TV presenter and socialite Peaches was found dead at her home in Kent on Monday, 7 April. Kent Police have described her death as non-suspicious but sudden and unexplained.
Kent County Council have now announced that a post-mortem will take place tomorrow.
Her body has been transferred to Darent Valley Hospital in Dartford.
The statement added: "A decision on whether there needs to be an inquest depends upon the final results of the post mortem."
Police were called to Peaches' home near Wrotham at lunchtime on 7 April.
A statement from Kent Police read: "Police were called at 1:35pm on 7 April 2014 to an address near Wrotham following a report of concern for the welfare of a woman. A woman aged 25 was pronounced dead by South East Coast Ambulance Service.
"At this stage, the death is being treated as an unexplained and sudden death. Officers are working to establish the circumstances around the death."
Peaches leaves behind musician husband Thomas Cohen and their sons Astala, nearly two, and Phaedra, nearly one.
Paying tribute to the late star yesterday, Thomas said: "My beloved wife Peaches was adored by myself and her two sons. I shall bring them up with their mother in their hearts everyday. We shall love her forever."
Peaches' father Bob Geldof has also released a statement on behalf of the Geldof family, which read: "Peaches has died. We are beyond pain. She was the wildest, funniest, cleverest, wittiest and the most bonkers of all of us. Writing "was" destroys me afresh.
"What a beautiful child. How is this possible that we will not see her again? How is that bearable? We loved her and will cherish her forever. How sad that sentence is."
Peaches' life in pictures:
Copyright: Rex Features Dennis Stone