Welcome to the Bunnings Workshop community. It's fabulous to have you join us, and thank you for sharing your question about your bathroom and laundry renovation.
I suggest having a look at these guides - How to plan a bathroom renovation and How to plan a laundry renovation by @Adam_W. These guides will show you the things you'll need to consider when planning your bathroom and laundry makeover. To give us a better idea of your space, would it be possible for you to post a few photos of the area and a sketch of the floor plan along with its measurements. This will allow our members to assess the condition of the rooms. We can then make recommendations on the best possible layout.