Redfin and Zillow’s sale histories aren’t always accurate. Even for just the lot that would’ve been too low in 2003. That may have been a new loan.
If they bought in 2003 they probably paid somewhere between 700k to 1m, and then add on their improvements.
Just look at how long La Cresta listings over $1m have been on the market. NO ONE is interested in these. Better off buying a home in Bear Creek for 700k to live in, and two in Redhawk for $300k each to rent out. That’s if you really had to spend the money, say for 1031 reasons.
About Bear Creek, this home is on the wrong side of Bear Creek near the empty home sites, and was part of the same development: