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Since the early 1960s, Western countries have experienced a new stage in the process of integration of office activities into the economy. The number of office workers has risen sharply, while a property market has developed offering mainly rental and speculative products, including property schemes in urban peripheries. This trend challenges the position of the city centre, formerly the exclusive space of office activities. Is this the symbol of the general decline of city centres, or rather a classic market process, expressing tensions between supply and demand for central space and accentuating the specialisation and selectivity of the city centre? The hypothesis in this paper is that the geography of offices is more strongly determined by the logic of the property market (the interests of property developers, investors and marketers) than by conventional factors of location of user enterprises.