The appellant, the lessor and owner of Erf 83, Flagstaff, concluded a notarial lease with the first respondent on 29 June 2004 for a fixed term ending on 31 May 2014. The lease granted the lessee an option to renew for two further periods of nine years and eleven months, provided the option was exercised timeously and the rental for the renewal period was agreed, failing which it would be determined by a third party appointed by the President of the Cape of Good Hope Estate Agents Board. The lessee gave written notice timeously exercising the option to renew but did not agree with the lessor on the rental, nor did it invoke the third-party determination mechanism before expiry of the lease. Despite this, the lessee remained in occupation after 31 May 2014 and paid increased rentals unilaterally. Negotiations failed, and the lessor contended that the lease expired by effluxion of time and that the continued occupation was on a month-to-month basis, which he terminated.