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Urban form

Height and skyscrapers

Height is the most visible and least decisive dimension of urban form: a skyscraper concentrates floor area on little land, but surrounded by emptiness it yields less density and less life than a six-storey block. Building tall is an economic —land rent— and symbolic decision before it is a necessity.

The skyscraper was born in Chicago in the 1880s thanks to the lift and steel, and today it is above all a financial and image product: the half-empty luxury residential tower is the built form of financialisation. Height regulation, so hotly debated, matters less than the regulation of uses and site coverage.

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