$1,375
0 bd1 ba266 sqft
823 S Union Ave APT 110

The average Westlake, CA home value is $717,506, down 10.2% over the past year.
Zillow Home Value Index (ZHVI), built from the ground up by measuring monthly changes in property level Zestimates, captures both the level and home values across a wide variety of geographies and housing types.
Typical Home Values: $717,506
1-year Value Change: -10.2%
(Data through January 31, 2026)
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