Michael's sister, Melanie, has been in charge of making all the arrangements, while his dad, Kuriaco, 75, finalizes a private Greek-Orthodox service just for family. She adores the Highgate house, one of the first he bought.
It is also reported that Michael's older sister, Yioda Panayiotou, 57, will receive a large portion of the singer's estimated £105m fortune.
The plot where the Wham! star's mother, Lesley Angold, is buried at Highgate Cemetery is said to have been cleaned fuelling speculation that Michael will be laid to rest beside her.
Following the return of the results, and the revelation an inquest wouldn't be carried out, the family have been able to organise his funeral, which is rumoured to be taking place on Monday (13Mar17) or Tuesday (14Mar17).
"George would always make a big deal out of Mother's Day", the insider told the Sunday People.
The source said: "Lesley was George's world so it is fitting that they should now be together".
Mystery still surrounds the location and timing of George's funeral - who was found dead at his home on Christmas Day aged 53. "The cemetery has a very special place in his heart", said a source.
Former Spice Girl Geri Horner, 44, who revealed she gave her new son the middle name George after the Faith singer, will reportedly be giving a reading the service.
George Michael's cousin, Andros Georgiou, has sensationally alleged that the star's boyfriend, Fadi Fawaz, was paid by George for the company and that their relationship was entirely "business". "I know so many of you would want to be there to be able to say your last Goodbye".
Andros also insisted to The Sun that Fadi will not be inheriting any of George's huge estate, accusing the hairdresser of using George's death to "promote himself". What I like, real friends tell you how it is.
'But I don't know anything about the funeral, I really don't know anything.