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

1105 CELTIC CV, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed3 bath2,563 sqftBuilt 2003

Property at a Glance

This home is estimated between $601,605 and $1,022,742, with a best estimate of $904,446. That places the property above the R140601C - Hidden Glen median of $813,527, in a neighborhood that declined 1.5% over the past year.

Estimated Value Range

$601,605 $1,022,742
Best Estimate
$904,446
WCAD Value
$923,129
High Confidence

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

Based on 5 comparable properties in R140601C - Hidden Glen, this home's estimated market value is between $601,605 and $1,022,742. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

1104 CELTIC CV, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,902 sqft Built 2004
Raw Value $727,387
Adjusted Value $601,605

Adjusted -$117,718 for 339 sqft less living space and -$8,064 for being older. Net adjustment: -$125,782.

1108 CELTIC CV, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,053 sqft Built 2003
Raw Value $845,644
Adjusted Value $1,022,742

Adjusted +$177,098 for 510 sqft more living space. Net adjustment: +$177,098.

1101 CELTIC CV, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,454 sqft Built 2003
Raw Value $866,596
Adjusted Value $904,446

Adjusted +$37,850 for 109 sqft more living space. Net adjustment: +$37,850.

1109 CELTIC CV, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,052 sqft Built 2003
Raw Value $824,201
Adjusted Value $1,001,646

Adjusted +$177,445 for 511 sqft more living space. Net adjustment: +$177,445.

1100 CELTIC CV, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
5 bed 3 bath 2,306 sqft Built 2004
Raw Value $815,529
Adjusted Value $896,708

Adjusted +$89,243 for 257 sqft more living space and -$8,064 for being older. Net adjustment: +$81,179.

The Neighborhood

This home is valued 13.5% above the R140601C - Hidden Glen median of $813,527. With 345 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 1.5% over the past year.

R140601C - Hidden Glen

typical
345 Properties
$813,527 Median Value
-1.5% YoY Change
0% Have Pool
99% Have Garage
This Home
$923,129
Median
$813,527

This home is +13.5% above the subdivision median.

Tax Analysis

The estimated annual property tax is $16,610 across all districts. With a homestead exemption claimed, that drops to $15,189 — saving $1,421 per year. That's $1,266 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%$8,244
Round RockCity0.3720%$3,434
Williamson CountyCounty0.3694%$3,410
Austin Community Collegespecial0.1034%$955
Williamson County FM/RdCounty0.0443%$409
Upper Brushy Creek WCIDWater0.0170%$157
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$16,610

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $904,446 would pay approximately $5,646 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