In this scenario, it appears that works have been carried out in respect of a part of the property not included within the demise without the consent of the landlord, by the removal of an internal wall. Such action amounts to a trespass to the retained property and is actionable in damages or an injunction to restore the internal wall. Assuming that the landlord is content that the internal wall has been removed, and there are no issues relating to building regulations or planning permission, the landlord could seek to regularise the position. It is not clear what the purpose of removing the internal wall is, as the extent of the demise has not been altered, but it could be, for example,