Gold Hill, Silver Lane or Bronze Close: Olympic returns?

John Walton/EMPICS Sport

If you want a house that's a sparkling investment, then you need to track down one of the rare streets paved with gold in the UK. There are apparently 61 streets with the word 'Gold' in the title, and according to Zoopla, they are worth more than those with silver or bronze names.

So what's in a name?