All the forms and help guides listed here are also available from the Planning Portal website ​ ​​​​​​​​​​​External link opens in a new window ​.
Mae’r holl ffurflenni a chanllawiau a restrir yma hefyd ar gael ar wefan y Porth Cynllunio​​​​​​​​ ​ ​​​​​​​D​olen allanol yn agor mewn ffenest newydd ​.