Whether the tent on the roof is illegal is generally judged according to the specific situation. Illegal buildings mainly include the following contents: 1, buildings built without application or approval and without obtaining construction land planning permit and construction project planning permit; 2, unauthorized changes in the construction project planning permit provisions of the construction of buildings; 3, without changing the nature of the use of buildings; 4. Set the temporary building into a permanent building without authorization.

legal ground

Article 40 of the Urban Planning Law of People's Republic of China (PRC), where buildings, structures, roads, pipelines and other projects are to be built in urban and town planning areas, the construction unit or individual shall apply to the competent department of urban and rural planning of the people's government of a city or county or the people's government of a province, autonomous region or municipality directly under the Central Government for a construction project planning permit.