For most people in Hong Kong, a flat means a nest egg, refuge, family home - and usually all these things rolled into one.
But for many wealthy mainlanders who have splashed out on some of the city's priciest apartments, they mean something quite different.
Many do not plan to live in them in the immediate future, some view their new acquisitions as holiday homes, while the super rich may just use them to store designer handbags.
Shi Aobing, who owns a shoe-making firm in Wenzhou , recalled how his wife ended up buying a flat during one of her shopping trips to Hong Kong three years ago.
He said she bought an 800 sq ft flat at The Arch at Kowloon station - a favourite among mainland buyers - for about HK$10 million.
'We haven't lived there. We don't plan to move to Hong Kong because we have permanent residency in Singapore, where my kids are studying. We bought it for an investment and it's done well so far,' said Shi, referring to steady rises in luxury property prices.