A guarantee agreement is a contract where a third party, such as a director, shareholder, or parent company, agrees to fulfil the obligations of a borrower if they default on their loan or contractual duties. In UK property development finance, guarantees are often required to enhance lender security, particularly in SPV structures or where the developer has limited trading history. These agreements can be limited or unlimited in scope and may cover repayment obligations, performance under build contracts, or financial covenants linked to funding arrangements.
In practice, a guarantee agreement forms part of the wider framework of a Contractual Agreement, giving lenders an additional route of recovery beyond the borrowing entity itself. This is particularly relevant where development funding is advanced to an SPV with limited assets outside the project. Guarantees are often reviewed alongside a Letter of Undertaking, although the two serve different functions, with guarantees creating a direct obligation to meet specified liabilities upon default. Within development finance transactions, guarantee agreements are frequently required for facilities such as an Acquisition Bridge, where lenders seek additional comfort during higher-risk acquisition and early-stage project phases.
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