After building cabin communities in Ghana, Tanzania and Indonesia, architect John van Nostrand is hoping to bring his solution to the affordable housing crisis to Toronto.The founder of non-profit Two Steps Homes aims to raise $2.5 million to build 50 cabins on city-owned land to house homeless people until permanent housing becomes available.The 10-square-metre cabins are designed to meet Ontario Building Code standards and will be built around a communal space for cooking, cleaning, and commun