As reported in the Evening News, the Scottish Fire and Rescue Service (SFRS) were called to a blaze affecting several properties at George IV Bridge at 6.18am last Tuesday (August 24).
A firefighter was taken to hospital for precautionary checks but released later the same morning, while one other person was treated at the scene.
Images from the scene showed smoke pouring from a branch of Patisserie Valerie, next door to the Elephant House cafe, which was made famous as the place where Rowling created some of her stories.
George IV Bridge and Candlemaker Row remain closed to traffic, while a pavement on the other side of George IV Bridge reopened to pedestrians.
Now, work to shore up the fire-hit building has started in The Oz Bar in Candlemaker Row, as well as Merchants Restaurant and Bar in nearby Merchant Street.
Elephant House owner David Taylor told BBC Scotland he was still unable to get inside his cafe.
Mr Taylor said: “They are shoring up each level from the bottom up. There are two floors below my cafe.
“So we haven't been able to start the salvage process yet or get loss adjusters in from our insurers as it's not safe to enter.
“I'm hoping to get in by the end of the week.”
Mr Taylor previously spoke of his devastation at the damage caused by the blaze.
He said: “I think it will take months to rebuild. Everyone has suffered over the last two years and we had been having a half decent festival, even although we were running at 50%, so to have suffered this fire is terrible.”
Oz Bar owner Tom Ponton said underpinning was needed before any work could begin.
He told BBC Scotland: “We will need a new ceiling and a new floor.
“We will be aiming to reopen again before Christmas. It's very upsetting.”
A City of Edinburgh Council spokeswoman said ceilings were being propped up so that premises in the building were safe for workmen to go into.
Flats above the shops were also evacuated firefighters tackled the blaze and remain empty.