Which source is used to compile non-residential building starts in Canada?

The correct source for compiling non-residential building starts in Canada is Statistics Canada. This agency is responsible for collecting and analyzing statistical data across various sectors, including construction. Specifically, Statistics Canada tracks and reports on building permits, construction activity, and housing starts, including residential and non-residential categories.

The importance of this data is pivotal for understanding trends in the construction industry, making informed economic decisions, and guiding policy development. Unlike other options, which might focus on different aspects of real estate or governmental functions, Statistics Canada provides the comprehensive and systematic data needed to analyze non-residential building starts accurately. This reliability and relevance to construction statistics underscore why it is the correct choice.