My project is the renovation of factory building. And studing how old buildings can be revitalized and interact with their surroundings when facing new needs. The project located in an abandoned factory area (AB wilh. Becker),is an oil factory,  And The factory located in lovehome, stockholm, Sweden.  Next to Liljeholmen Bay, with great natural scenery.My proposal is to remove the polluted parts and use these removed parts and the space on the first and second floors to interact with the two surrounding squares. The correspondence between these two squares divides the first and second floors of the building diagonally into two parts. The part facing the square is used as a public space, another part is used as a residential area. The upper part of the building is used as a residential part, and this main part facade is retained, and two floors are extension to this building, which is just the load that the structure can bear.