you pay different stamp duties, you only pay stamp on the land on a new build.
Easements are drains and access areas you cannot build on, look for these on the plans.
Flat land, anything with a remote slope is going to cost, anything with rock in it is gonna cost heaps..... and this is only footing level.
Once you found your house, and if you can get a plot of land to fit it on even remotely in the area you want ( guys down south will find it easier) then once you have paid all your extras to have it built and completed, add around another 45% to have the whole thing finished OUTSIDE how you want it. I always thought this last comment was pie in the sky..... drive round new build estate and spot the guys who didn't factor the paving in!!!!
The show homes are wonderfull, parafield gardens has around 20+ homes to look at. The pomme from Sterling wouldn't even sell to us....... come back in 6 months when your not so green. The best advise i have taken since landing i might add. Take a good look at the area your buying land in, and the industry in the surrounding area. add all the costs, you will struggle to find land under 200K for a small plot unless you want to travel.
Just my findings.