Canadian home prices continued their upward march in April, driven by strong investor demand in Vancouver, as cracks in the Toronto condominium market may be starting to appear.The Canadian Real Estate Association said yesterday the average price of a home sold in April in Canada was $372,544, up 8% from a year ago. It was the third straight month that the average price rose 8% on a yea-over-year basis but the Ottawa-based group cautioned that the figure was skewed due to “surging multimillion-dollar property sales in selected areas of Greater Vancouver.”...orries about the sustainability of the housing market could be stoked by a report from Urbanation Inc., which monitors the Toronto condominium market. The group says more than 50% of condominiums purchased in the last year were by buyers who do not intend to occupy their units and plan to rent in many instances. Condominium rents in Toronto in the first quarter of 2011 were $2.11 per square foot compared to $2.09 a year earlier, a 0.8% increase. Condominiums being registered now and ready to be occupied are priced for sale at $450 per square foot range while newer units are going for $550 per square foot.