In almost all renovation cases, a building permit or other type of approval will be required. Of course, the exact procedure will vary depending on your governing authority. Things like replacing or knocking down walls or other cosmetic changes will likely need a permit. Here are some types of projects that will require a permit: - Home additions like bedrooms, bathrooms, living rooms, etc. - Residential add-ons like garages, decks, fireplaces, water heaters, etc. - Renovations like garage and basement conversions, re-roofing, and kitchen makeovers, etc. - HVAC (heating, ventilation, air-conditioning) systems - Electrical and plumbing systems