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

1509 SARAH CHRISTINE LN, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

4 bed2 bath1,344 sqftBuilt 2015

Property at a Glance

This home is estimated between $545,163 and $638,143, with a best estimate of $577,089. That places the property above the R303513C - Enclave at Highland Horizon median of $555,714, in a neighborhood that declined 8.5% over the past year.

Estimated Value Range

$545,163 $638,143
Best Estimate
$577,089
WCAD Value
$584,422
High Confidence

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

Based on 5 comparable properties in R303513C - Enclave at Highland Horizon, this home's estimated market value is between $545,163 and $638,143. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

1508 SARAH CHRISTINE LN, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
4 bed 2 bath 1,347 sqft Built 2016
Raw Value $585,883
Adjusted Value $565,077

Adjusted -$1,250 for 3 sqft less living space and -$19,556 for being older. Net adjustment: -$20,806.

1515 SARAH CHRISTINE LN, AUSTIN, TX 78717
0.44 mi 100% similar Same subdivision
4 bed 2 bath 1,347 sqft Built 2016
Raw Value $565,969
Adjusted Value $545,163

Adjusted -$1,250 for 3 sqft less living space and -$19,556 for being older. Net adjustment: -$20,806.

4005 ISABELLA GRACE CT, AUSTIN, TX 78717
0.49 mi 100% similar Same subdivision
4 bed 2 bath 1,321 sqft Built 2016
Raw Value $587,058
Adjusted Value $577,089

Adjusted +$9,587 for 23 sqft more living space and -$19,556 for being older. Net adjustment: -$9,969.

4001 ISABELLA GRACE CT, AUSTIN, TX 78717
0.49 mi 100% similar Same subdivision
4 bed 2 bath 1,229 sqft Built 2017
Raw Value $593,803
Adjusted Value $602,625

Adjusted +$47,933 for 115 sqft more living space and -$39,111 for being older. Net adjustment: +$8,822.

4004 ISABELLA GRACE CT, AUSTIN, TX 78717
0.49 mi 100% similar Same subdivision
4 bed 3 bath 1,224 sqft Built 2016
Raw Value $607,682
Adjusted Value $638,143

Adjusted +$50,017 for 120 sqft more living space and -$19,556 for being older. Net adjustment: +$30,461.

The Neighborhood

This home is valued 5.2% above the R303513C - Enclave at Highland Horizon median of $555,714. With 126 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 8.5% over the past year.

R303513C - Enclave at Highland Horizon

typical
126 Properties
$555,714 Median Value
-8.5% YoY Change
0% Have Pool
100% Have Garage
This Home
$584,422
Median
$555,714

This home is +5.2% above the subdivision median.

Tax Analysis

The estimated annual property tax is $11,712 across all districts. With a homestead exemption claimed, that drops to $10,354 — saving $1,358 per year. That's $863 per month a buyer should budget. The assessed value increased -2.3% vs the subdivision average of -8.5%. This above-average increase gives a protest opportunity score of 31 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$5,219
Brushy Creek MUDMUD0.3868%$2,261
Williamson CountyCounty0.3694%$2,159
Austin Community Collegespecial0.1034%$604
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$584
Brushy Creek MUD Defined AreaMUD0.0900%$526
Williamson County FM/RdCounty0.0443%$259
Upper Brushy Creek WCIDWater0.0170%$99
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.0041%$11,712
31 / 100

Some opportunity.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $577,089 would pay approximately $3,602 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