4,562
Round RockCity0.3720%$1,900
Williamson CountyCounty0.3694%$1,887
Austin Community Collegespecial0.1034%$528
Williamson County FM/RdCounty0.0443%$226
Upper Brushy Creek WCIDWater0.0170%$87
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$9,191
65 / 100

Moderate opportunity to protest.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $480,155 would pay approximately $2,997 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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