This thesis's main topic is a project of a business incubator implementation, together with its accompanying content, within an industrial heritage building in the city of Rijeka, under the name of railway warehouse number 32. Within the accompanying content there is an art gallery, a recreational center, residential units and a grocery store. The primary research of already existing business incubators and shared workspaces produced the main thesis guidelines regarding the development of the complex. Following the same method, informations about the role such locations occupy within the world of new entrepreneurs was procured, as well as the needs its end users have outside of the incubators, which led to ensuring the necessary accompanying content needed for everyday life. The thesis also deals with the history of the buildings location as well as the city of Rijeka's history on the verge of the 20th century, a time when Rijeka experienced its largest economic and urban development. In the introductory section there's mention of the industrial revolution and the subsequent development of modern building design using new materials such as steel and reinforced concrete in the building construction. Also, the adaptation project is described in the section of the same name, as well as the changes needed in regards to the described and photo-documented original state of the warehouse. In conclusion, industrial heritage sites offer a unique opportunity for an integration of such contents, linking the location of historical economic might with a contemporary effort for a development of new competitive companies. In such ways, new life is brought within the inappropiately cared for environments, all the while protecting the cities industrial heritage and creating an economic value by developing new businesses.