A loading percentage between 20% and 30% is generally considered reasonable for most residential projects. The loading percentage is the difference between the carpet area and the super built-up area, representing the share of common spaces such as lifts, corridors, staircases, lobbies, clubhouses and other shared amenities. Projects with a loading of 20% to 25% are usually considered https://www.laxmigroup.co/articles/carpet-area-vs-built-up-vs-super-built-up-area-key-differences-explained/