During the period 2007 to 2014, the appellant (Mandizvidza) leased his house to the respondent (Mangenje) through a written lease agreement. During the lease period, the respondent replaced a mono pump on the borehole with a submersible pump and replaced a crastermatic pump on the swimming pool with an ordinary pump. These changes were made in contravention of clause 8 of the lease agreement which required prior written consent of the appellant. The respondent did not restore the fixtures to their original position when he vacated the premises on 30 June 2014. In 2014, the appellant sued the respondent in Case No. 23625/14 for repair costs to the borehole pump and was awarded $50 for installation costs. In 2016, the appellant instituted fresh proceedings (Case No. 5770/16) claiming the cost of restoring the mono pump to the borehole and the crastermatic pump to the swimming pool. The respondent raised special pleas of res judicata regarding the borehole claim and prescription regarding both claims. The magistrate upheld both special pleas.
The appeal succeeded with costs. The judgment of the magistrate was set aside and substituted with an order dismissing the special pleas of res judicata and prescription with costs.
The binding legal principles established are: (1) For res judicata to succeed, the two actions must not only involve the same parties and subject matter, but must also be founded on the same cause of action; a claim for repair costs and a claim for restoration/replacement costs constitute distinct causes of action even if they relate to the same property. (2) Where a lease agreement provides that a lessee must reinstate fixtures and fittings removed or disconnected during the lease 'at the expiration of the lease', the cause of action for failure to restore only arises upon termination of the lease, not when the unauthorized alterations were made. (3) For purposes of prescription, the cause of action in such cases begins to run from the date of termination of the lease, regardless of when the lessor acquired knowledge of the unauthorized alterations during the currency of the lease. (4) A party who breaches a contractual condition cannot rely on their own breach to escape liability under the same clause.
The court noted that one of the grounds of appeal was abandoned at the hearing (the second ground). The court also commented that the grounds of appeal were unusually couched with preambles of evidence meant to demonstrate the alleged misdirection by the magistrate, but found this not to be fatal to the appeal. The court declined to address submissions on the doctrine of peremption, noting that the magistrate had not made any decision on this doctrine and no appeal lay against any finding on it. The court observed that even though the defence of res judicata failed, this did not preclude the respondent from raising any other valid defence to the claim. The court expressed dissatisfaction with the magistrate's reasoning that the appellant 'should have been able to discover the anomaly before the prescription threshold of 2013', noting that the issue is not what one ought to know but whether there was evidence proving actual knowledge. The court also indicated that the question of whether viva voce evidence should have been called was of no consequence to the appeal.
This case provides important guidance on the application of res judicata and prescription in the context of lease agreements in Zimbabwean law. It clarifies that different remedies arising from the same factual situation may constitute distinct causes of action, preventing the plea of res judicata. More significantly, it establishes that in lease agreements containing restoration clauses, the cause of action for failure to restore property arises at the termination of the lease, not when the unauthorized alterations were made or discovered. This has important implications for determining when prescription begins to run in landlord-tenant disputes. The judgment also confirms that a party cannot benefit from their own breach of contract by arguing that their unauthorized actions preclude the other party from enforcing restoration provisions.