Beta Williamson County, TX only — data and coverage are limited during early access.

800 S IH 35, UNIT #C, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

2 bed1 bath904 sqftBuilt 1940

Property at a Glance

This home is estimated between $123,817 and $909,064, with a best estimate of $234,067. That places the property below the R332479H - CHISHOLM VALLEY & NORTHRIDGE ACRES & WILLOW RUN median of $281,358, in a neighborhood that declined 9.6% over the past year.

Estimated Value Range

$123,817 $909,064
Best Estimate
$234,067
WCAD Value
$148,854
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 $123,817 and $909,064. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

814 IH 35 S, ROUND ROCK, TX 78681
0.00 mi 82% similar Same subdivision
2 bed 1,303 sqft Built 1945
Raw Value $223,119
Adjusted Value $123,817

Adjusted -$86,069 for 399 sqft less living space and -$7,795 for being older and -$5,438 for no garage. Net adjustment: -$99,302.

806 IH 35 S, ROUND ROCK, TX 78681
0.00 mi 81% similar Same subdivision
3 bed 1 bath 752 sqft Built 1920
Raw Value $170,099
Adjusted Value $234,067

Adjusted +$32,788 for 152 sqft more living space and +$31,180 for being newer. Net adjustment: +$63,968.

3 bed 2 bath 1,072 sqft Built 1978
Raw Value $1,017,511
Adjusted Value $909,064

Adjusted -$36,240 for 168 sqft less living space and -$59,243 for being older and -$7,526 for no pool and -$5,438 for no garage. Net adjustment: -$108,447.

800 S IH 35, UNIT #A, ROUND ROCK, TX 78681
0.00 mi 71% similar Same subdivision
3 bed 656 sqft Built 1960
Raw Value $165,589
Adjusted Value $187,906

Adjusted +$53,497 for 248 sqft more living space and -$31,180 for being older. Net adjustment: +$22,317.

3 bed 2 bath 2,580 sqft Built 1952
Raw Value $1,171,695
Adjusted Value $791,452

Adjusted -$361,535 for 1,676 sqft less living space and -$18,708 for being older. Net adjustment: -$380,243.

The Neighborhood

This home is valued 47.1% below the R332479H - CHISHOLM VALLEY & NORTHRIDGE ACRES & WILLOW RUN median of $281,358. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 9.6% over the past year.

R332479H - CHISHOLM VALLEY & NORTHRIDGE ACRES & WILLOW RUN

below average
1,006 Properties
$281,358 Median Value
-9.6% YoY Change
2% Have Pool
84% Have Garage
This Home
$148,854
Median
$281,358

This home is -47.1% below the subdivision median.

Tax Analysis

The estimated annual property tax is $2,389 across all districts. With a homestead exemption claimed, that drops to $1,179 — saving $1,210 per year. That's $98 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%$1,186
Round RockCity0.3720%$494
Williamson CountyCounty0.3694%$491
Austin Community Collegespecial0.1034%$137
Williamson County FM/RdCounty0.0443%$59
Upper Brushy Creek WCIDWater0.0170%$23
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$2,389

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $234,067 would pay approximately $1,461 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.

View full property details