Hello all,
I've already done the graph paper and pencil method, unfortunately (and maybe I should have clarified this in the original post), I need to be able to layer raster and shapefiles to create a comprehensible working plan. I also need to be able to have the capicity to add in plans for laying electrical cables and water lines as this will need to be submitted for planning permission etc and inspections. I do have a reasonable knowledge of ArcGIS but these are too broad for me to work with and I refuse to pay a license fee to use the software once. I'll check out Turbocad if I can find a free trial but I'm also looking at 'Smartdraw' and 'Sweet Home 3D' to rough them out and then layer them using a Photoshop type-like to create something feasible.
Thanks!