The article reveals the design features of a new type of multifunctional object Theatron in the context of the existing historical urban environment. The formation of a typologically new object is due to the increased attention of people to cultural and entertainment institutions offering a wide range of services. The need for proper integration of modern architecture into the existing historical development of the city is one of the most important tasks facing the architect. The authors proposed architectural and planning solutions and the creation of recreational space. Since many theater and entertainment structures are located in memorial sites of national significance, or are themselves valuable historical heritage, the reconstruction of theater buildings is a constant and inevitable phenomenon in all countries and is associated with complex controversial issues of simultaneous preservation and the existing buildings’ improvement. In this regard, there is a constant need to “fit” such old buildings to the lifestyle of the modern audience and modern production methods of theaters in the XX-XXI centuries. Due to the technology development, the technology of demonstration space, stage equipment and engineering equipment of the entire building have changed. In addition, serious urban development problems have also emerged over the years. The city scale has changed, the population has increased, and there is a rapidly growing tourist flow. Transport has changed, Parking lots for cars, communication with the metro, landing stages for unloading decorations and other cargo were needed. There are also aesthetic urban planning problems that do not allow freely, unreasonably expand the building, add the new volumes. This work can contribute to the further development and improvement of the proposed methodology for designing public cultural objects.