JK Rowling's house sold for over 2.25 million pounds

According to Estate agents Rettie, it took just three weeks from when it went on the market for offers over 2.25 million pounds to the missives being concluded on the sale, which attracted more than 16,000 unique visits on its website.

The multi-millionaire writer moved from the eight-bedroom Merchiston home to a house in Barnton in 2009, the 'BBC News' reported.

The author of the bestselling Harry Potter series about a boy wizard lived with her husband Neil Murray and her three children at the Merchiston property.

The stone-built house is on two floors and also has an office building.

The home is described as being situated in "one of Edinburgh's most exclusive conservation areas", in the prospectus for the property.

It has a "discreet landscaped and walled garden" and had undergone a redesign to "complement retained Victorian period features".

It also has a summerhouse, various outhouses and a double garage.

Despite 65 per cent of the web visits originating from overseas, those who viewed the property and noted interest were Scottish-based businessmen, James Whitson, director of Rettie, said.

"This was an iconic house in Edinburgh and it was a privilege to be entrusted with its sale.

"The fact we secured a buyer so quickly demonstrates that even in the most challenging of economic environments, we are well-placed to service the needs of our clients at the higher end of the market," he said.

Rowling's husband applied for planning permission, in July, for two huge interlocked treehouses at their new home in Barnton.

The tree houses, according to the application, were for their children to play in. It is understood the tree houses, which would be built by Blue Forest, would cost 150,000 pounds, the report said.