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4000 E OLD SETTLERS BLVD, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath2,520 sqftBuilt 1985

Property at a Glance

This home is estimated between $729,814 and $1,589,084, with a best estimate of $828,094. That places the property above 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

$729,814 $1,589,084
Best Estimate
$828,094
WCAD Value
$730,537
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 $729,814 and $1,589,084. 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 $828,094

Adjusted +$185,793 for 565 sqft more living space and +$34,557 for being newer. Net adjustment: +$220,350.

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 $734,688

Adjusted +$228,870 for 696 sqft more living space and +$34,557 for being newer and +$100,053 for having a garage. Net adjustment: +$363,480.

4100 E OLD SETTLERS BLVD, ROUND ROCK, TX 78665
0.00 mi 96% similar Same subdivision
3 bed 2 bath 1,567 sqft Built 1976
Raw Value $510,818
Adjusted Value $858,757

Adjusted +$313,382 for 953 sqft more living space and +$34,557 for being newer. Net adjustment: +$347,939.

3 bed 2 bath 2,484 sqft Built 1983
Raw Value $610,244
Adjusted Value $729,814

Adjusted +$11,838 for 36 sqft more living space and +$7,679 for being newer and +$100,053 for having a garage. Net adjustment: +$119,570.

3200 E OLD SETTLERS BLVD, ROUND ROCK, TX 78665
0.00 mi 85% similar Same subdivision
3 bed 2 bath 1,528 sqft Built 1987
Raw Value $1,270,557
Adjusted Value $1,589,084

Adjusted +$326,206 for 992 sqft more living space and -$7,679 for being older. Net adjustment: +$318,527.

The Neighborhood

This home is valued 22.9% above the R002D78G - East Round Rock Williamson Co Abstracts lt 20 Acs median of $594,322. With 82 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 11.1% over the past year.

R002D78G - East Round Rock Williamson Co Abstracts lt 20 Acs

above average
82 Properties
$594,322 Median Value
-11.1% YoY Change
1% Have Pool
43% Have Garage
This Home
$730,537
Median
$594,322

This home is +22.9% above the subdivision median.

Tax Analysis

The estimated annual property tax is $13,144 across all districts. With a homestead exemption claimed, that drops to $11,759 — saving $1,385 per year. That's $980 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%$6,524
Round RockCity0.3720%$2,718
Williamson CountyCounty0.3694%$2,699
Austin Community Collegespecial0.1034%$755
Williamson County FM/RdCounty0.0443%$324
Upper Brushy Creek WCIDWater0.0170%$124
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$13,144

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $828,094 would pay approximately $5,169 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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