Utilize the input text as a context reference, choose the right relationship between apartment and London from the options. Options: product/material produced, manufacturer, distributed by, industry, position held, original broadcaster, owned by, founded by, distribution format, headquarters location, stock exchange, currency, parent organization, chief executive officer, director/manager, owner of, operator, member of, employer, chairperson, platform, subsidiary, legal form, publisher, developer, brand, business division, location of formation, creator.

If the asking price is achieved it will be at the very top end of sales across mainland China, putting Shanghai's luxury apartment market on a similar level to Sydney, but well below London and New York.

Answer: location_of_formation