Building safety approval currently costs $345.28- $1364.48 in Calgary, depending on the size of the addition. The lower fees apply to an addition of 400 square feet or less. Planning approval currently costs $192 – $621. Development completion inspections are charged at $163. The relevant permits and inspections are quite easy to arrange. We will help you obtain what you need and advise you on what will pass and what could be problematic for permits, based on prior experience.