Does anyone know of any design software a novice can use? I'm almost tempted to fire up the Sims lol. Trying to plan out a double side extension and workshop overhaul -- really want to visualise what the house would look like 'done'. May even pay someone to knock it up as a water colour
Try https://floorplanner.com/ it's free, simple, easy to learn and is what a lot of estate agents use to create 2D and 3D floor plans. As with most programs if you choose the pay option you can do a lot more. There are better options but they cost a lot more.