It all depend's on what offset wheels you get and also what profile the tyres are.
The perfect offset for corsas is et49.
I had 17's lowered 60mm on a 3-door corsa and it only scraped when I had 3 people in my car. Also I'm not sure what offset the wheels were.
I'm also not sure if there is any difference between the 5-door and 3-door fitments. Mark will know better than me and will probably post to let you know.
2 and 5 doors are basically the same make sure you get the right offset and right tyre's in most causes when ive lowered the 3 or 5 doors ive take the rear arches off and bonded them on as the wee bolts that hold them on can sometimes dig into the tyres when your loaded up or when going round corners causing damage to your tyres