Commercial Tenancy Contracts: dotting the I’s and crossing the T’s
April 09, 2026
Commercial Tenancy Contracts: dotting the I’s and crossing the T’sApril 09, 2026 The Irish Supreme Court delivered its noteworthy decision in ACE Autobody Ltd v Motorpark Ltd, Brecol Limited and JDM Automotive Limited, on the 18 February 2026. The judgment serves as a caution to commercial tenants and landlords alike that occupation of a property, payment of rent, and operational commitments do not secure a tenancy, unless a formal written agreement is executed and completed. BackgroundACE Autobody Ltd (“ACE”) had entered into discussions with Motorpark Ltd (“Motorpark”) for the grant of a 10-year lease to ACE in relation to a portion of a commercial property for use as a motor body shop. ACE and Motorpark agreed a “Term Sheet” and instructed their solicitors to prepare and conclude a formal lease agreement. Importantly, the communications between the respective solicitors, in negotiating the proposed lease were marked “subject to lease” and no formal lease was ever agreed or signed. ACE took possession of possession of the property without the benefit of a concluded lease agreement. ACE expended significant monies in rebranding the property and on receipt of invoice for rent, ACE discharged those invoices. Within 18 months, vacant possession of the property was sought and it was asserted that ACE was mere licencee whereas ACE argued it had a 10 year lease. ACE issued proceedings arguing that it had been encouraged to take possession of the property on the representation that it would be granted a 10 year lease. In this respect, ACE sought a declaration that it was entitled to a lease on the basis of proprietary estoppel. The High CourtThe High Court dismissed ACE’s claim deciding there was no concluded agreement for a lease. It was accepted that certain terms had been agreed but importantly there was no overall concluded contract. The High Court noted that the solicitor’s correspondence made it clear that the parties did not regard themselves contractually bound. The Court of AppealThe Court of Appeal took a different view to the High Court, deciding that a binding agreement existed when the principals “shook hands” on key terms of the tenancy. The view of this court was that the material terms of the lease were agreed and that the use of the expression “subject to lease” had no impact on the agreement reached by the principals on those material terms. The Court of Appeal also placed reliance on the fact that ACE had gone into possession of the property and undertook expenditure on the property thereby part-performing the agreement for lease. The Supreme CourtThe Supreme Court overturned the decision of the Court of Appeal. The Court said that context was important to resolve the issues on appeal noting that the parties had access to legal advice, had significant experience of transactions and intended that negotiations would lead to a comprehensive written contract setting out their respective rights and obligations. The Supreme Court identified three main issues in the proceedings, as follows: 1. Formation of a ContractThe Supreme Court confirmed that a lease remained in negotiation while solicitors expressed communications to be “subject to lease” until a formal contract was agreed and executed. Taking that one step further, the Supreme Court noted that ACE’s own solicitor had said that no contract would come into existence until such time as the contract was in agreed form, executed, exchanged and a contractual deposit paid. The Court said that while the usual conveyancing practice in Ireland did not involve a requirement for the exchange of contract, it was made a requirement in this instance. The Supreme Court placed emphasis on parties agreeing all essential terms. In this scenario there had been no final agreement on the commencement date or as to whether ACE would execute a deed of renunciation in respect of its statutory renewal rights. 2. Part PerformanceThe Supreme Court ruled that in circumstances where there was no concluded agreement there could be no part performance. The doctrine of part performance could not come into play in this instance as ACE failed to satisfy the Court that there was an agreement in place. 3. Proprietary EstoppelThe Supreme Court considered the case law here and even more particularly in England and Wales where the issue of proprietary estoppel in a commercial context had been analysed in more detail. Proprietary estoppel arises where a party relies to their detriment on clear assurances regarding rights in property, in circumstances where it would be unconscionable for the party to later withdraw those the assurances. While there was evidence that ACE (i) relied on the assurances (which were described as vague) and (ii) incurred significant expenditure on the premises, the Court noted that ACE could not have reasonably believed it had a legally enforceable right, as no contract had been signed. The Supreme Court observed that both parties were experienced commercial operators that had legal advice available, were involved in the negotiation of a complex commercial transaction on the agreed understanding that neither party would be bound unless and until a written agreement for lease was executed. Lessons Learned
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