I don't think this is entirely correct, I think there might be some disagreement in Islam as to whether interest is actually forbidden
From the Quran:
From the Hadith:
* The Prophet, Peace be upon him, said: "There will certainly come a time for mankind when everyone will take riba and if he does not do so, its dust will reach him."
* The Prophet, Peace be upon him, cursed the receiver and the payer of interest, the one who records it and the two witnesses to the transaction and said: "They are all alike [in guilt]."
For instance, my biggest issue with the scheme you mentioned is that, why would a third party come and buy the property and resell it back to you if they did not have an incentive (i.e. they have a buyer already lined up)? And can the contract be conditional that you have to agree that they sell it to you after they buy it? How is the profit rate set? Etc.
There are other schemes which seem permissible (e.g. a group of people agree to buy a house, then they find a renter and split up the rent between them. This way, the risk is spread across everyone, not just the one who owes the loan. The renter can then decide to buy shares of the house along the way). Of course, there need to be scholars who review this since there are small things that can render the agreement non-Shariah compliant.