Would definitely help in mocking up plans!

Oh super helpful. I searched for Pool Houses but "Enclosed Pool Houses" have really filtered the designs I was looking for inspiration. Thanks! It's so important I find the right builder for this in my area. I've not had much luck in the past with contractors and really want a smooth build. Cheers!

I have tried floor planner but then had a go with Sweet Home 3D and loved it so much I ended up buying it. The difference is that with Sweet Home 3D you see the 3D render straight away on a split screen down the bottom. Very easy to use.

Try Sketchup, a version is available as a free trial download, and it is designed for beginners. https://www.sketchupaustralia.com.au/sketchup-free-trial/?gclid=Cj0KCQiA-c_iBRChARIsAGCOpB0ohpndTYGFgRORjRqn9bl5otiKxv0KE2YNanQJXWuq7rLVJZiaslcaAvBuEALw_wcB However like any software the results very much depend on the skills and experience of the user. Just because I know how to use Microsoft Word it doesn't mean I can write a best selling novel! The software won't teach you how to design, or what makes good design, or the best way to build, which is why people engage design professionals. Best of luck. Dr Retro of Dr Retro House Calls