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1806 OLD SETTLEMENT RD, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath1,296 sqftBuilt 1977

Property at a Glance

This home is estimated between $296,418 and $848,569, with a best estimate of $608,962. That places the property above the R701575F - OLD TOWN ROUND ROCK median of $319,256, in a neighborhood that appreciated 4.3% over the past year.

Estimated Value Range

$296,418 $848,569
Best Estimate
$608,962
WCAD Value
$992,213
High Confidence

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

Based on 5 comparable properties in R701575F - OLD TOWN ROUND ROCK, this home's estimated market value is between $296,418 and $848,569. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

1701 OLD SETTLEMENT RD, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,158 sqft Built 1970
Raw Value $520,749
Adjusted Value $668,630

Adjusted +$35,433 for 138 sqft more living space and +$21,646 for being newer and +$90,802 for having a pool. Net adjustment: +$147,881.

1605 OLD SETTLEMENT, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,972 sqft Built 1984
Raw Value $485,743
Adjusted Value $381,329

Adjusted -$173,570 for 676 sqft less living space and -$21,646 for being older and +$90,802 for having a pool. Net adjustment: -$104,414.

1700 OLD SETTLEMENT RD, ROUND ROCK, TX 78664
0.00 mi 98% similar Same subdivision
3 bed 2 bath 2,360 sqft Built 1975
Raw Value $1,024,776
Adjusted Value $848,569

Adjusted -$273,194 for 1,064 sqft less living space and +$6,185 for being newer and +$90,802 for having a pool. Net adjustment: -$176,207.

1511 CASEY LN, ROUND ROCK, TX 78664
0.09 mi 98% similar Same subdivision
3 bed 2 bath 1,260 sqft Built 1975
Raw Value $314,608
Adjusted Value $296,418

Adjusted +$9,243 for 36 sqft more living space and +$6,185 for being newer and +$90,802 for having a pool and -$124,420 for no garage. Net adjustment: -$18,190.

1705 OLD SETTLEMENT RD, ROUND ROCK, TX 78664
0.00 mi 98% similar Same subdivision
3 bed 2 bath 2,230 sqft Built 1984
Raw Value $904,041
Adjusted Value $608,962

Adjusted -$239,815 for 934 sqft less living space and -$21,646 for being older and +$90,802 for having a pool and -$124,420 for no garage. Net adjustment: -$295,079.

The Neighborhood

This home is valued 210.8% above the R701575F - OLD TOWN ROUND ROCK median of $319,256. With 360 homes in the subdivision, the property sits in the upper tier. The neighborhood appreciated 4.3% over the past year.

R701575F - OLD TOWN ROUND ROCK

outlier high
360 Properties
$319,256 Median Value
+4.3% YoY Change
5% Have Pool
24% Have Garage
This Home
$992,213
Median
$319,256

This home is +210.8% above the subdivision median.

Tax Analysis

The estimated annual property tax is $14,426 across all districts. With a homestead exemption claimed, that drops to $13,028 — saving $1,398 per year. That's $1,086 per month a buyer should budget. The assessed value increased +36.1% vs the subdivision average of +4.3%. This above-average increase gives a protest opportunity score of 100 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$7,161
Round RockCity0.3720%$2,983
Williamson CountyCounty0.3694%$2,962
Austin Community Collegespecial0.1034%$829
Williamson County FM/RdCounty0.0443%$355
Upper Brushy Creek WCIDWater0.0170%$136
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$14,426
100 / 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 $608,962 would pay approximately $3,801 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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