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812 IH 35 S, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

1 bed1 bath724 sqftBuilt 1930

Property at a Glance

This home is estimated between $-64,312 and $1,012,865, with a best estimate of $78,112. That places the property below the R701575F - OLD TOWN ROUND ROCK median of $319,256, in a neighborhood that appreciated 4.3% over the past year.

Estimated Value Range

$-64,312 $1,012,865
Best Estimate
$78,112
WCAD Value
$161,664
Low Confidence

Based on 5 comparable properties(2 in the same subdivision)

There are 5 comparable properties within range, but few are in R701575F - OLD TOWN ROUND ROCK. The estimated range of $-64,312 and $1,012,865 should be treated as a rough guide.

Comparable Properties (5)

905 S IH 35, ROUND ROCK, TX 78664
0.00 mi 75% similar Same subdivision
3 bed 1 bath 1,444 sqft Built 1960
Raw Value $213,326
Adjusted Value $-64,312

Adjusted -$184,868 for 720 sqft less living space and -$92,770 for being older. Net adjustment: -$277,638.

703 IH 35 S, ROUND ROCK, TX 78664
0.00 mi 70% similar Same subdivision
2 bed 1 bath 1,204 sqft Built 1955
Raw Value $278,665
Adjusted Value $78,112

Adjusted -$123,245 for 480 sqft less living space and -$77,308 for being older. Net adjustment: -$200,553.

3 bed 900 sqft Built 1986
Raw Value $1,231,226
Adjusted Value $1,012,865

Adjusted -$45,190 for 176 sqft less living space and -$173,171 for being older. Net adjustment: -$218,361.

3 bed 2 bath 1,173 sqft Built 2005
Raw Value $419,090
Adjusted Value $-52,541

Adjusted -$115,286 for 449 sqft less living space and -$231,925 for being older and -$124,420 for no garage. Net adjustment: -$471,631.

3 bed 1,279 sqft Built 1984
Raw Value $1,121,981
Adjusted Value $812,493

Adjusted -$142,502 for 555 sqft less living space and -$166,986 for being older. Net adjustment: -$309,488.

The Neighborhood

This home is valued 49.4% below the R701575F - OLD TOWN ROUND ROCK median of $319,256. That positions it competitively for buyers comparing within the neighborhood. The neighborhood appreciated 4.3% over the past year.

R701575F - OLD TOWN ROUND ROCK

below average
360 Properties
$319,256 Median Value
+4.3% YoY Change
5% Have Pool
24% Have Garage
This Home
$161,664
Median
$319,256

This home is -49.4% below the subdivision median.

Tax Analysis

The estimated annual property tax is $1,313 across all districts. With a homestead exemption claimed, that drops to $643 — saving $670 per year. That's $54 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%$652
Round RockCity0.3720%$271
Williamson CountyCounty0.3694%$270
Austin Community Collegespecial0.1034%$75
Williamson County FM/RdCounty0.0443%$32
Upper Brushy Creek WCIDWater0.0170%$12
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$1,313

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $78,112 would pay approximately $488 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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