Simply filling in the company house forms and resigning? You do not need their permission.A director should submit a written resignation letter that notes the effective date of their departure. Directors are under no obligation to give prior notice of their resignation, whether such be in their own best interests or that of the company. To resign as a director at Companies House you can use the TM01 form. The quickest way is to use the online service to update your information. Resignation of Registered Agent (PDF, 54.2KB).