The danger of contributing to the cost of purchase of a house, without a formal declaration setting out what proportions are owned by the joint owners, was illustrated in a recent Court of Appeal case Sandhu v Sandhu.  Without a written declaration, the co-owners (or their families, when one of them dies) could later find themselves embroiled in an expensive dispute, resulting in an outcome which does not necessarily reflect their original intentions. The Court has a broad discretion to look at all the circumstances, not only the financial contributions.