Urban development in Spain is possibly one of the many aspects to highlight in that country, because this character is shown before the world as a strong image and example to follow due to the magnificence of its cities and its excellent development not only urban but also social. Urban planning in Spain dates back to the middle ages, where successfully began the planning and realization of urban planning, however it is very important to mention that the existence of urbanism in cities as Rome and Greece preceded this process from many centuries ago. The first great step taken by Urbanism in Spain takes place in 14th century where the first Spanish urban planner Eiximenes try the Organization of new cities in his theological writings, having significant impact and influence in the development of new planes as the kingdoms of valencia and Castile. For the era of the conquests above levels had a conjugation and important influence in the development of new cities in the distant civilizations India, where is very important to say so, the Spanish urban planners began to perform his early research of social location. In the age of enlightenment leading architects, Socialists and city planners saw with concern the elaboration of the new plans of the major cities of Madrid and Barcelona, put these possessed significant amounts of people and targeted sectors to work and other commercial activities; because of this, these same characters began the elaboration of various planes focused on urban social and commercial distribution, thus achieving an excellent organization that until today are compared with other well-known Italian and French. Centuries XIX and XX are crucial part in the history of Spanish urbanism, already that the existence of the well-known cities of coal, were causing significant damage to the civilizations and the population, especially in areas such as housing and urbanism itself in these centuries. However and thanks to advances in urban Spaniards new cities created by architects and engineers avoided this effect so that Spain was one of the countries with less impact in this area. It is very important to mention that in the nineteenth century in the Spanish population growth and industrial development made the planning of new cities and yes the new neighborhoods, give with a view to future, since the new plans focused more on meeting such growth budgeted in the future. Possibly the highest point reached by the Spanish urbanism is achieved for the 20th century where the implementation of urban planning laws and the successful creation of the new housing policy, have resulted in the improvement of important cities such as Barcelona, Madrid and valencia, achieving as it is known today the creation of the most recognized cities in the Iberian peninsula. At present the Spanish development on the subject of urban planning is highly recognized worldwide, especially in Europe, since the implementation of new trends such as rationalism created in Spain and applied in the cities of the same; they were applied to other civilizations thanks to important architects like Secundino Zuazo and Fernando Garcia Mercadal.