Documents submitted with the application should be relevant to the proposed works; for example, it is unlikely that you would need to submit floor plans for alterations to windows.
Dylai dogfennau a gyflwynir gyda'r cais fod yn berthnasol i'r gwaith arfaethedig; er enghraifft, mae'n annhebygol y bydd angen i chi gyflwyno cynlluniau llawr ar gyfer addasiadau i'r ffenestri.