Is it legal that the property is not allowed to install sunshade?

Before installing the canopy, you need to get the consent of your neighbors.

(1) The external wall of the building belongs to all households and belongs to the public * * * area. To install a canopy on the external wall, the consent of the nearby residents must be obtained.

(2) The installed stainless steel canopy may fall off after a long time, which may pose a safety hazard, and the noise generated by rain hitting the canopy may also affect the upstairs residents.