Muzzammil Dhedhy Hejaz Group co-founder and executive director "Many people like the ethical and transparent nature of Islamic finance. What is an Islamic or Muslim 'mortgage'? For a practising Muslim, financing a house purchase isn't always as simple as perusing conventional mortgages or calling up a home loan broker. "Islamic finance is built on two core principles: avoiding interest (riba) and avoiding excessive uncertainty or speculation (gharar)," Mr Dhedhy said. As Australia's Muslim community has grown, so too has demand for Islamic home finance products.