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1100 WEST SIDE LN, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath2,648 sqftBuilt 1975

Property at a Glance

This home is estimated between $358,471 and $536,450, with a best estimate of $447,980. That places the property above the R701575F - OLD TOWN ROUND ROCK median of $319,256, in a neighborhood that appreciated 4.3% over the past year.

Estimated Value Range

$358,471 $536,450
Best Estimate
$447,980
WCAD Value
$866,132
Low Confidence

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

There are 5 comparable properties within range, but none are in R701575F - OLD TOWN ROUND ROCK. The estimated range of $358,471 and $536,450 should be treated as a rough guide.

Comparable Properties (5)

3 bed 2 bath 2,823 sqft Built 1976
Raw Value $530,916
Adjusted Value $358,471

Adjusted -$44,933 for 175 sqft less living space and -$3,092 for being older and -$124,420 for no garage. Net adjustment: -$172,445.

3 bed 2 bath 2,290 sqft Built 1979
Raw Value $531,237
Adjusted Value $486,368

Adjusted +$91,920 for 358 sqft more living space and -$12,369 for being older and -$124,420 for no garage. Net adjustment: -$44,869.

4 bed 2 bath 2,368 sqft Built 1976
Raw Value $461,500
Adjusted Value $405,881

Adjusted +$71,893 for 280 sqft more living space and -$3,092 for being older and -$124,420 for no garage. Net adjustment: -$55,619.

3 bed 2 bath 2,211 sqft Built 1985
Raw Value $491,118
Adjusted Value $447,980

Adjusted +$112,205 for 437 sqft more living space and -$30,923 for being older and -$124,420 for no garage. Net adjustment: -$43,138.

3 bed 2 bath 1,744 sqft Built 1976
Raw Value $431,850
Adjusted Value $536,450

Adjusted +$232,112 for 904 sqft more living space and -$3,092 for being older and -$124,420 for no garage. Net adjustment: +$104,600.

The Neighborhood

This home is valued 171.3% above the R701575F - OLD TOWN ROUND ROCK median of $319,256. With 360 homes in the subdivision, the property sits in the upper tier. The neighborhood appreciated 4.3% over the past year.

R701575F - OLD TOWN ROUND ROCK

outlier high
360 Properties
$319,256 Median Value
+4.3% YoY Change
5% Have Pool
24% Have Garage
This Home
$866,132
Median
$319,256

This home is +171.3% above the subdivision median.

Tax Analysis

The estimated annual property tax is $15,584 across all districts. With a homestead exemption claimed, that drops to $14,174 — saving $1,410 per year. That's $1,181 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%$7,735
Round RockCity0.3720%$3,222
Williamson CountyCounty0.3694%$3,200
Austin Community Collegespecial0.1034%$896
Williamson County FM/RdCounty0.0443%$384
Upper Brushy Creek WCIDWater0.0170%$147
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$15,584

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $447,980 would pay approximately $2,796 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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