Thesolution we choose for the first area isdeeply founded on a typological research, linked to the traditionalnomadic and rural architectonic imaginary if Middle East countries,translated into a sustainable use of modern technologies, materialsand renewable energies. The aim is to create a complex urban figurethat must be able to built up material and logical relations with thecity of Teheran.

Fromthe first analytical phase, some foundamental elements became ourguide line for all architectonic choices, according to the necessityto answer at the specific genius loci of Teheran. One importantevidence of the metropolitan area, the strong air pollution, became,together with the influence of prevailing local winds that can beused in an active way by the building, suggested a physical referencewith a both natural and architectonic archetype,linked to the physical phenomena of corrasion: a particular kind ofabrasion created by interaction of wind and sand in Middle Eastdesert areas. The junction between this strong image and aparticular roofscape solution, typical of some informal settlementsof Middle East, based on fixed windscoops that channel a continuousbreeze into buildings as a passive wind collector, has created thekey figure of the project: an huge air deflector at micro-urban scalethat take advantage of the higher position in comparison withsurrounding buildings.

Thebuilding is designed according to the scheme required as a sequenceof eight floors, ruled by an inner bioclimatic void that has adifferent shape at every height, becoming at the same time amultilevel roof garden, a passive system ofinner climate regulation, besides private facing for offices andresidences.
Astrong characteristic is the double public-shopping square, placed atground and at first level, that are widely opened to all metropolitan flows, to public fruition and to cultural and commercialevents.

Theattic floor has a strong relation with the roof garden place at thetop of the building, with a double function: on one hand it is abio-filter of solar radiation and air pollution, with a contemporarymitigation of breeze speed and a water collection system by greenextensive roof, on the other hand it is the green top figure of thebuilding with a deep connection towards residential area. Thearchitectonic image of the building plays with the clear separationbetween the structural body made by a vierendeel beam system joinedto the concrete platform of the first floor. The external skin isbased on the contemporary review of an ancient technique used inde Iranian area, to create clay element as unique huge pieces of 2x2m with good mechanical capabilities end an external wrinkled surfacewith a natural and constant colormood. The final result is acontinuous shell joined to the vierendeel beam system, that is at thesame time an enormous brise soleil, and an activeskin that contribute to maintain a goodhumidity balance inside the building, thanks to the differentpressure levels of the space in between vierendeel beams and outsideskin. This solution, together with a system of huge holes placed inthe south-west facade, with the chimney wind already described and ageothermic plant that exploit the constant temperature of the soilunder the parking floors, is the hearth of a passive cooling andheating system that rules the inner micro climate of the building.The urban role of the building is focused on the aim to link bothmaterially and philologically this new object to the present context,using a contemporary strong statement, through an iconic image ofurban land mark, that has to become an active attractor for newtrends and creative situations inside Teheran. This is the basicreason that has guided the choice to push back the walls of groundfloor in comparison to the platform of the first floor; in this waywe ménage to create a sort of street-square that melt together urbanflows and inside spaces, preserving the current use of pedestrianways at ground floor, but intercepting at the same time all possibleusers for the new urban, social and economic role that this newbuilding must have.