Order for possession upheld where deed of renunciation had been validly executed

Plaintiff port authority - defendant road haulage business - appeal by defendant - High Court ordered defendant to deliver up possession of premises comprising 0.821 hectares - it was the subject of an Indenture of Lease between plaintiff and defendant - High Court also dismissed plaintiff's counter claim for a declaration that it is entitled to a new tenancy in the premises - pursuant to Part II of the Landlord and Tenant (Amendment) Act 1980 (as amended) (“the 1980 Act”) - and for damages - High Court found plaintiff lawfully terminated the Lease by serving a break notice - central to appeal is validity and effect of that renunciation - renunciation contained errors such that certain words and phrases bore no relation to the premises - plaintiff cross appeals - from trial judge's rejection of its alternative claim to enforce certain clause of the Lease - cross appeal also considered whether plaintiff is estopped from asserting a right to a new tenancy having regard to the fact that it agreed to the clause - court sets out background - consideration High Court judgment - purported renunciation - defendant's appeal contains 59 grounds - “Chartbrook Principles” - court ultimately finds trial judge's assessment of evidence cannot be faulted - on the basis of his findings he was entitled to conclude - that properly construed the effect of the Renunciation was clear - court dismisses remaining issues - defendant's appeal is dismissed - order of High Court affirmed.