'Speculation' is a term with pejorative sense to describe the operation consisting in making financial or commercial transactions, hoping to profit on price changes. The economist Jose Manuel Naredo defines it in a much more clear and didactic as the act of 'resell at a profit' (Naredo, JM, 1998). The speculation is exerted on the purchase and sale of any category of goods: consumption, raw materials, securities, currencies, and so on. " the only conditions that are required to provide room for speculation is that the prices of such goods to submit variations in space and in time exceed the cost of speculation. What comes to saying that the speculation can be exercised on any object with which we deal, provided that it sell at a price higher than what we buy. The special feature that makes these goods quote stands forever in its unique character is not a question of goods that can be produced in series, but objects with a unique specificity. In this case, real estate, plots of land have specific characteristics that differentiate them from other types of goods that are produced in series, as the soil '(') can not be transferred, it has a fixed location, which confers monopolistic privileges to the owner '(Harvey, D. 1977, pp. 163-165). The specificity of the soil is a characteristic it shares with other goods subject to speculation, such as works of art or Antique. However, soil, has other advantages over the rest of goods, nobody can do without a place to live and produce, you can spend a long time without changing hands, to be something permanent provides the opportunity to store wealth (the inversion brick) and also 'the soil does not require maintenance to keep its potential use' (Harvey, D. 1977, p. 165).