With a terraced or semi-detached house, the building control body may also ask for sound insulation between the converted loft and the neighbours loft to be improved.
Yn achos tŷ teras neu dŷ pâr, gallai’r Corff Rheoli Adeiladu ofyn hefyd ichi wella’r system inswleiddio rhag sŵn rhwng yr atig a addaswyd ac atig eich cymdogion.