Calculating Condominium Unit Floor Area Under Tarion Builder Bulletin 22

This guide explains the approved method for calculating saleable condominium unit floor area under Tarion Builder Bulletin 22. It outlines how total floor area is measured and how features such as demising walls, exterior walls, stairs, mechanical shafts, atriums, sunrooms and balconies are treated within the calculation. The document also covers the permitted 2% measurement tolerance, metric and imperial measurements, and the use of typical middle-floor units in high-rise developments. Required purchaser disclosures are included to clarify potential differences between stated floor area and actual usable space.