The difference between single family housing and multifamily housing comes down to unit count. A single family home has one dwelling unit on its own lot. Multifamily housing has two or more units,
Custom home cost per square foot in Ontario ranges from $300 to $650 for construction only in 2026, with Toronto and GTA builds reaching $750 or more at premium levels. Northern Ontario starts lower at $280 to $380.
Pre-construction planning Ontario is the process of determining every project detail—including budget, permits, design, and regulations—before breaking ground
