#CON RESIDENTIAL BLOCK IN ELDA Typological residential development and bioclimatic strategies 2011. ELDA Urbanism III. University of Alicante. Building typology based on criteria of flexibility and sustainability: diaphanous interns dwellings (except hard core), facilitating cross-ventilation that allows the natural renewal of air without forced ventilation systems and all rooms overturned to the street, thus dispensing with courtyards.