Sao Paulo cannot grow as many other metropolises. Enclosed in a valley growth is constrained and density promoted, see data. However lack of land for development produces the overheating of supply, increase of prices and loss of competitiveness for globalized production.
In a natural form development has jumped beyond Sao Paulo Valley and is extending across Campinas area. Campinas needs to be structured and planned. A forecasted 100% growth on urban land for the next 30 years cannot be left to a disjointed incrementalist approach. In 30 years it will be too late and the chance of Sao Paulo to become a world-class metropolis may be gone forever.