SF Chronicle: $65 million will buy you an unfinished mansion on S.F.’s Gold Coast.

It would be one of the most expensive houses ever sold in San Francisco – a neoclassical villa with a four-story floating staircase and glass atrium, a facade of French limestone and a roof of 19th century Florentine tile is on the market for $65 million. Despite the price tag, the home is a mere shell – it doesn’t have interior walls, floors or ceilings – and will require more than $10 million to complete.