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1800 IH 35 N, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2,295 sqftBuilt 1922

Property at a Glance

This home is estimated between $422,190 and $1,533,104, with a best estimate of $1,105,914.

Estimated Value Range

$422,190 $1,533,104
Best Estimate
$1,105,914
WCAD Value
$1,082,646
Low Confidence

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

There are 5 comparable properties within range, but none are in R30SG - Service Garage-west Round Rock. The estimated range of $422,190 and $1,533,104 should be treated as a rough guide.

Comparable Properties (5)

3 bed 6,251 sqft Built 1920
Raw Value $2,488,500
Adjusted Value $1,533,104

Adjusted -$955,194 for 3,956 sqft less living space and -$202 for being older. Net adjustment: -$955,396.

3 bed 2 bath 2,580 sqft Built 1952
Raw Value $1,171,695
Adjusted Value $1,105,914

Adjusted -$68,815 for 285 sqft less living space and +$3,034 for being newer. Net adjustment: -$65,781.

3 bed 1,800 sqft Built 1979
Raw Value $1,127,589
Adjusted Value $1,252,874

Adjusted +$119,520 for 495 sqft more living space and +$5,765 for being newer. Net adjustment: +$125,285.

3 bed 1,836 sqft Built 1980
Raw Value $847,218
Adjusted Value $963,912

Adjusted +$110,828 for 459 sqft more living space and +$5,866 for being newer. Net adjustment: +$116,694.

3 bed 2 bath 2,252 sqft Built 1984
Raw Value $465,729
Adjusted Value $422,190

Adjusted +$10,383 for 43 sqft more living space and +$6,271 for being newer and -$60,193 for no garage. Net adjustment: -$43,539.

The Neighborhood

Subdivision comparison data is not available for this property.

Tax Analysis

The estimated annual property tax is $19,480 across all districts. With a homestead exemption claimed, that drops to $18,029 — saving $1,451 per year. That's $1,502 per month a buyer should budget. The assessed value increased +11.4%. This increase gives a protest opportunity score of 85 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$9,669
Round RockCity0.3720%$4,027
Williamson CountyCounty0.3694%$4,000
Austin Community Collegespecial0.1034%$1,119
Williamson County FM/RdCounty0.0443%$480
Upper Brushy Creek WCIDWater0.0170%$184
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$19,480
85 / 100

There may be a strong case to protest this appraisal.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $1,105,914 would pay approximately $6,903 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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