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800 CR 117, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath2,383 sqftBuilt 1978

Property at a Glance

This home is estimated between $226,745 and $1,286,525, with a best estimate of $271,835. That places the property below the R002D78G - East Round Rock Williamson Co Abstracts lt 20 Acs median of $594,322, in a neighborhood that declined 11.1% over the past year.

Estimated Value Range

$226,745 $1,286,525
Best Estimate
$271,835
WCAD Value
$897,577
Low Confidence

Based on 5 comparable properties(1 in the same subdivision)

There are 5 comparable properties within range, but few are in R002D78G - East Round Rock Williamson Co Abstracts lt 20 Acs. The estimated range of $226,745 and $1,286,525 should be treated as a rough guide.

Comparable Properties (5)

600 CR 117, ROUND ROCK, TX 78665
0.00 mi 97% similar Same subdivision
4 bed 2 bath 1,440 sqft Built 1979
Raw Value $880,219
Adjusted Value $1,286,525

Adjusted +$310,093 for 943 sqft more living space and -$3,840 for being older and +$100,053 for having a garage. Net adjustment: +$406,306.

3 bed 2 bath 2,347 sqft Built 2003
Raw Value $355,990
Adjusted Value $271,835

Adjusted +$11,838 for 36 sqft more living space and -$95,993 for being older. Net adjustment: -$84,155.

3 bed 2 bath 2,334 sqft Built 2003
Raw Value $352,517
Adjusted Value $272,637

Adjusted +$16,113 for 49 sqft more living space and -$95,993 for being older. Net adjustment: -$79,880.

3 bed 2 bath 2,477 sqft Built 2003
Raw Value $361,259
Adjusted Value $234,355

Adjusted -$30,911 for 94 sqft less living space and -$95,993 for being older. Net adjustment: -$126,904.

3 bed 2 bath 2,504 sqft Built 2003
Raw Value $362,527
Adjusted Value $226,745

Adjusted -$39,789 for 121 sqft less living space and -$95,993 for being older. Net adjustment: -$135,782.

The Neighborhood

This home is valued 51.0% above the R002D78G - East Round Rock Williamson Co Abstracts lt 20 Acs median of $594,322. With 82 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 11.1% over the past year.

R002D78G - East Round Rock Williamson Co Abstracts lt 20 Acs

outlier high
82 Properties
$594,322 Median Value
-11.1% YoY Change
1% Have Pool
43% Have Garage
This Home
$897,577
Median
$594,322

This home is +51.0% above the subdivision median.

Tax Analysis

The estimated annual property tax is $13,708 across all districts. With a homestead exemption claimed, that drops to $12,292 — saving $1,416 per year. That's $1,024 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%$8,016
Williamson CountyCounty0.3694%$3,316
Austin Community Collegespecial0.1034%$928
Williamson County ESD #9 - Round RockESD0.0999%$897
Williamson County FM/RdCounty0.0443%$398
Upper Brushy Creek WCIDWater0.0170%$153
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.5272%$13,708

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $271,835 would pay approximately $1,697 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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