New home construction is expected to get a boost in Durham Region, thanks to a tight resale market. The Canada Mortgage and Housing Corporation has released September figures, showing just 107 single-detached starts in the Oshawa CMA, down 12 percent year-over-year. CMHC officials say Oshawa remains one of the tightest resale markets in the GTA. Meanwhile, in the Toronto CMA, there were over 3, 300 starts, the majority of which were, multiple units. Slower condo sales are expected to moderate the level of starts in the months ahead.