It is evident that available technologies on office building sector in Shiraz relay on traditional construction especially on wet methods. Wet system process depends on human interpretation (The human interpretation is the basics of the systems) which cause major problems in construction quality. For this propose this dissertation focus on construction method in office building in Iran. Compared to wet construction, dry system is new technology in the construction industry. Dry construction system is commonly used for new office buildings; it becomes a major investment in both construction and long-term success of the building. Nowadays prefabrication, evens the simpler types, are far more sophisticate products than current counterparts. Prefabricated system technology has developed, over the years, into a proliferation (reproduction) of highly engineered design. During the investigation, various dry method prefabricated facade possibilities for office building in Shiraz were studied and analyzed . Office building facades, apart from its appearance, functions as an external enclosure to protect the building from weather and to provide maximum comfortability for citizens. Its construction is not only an assembly of several components, but an advanced technology with involves sophisticated consideration. To achieve the aim of the thesis, facade of few buildings which were constructed in Shiraz was studied according to construction system and performance efficiency. Thereafter, best solution was developed regards to: •Construction system •Installation •Performance efficiency •Sustainability •Aesthetic and adaptability