Developers need to build larger units for families in the city. And people need to get over the notion that they can live in a single family house in an urban area. It's delusional. There are 6 million people in the Greater Toronto area. Removing existing single family houses in the central city (radical, yes!) and building up with larger apartment units is the answer. Sprawl will only cause more problems of traffic, air pollution, loss of green space. Look at LA - it's a mess.