Urban renewal is a necessary and planned transformation activity for areas in the city that are not suitable for modern urban social life. 1In August, 958, the first seminar on urban renewal was held in the Netherlands, which expounded that people living in cities have different expectations and dissatisfaction with their buildings, surrounding environment or life activities such as tourism, shopping and entertainment.
Repair and transform the house where you live, and improve the environment such as streets, parks, green spaces, and unhealthy communities. It is required to implement them as soon as possible to form a comfortable living environment and a beautiful city appearance. Urban construction activities including all these contents are urban renewal. After the Second World War, the population and industry in the central areas of some big cities in western countries showed a trend of migration to the suburbs.
The original central area began to "decline"-tax revenue fell, houses and facilities were in disrepair, jobs were reduced, the economy was depressed, and social security and living environment tended to deteriorate. Faced with this holistic urban problem, many western countries launched the urban renewal movement.