With the development of the times, a large number of industrial enterprises have accelerated the decline and have been eliminated. Traditional industrial buildings are limited and abandoned, so the project of urban old industrial building reconstruction and reuse is gradually emerging, which is the law of modern urban development and renewal. It provides soil for the reconstruction and reuse of urban old industrial buildings.

Most of the waste industrial buildings in China are single-layer and multi-storey industrial buildings and some storage buildings built in the 1930s-1970s. At that time, the overall layout of industrial buildings was strict and orderly, and the symmetrical layout of the central axis was emphasized. Its structure is mostly brick wood mixed, brick concrete or reinforced concrete frame structure. The architectural form basically follows the simple and single style of modern building facade. The building materials are generally wood, brick and concrete, and the roof form is flat roof or two slope roof. Due to the high quality of construction at that time, most of these buildings have good structure, strong durability, and the internal space is open, and the simple exterior facade of modern architectural modeling also provides greater flexibility for the transformation of buildings. 

Therefore, with the emphasis on building renovation and the increase of preferential policies of the government for renovation projects, the transformation and reuse of old industrial buildings has a gradually increasing trend.

Old factory buildings with historical value and significance

The old industrial buildings which play an important symbolic role or special significance in China's industrialization process should be specially protected for their historical value, and be used for protection from the perspective of understanding urban culture. On the basis of meeting the functional requirements after transformation, the original characteristics should be kept as far as possible. For example, Beijing's 798 Factory Art District, E9 District Innovation workshop, etc.

Old factory buildings with high use value

For the general old industrial buildings, they have not much historical value, and their transformation should be considered from the perspective of practicality and ease of use, and their industrial characteristics need not be specially preserved. Such as a series of Express Hotel renovation projects.

The transformation and utilization of old industrial buildings should be treated differently. With smart city industry as the guide and cultural creativity as the characteristics. It has a strong memory of the times, through planning and design, transformed into a modern, vibrant urban community, attracting many fans.