Readers of my blog will know that 1970s is one of my favourite periods in architecture, and I love to highlight exactly why whenever possible. During the 1970s Ottawa went through its first condominium building boom with a series concrete towers built across the city. These buildings are typically very straightforward in design, with few design frills, and almost seem utilitarian in style. Yet, upon closer inspection, many of these buildings have strikingly modern lines that create a rhythm of solids and voids, and it is common for the balconies to take on a sculptural quality. Most of these buildings have rectangular footprints, but some were built as squares or even in Y-formation. Inside the units are typically rectangular in shape, but are notable for their size, especially the large living spaces - one of the advantages of concrete construction is that it allows for large spans without needing a support post. During this era...