Here are a few ways to create a wallpaper accent wall in a rental property without damaging the walls:

Use removable wallpaper that can be easily applied and removed without causing any damage to the walls.Opt for peel-and-stick adhesive wallpaper that can be removed without leaving any residue or damaging the walls.If using traditional wallpaper, consider using a wallpaper primer to create a protective layer between the wallpaper and the wall, which can make it easier to remove the wallpaper without causing any damage.Remember to follow the manufacturer's instructions for proper application and removal to avoid causing any damage to the walls.