Less is more when it comes to an address. Posh houses don’t have numbers, let alone the dreaded word “street” in the address. However, you can’t always trust a name: Highclere House, Pendragon Hall, and Matchwood Manor sound like ancient family seats but all are new (and one is a bungalow).

People usually rename homes when they move in as a way of erasing former owners. A posh address also adds value. The London market is particularly sensitive to snobbery; a survey commissioned by Mayfair estate agent Wetherell found the best addresses can add as much as 40 per cent to the price.

Another survey, by property portal OnTheMarket.com, found that up to £30,000 could be added to the price of homes with regal titles. So when London estate agent Tim Day decided to rename his Suffolk home to something more exciting, he inadvertently struck gold.

“I changed it from the mundane Esher Cottage to the far grander Crown Cottage,” he says. “It was unbelievably easy and took just 24 hours.”