Just a building under construction or an art work?
This building is under construction and covered with grey nets. The nets can prevent the falling stuffs, like small pieces of material and some tools, go outside the site and people walking in a street injured.
This wrapping reminds me of art works of Christo and Jeanne-Claude.
They have wrapped a variety of stuffs, from the old building of parliament in Berlin to the Roman wall. They had changed just wrapping into an mean of art.