Whilst many people are aware that a certificate of lawfulness can be achieved if it can be shown, on the balance of probabilities, that a dwelling has been occupied for over 10 years in breach of an agricultural occupancy condition that is not the end of the matter.  Even if you are successful with the certificate application the planning condition remains in place and the period of immunity from enforcement against the condition could re-start.  It is therefore always important that a certificate application is followed up by an application to formally remove the condition, and this is exactly what RCC have just successfully done for our clients.