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511 OLD WEST DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath1,305 sqftBuilt 1982

Property at a Glance

This home is estimated between $292,414 and $493,485, with a best estimate of $321,622. That places the property above 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

$292,414 $493,485
Best Estimate
$321,622
WCAD Value
$287,386
Low Confidence

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

There are 5 comparable properties within range, but none are in R332479H - CHISHOLM VALLEY & NORTHRIDGE ACRES & WILLOW RUN. The estimated range of $292,414 and $493,485 should be treated as a rough guide.

Comparable Properties (5)

4 bed 2 bath 1,276 sqft Built 1979
Raw Value $412,181
Adjusted Value $423,114

Adjusted +$6,256 for 29 sqft more living space and +$4,677 for being newer. Net adjustment: +$10,933.

3 bed 2 bath 1,594 sqft Built 1979
Raw Value $350,078
Adjusted Value $292,414

Adjusted -$62,341 for 289 sqft less living space and +$4,677 for being newer. Net adjustment: -$57,664.

3 bed 2 bath 1,625 sqft Built 1984
Raw Value $388,330
Adjusted Value $321,622

Adjusted -$69,028 for 320 sqft less living space and -$3,118 for being older and +$5,438 for having a garage. Net adjustment: -$66,708.

3 bed 2 bath 1,655 sqft Built 1979
Raw Value $380,963
Adjusted Value $310,141

Adjusted -$75,499 for 350 sqft less living space and +$4,677 for being newer. Net adjustment: -$70,822.

4 bed 2 bath 1,134 sqft Built 1979
Raw Value $451,921
Adjusted Value $493,485

Adjusted +$36,887 for 171 sqft more living space and +$4,677 for being newer. Net adjustment: +$41,564.

The Neighborhood

This home is valued 2.1% above the R332479H - CHISHOLM VALLEY & NORTHRIDGE ACRES & WILLOW RUN median of $281,358. With 1,006 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 9.6% over the past year.

R332479H - CHISHOLM VALLEY & NORTHRIDGE ACRES & WILLOW RUN

typical
1,006 Properties
$281,358 Median Value
-9.6% YoY Change
2% Have Pool
84% Have Garage
This Home
$287,386
Median
$281,358

This home is +2.1% above the subdivision median.

Tax Analysis

The estimated annual property tax is $5,171 across all districts. With a homestead exemption claimed, that drops to $3,867 — saving $1,304 per year. That's $322 per month a buyer should budget. The assessed value increased -3.7% vs the subdivision average of -9.6%. This above-average increase gives a protest opportunity score of 30 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$2,567
Round RockCity0.3720%$1,069
Williamson CountyCounty0.3694%$1,062
Austin Community Collegespecial0.1034%$297
Williamson County FM/RdCounty0.0443%$127
Upper Brushy Creek WCIDWater0.0170%$49
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$5,171
30 / 100

Some opportunity.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $321,622 would pay approximately $2,008 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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