The city of Pereira has presented a great activation on the construction area because it holds a wide zone of expansion and for being located strategically - in the golden circle, regional scene (stage) from where Colombia will be projected by more force towards the Pacific valley. The great activation on the construction area in the city of Pereira, in the last years, does necessary to deepen in the different variables as uses from the authorized ground, Geographical and economic zones, socioeconomics’ layers, and forces of supply and demand that take part in the real estate market, with the purpose of offering to the community tools for the decision making at the moment for investing in property root, according to the tendency of the real estate development and contributing in the construction of the economic and financial observatory of the city. Real estate dynamics is not united solely to the projects or new constructions, this is also pronounced in used buildings.