Sometimes the Local Planning Authority may grant Listed Building Consent, but impose conditions where they require extra information or more detail before work starts on the property.
Weithiau gallai'r Awdurdod Cynllunio Lleol roi Caniatâd Adeilad Rhestredig, ond gan atodi amodau lle bydd angen gwybodaeth ychwanegol arno neu ragor o fanylion cyn i'r gwaith ddechrau ar yr eiddo.