The new buyer of a flat in Stockholm, Sweden, will get to move in with a new dad - as the seller's step-father is refusing to move out.

The flat and all contents - including the 52-year-old man - go to auction on August 26.

Lawyers involved in the sale warned it could get "very messy".

"Whoever buys the flat will have to organise the current tenant's eviction, as clearly outlined in the advertisement we ran in the weekend's papers," he told The Local, Sweden's English-language newspaper.

Prospective buyers should be warned that viewings ahead of the sale may prove difficult - as the current tenant is refusing to let anyone in.