A former landlord of mine, whose house I was renting in Palo Alto at the time (2021), shared that they were planning to kick off a major renovation that would total around 800K$ all-in.
That's an absolutely stunning figure to renovate a 3bdrm home, considering I've also heard anecdotes from outside California, of completely stripping down a similar-sized home to the studs, redoing all plumbing / electricity / walls / flooring / high-end-everything in the kitchen... for under 250K$.
So, where's the extra half-million dollars going? The delta in renovation costs alone between these anecdotes represents 10 years of the average California constructor worker's salary [per the BLS](https://www.bls.gov/oes/current/oes472061.htm).