Boundary agreements will be a hot topic for conveyancers and insurers, particularly if the case of White v Alder heads to the Supreme Court.  The 2025 Court of Appeal decision was a reminder that boundary demarcation agreements define the legal boundary and are not simply an understanding between neighbours. The Court of Appeal held that a boundary agreement can bind a future buyer, a decade later, despite the fact the buyer was unaware of the agreement.  Insurers will consider the scope of existing policies and the potential for new products to deal with the risk of unknown boundary agreements.