Most of our listed buildings are already well used and maintained in good repair by their owners, but some are empty or neglected.
Mae’r rhan fwyaf o’n hadeiladau rhestredig eisoes yn cael eu defnyddio’n briodol a’u cadw mewn cyflwr da gan eu perchnogion, ond mae rhai’n wag neu’n cael eu hesgeuluso.