Not sure what the previous homeowner was thinking when he drilled this hole, but what would be the best material to patch it with?
As you can see in the picture, it's a purely aesthetic fix but I'm remodeling the room and I'm obsessed with details like this.
Best Answer
You could try vinyl plugs that can be found in hardware/home improvement stores. The plugs come in various diameters. If there isn't one for the hole's size, you may have to drill it larger to the size of the plug so that it will fit.
Also found this kit, may be this will be an alternative option.