Ok, so I'm fishing for some basic info here, I have no development exp, only renovation exp. Have looked at a 1020 m2 block in Logan with the existing house positioned at the front of the block allowing the rear to be cut off to make a separate lot, many others in the street have done the same. Can anyone give me a basic idea on the costs for getting the split done including getting services connected, driveway, drainage, surveying etc? Should I aim for a 20% return on a basic development like this? Existing house is a 3 bed 1 bath, asking $380k. New lot would be worth 200k approx (for a vacant lot) and the existing house would then be valued at around 320k after subdivision. Sale price of the new lot with a new 4/2/2 house might get 420k. Any profit there?