I do not know how many times JL visited the property whilst CL lived there (does anyone?). I know only about the times JL visited after CL disappeared as per this article
https://www.thesun.co.uk/news/31198...-the-missing-chefs-broken-and-neglected-home/.
"Despite a hugely high-profile investigation and a subsequent murder inquiry, no trace has been found.
Joan, who is long divorced from Claudia’s dad Peter,
has only been to her daughter’s house once before in the years since Claudia disappeared.
That was six years ago, when she accompanied a rep from Claudia’s mortgage firm, which has indefinitely suspended the loan, on a brief inspection
to ensure the building was secure.