This book describes the factors to be taken into account to achieve new and advanced types of ecological and bioclimatic social housing, capable of satisfying the needs of its occupants, and which can be designed perfectly integrated sets of social housing in the social fabric and Urban cities, allowing them to evolve in the desired direction. Such as social housing is the architectural style with the least possible economic budget, possible ecological and bioclimatic more effective actions should be carefully chosen, and do not present any economic growth.