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3109 MONUMENT DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath1,348 sqftBuilt 1984

Property at a Glance

This home is estimated between $291,047 and $357,603, with a best estimate of $321,881. That places the property above the R210480H - Brushy Creek median of $296,542, in a neighborhood that declined 14.6% over the past year.

Estimated Value Range

$291,047 $357,603
Best Estimate
$321,881
WCAD Value
$273,117
Medium Confidence

Based on 5 comparable properties(3 in the same subdivision)

Based on 5 comparable properties (3 in the same subdivision, 2 nearby), the estimated range is $291,047 and $357,603. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

3609 CORNERSTONE, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,269 sqft Built 1982
Raw Value $290,537
Adjusted Value $311,369

Adjusted +$17,619 for 79 sqft more living space and +$3,213 for being newer. Net adjustment: +$20,832.

3115 FREEMONT ST, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,303 sqft Built 1984
Raw Value $347,567
Adjusted Value $357,603

Adjusted +$10,036 for 45 sqft more living space. Net adjustment: +$10,036.

4001 HILLSIDE DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,133 sqft Built 1979
Raw Value $293,501
Adjusted Value $349,483

Adjusted +$47,949 for 215 sqft more living space and +$8,033 for being newer. Net adjustment: +$55,982.

3 bed 2 bath 1,254 sqft Built 1984
Raw Value $270,083
Adjusted Value $291,047

Adjusted +$20,964 for 94 sqft more living space. Net adjustment: +$20,964.

3 bed 2 bath 1,550 sqft Built 1984
Raw Value $366,931
Adjusted Value $321,881

Adjusted -$45,050 for 202 sqft less living space. Net adjustment: -$45,050.

The Neighborhood

This home is valued 7.9% below the R210480H - Brushy Creek median of $296,542. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 14.6% over the past year.

R210480H - Brushy Creek

typical
871 Properties
$296,542 Median Value
-14.6% YoY Change
2% Have Pool
94% Have Garage
This Home
$273,117
Median
$296,542

This home is -7.9% below the subdivision median.

Tax Analysis

The estimated annual property tax is $5,228 across all districts. With a homestead exemption claimed, that drops to $3,927 — saving $1,301 per year. That's $327 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%$2,439
Brushy Creek MUDMUD0.3868%$1,057
Williamson CountyCounty0.3694%$1,009
Austin Community Collegespecial0.1034%$282
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$273
Williamson County FM/RdCounty0.0443%$121
Upper Brushy Creek WCIDWater0.0170%$46
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9141%$5,228

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $321,881 would pay approximately $2,009 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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