Read downtown Calgary's skyline as a chart of the oil price. Every major tower was commissioned near a crude-price peak and delivered into the next bust, a lagging indicator drawn in glass and steel.
Start
The Bow

A 236-metre, 58-storey crescent completed in 2012, commissioned by EnCana at the height of the oil-sands boom. The tallest bet on the barrel, abandoned by both companies that placed it.

The 215-metre west tower completed in 1984 as headquarters for the Crown corporation Petro-Canada. Locals called it Red Square. The origin scar of the boom-and-bust skyline.

At 247 metres and 56 storeys, the tallest building in Calgary and in Western Canada. Ground broke months before the 2014 price collapse and it topped out into a 20-percent vacancy market. The perfect lag.

Two identical 197-metre towers, 52 storeys each, built eleven years apart. Canada's tallest twin buildings, their cowboy-hat crowns the corridor's only postmodern wink. Two recoveries printed as two towers.

The floor of the canyon: roughly three dozen sandstone buildings from 1880 to 1930, the city before oil, a National Historic Site. At lunchtime it is where the vacancy rate becomes a street.

The last boom tower. A 212-metre east tower opened in 2011, a 177-metre west tower in 2014, the year the oil price began its slide. LEED Platinum glass, delivered as the barrel started falling.

The Canadian Pacific mainline is the hard seam between the office core and the Beltline. Cross it and the thesis turns forward: a 153-million-dollar program converting empty towers into homes.

The counter-economy. In 2004 this strip spontaneously filled with up to 55,000 Flames fans and earned its name. The one part of downtown Calgary whose vitality never tracked the oil price.
Weekdays, late morning through early afternoon. The thesis of this walk depends on reading the towers as working office buildings, and Stephen Avenue at lunchtime is where the downtown vacancy rate becomes visible as footfall on the street. Weekends empty the office core almost entirely, which flattens the contrast between the glass towers above and the sandstone street below. Walk in daylight so the completion dates, the setbacks, and the crowns are all legible, and so the glass reads as glass rather than as a dark wall. The Beltline end of the route, Seventeenth Avenue, is liveliest in the late afternoon and evening if you want to end on the counter-economy at full tilt.
Go deeper on what you'll see, hear, and walk through.




