By James R.G. Cook ( November 18, 2025, 3:51 PM EST) -- The purchase of a pre-construction townhouse or other home often involves a written agreement of purchase and sale (APS) that is signed years before the completion of construction and occupancy of the property. Buyers may be surprised if the developer imposes additional charges at the time of closing relating to changes to materials and supplies or other expenses that have arisen during the course of construction. Whether such charges are permitted generally depends upon the specific wording in the APS, as illustrated by the Ontario Superior Court of Justice decision in Taheripouresfahani v. Dormer Bond Inc. (c.o.b. Dormer Homes), 2025 ONSC 5833....