We have nearly finished similar our shower is installed where the broom cupboard was had to move the door into spare room to enable a cupboard for brooms. Big China sink looks like an oversized bathroom sink but still is practicable for laundry. Front loader washing machine under bench /vanity

My first rule for bathrooms is to make sure the toilet is not the first thing you see when you open the door. Move the toilet to where you currently have the shower, backing up against the wall with the door. It's also nice to have the toilet near a window! If you can, convert that door to a cavity sliding door to increase available room in the bathroom itself. A shower along the wall where you currently have the bath would have a number of benefits - it has a window, which is great for drying it out and preventing mould, it is long enough to have a towel rail at the end of it without towels getting wet and you wouldn't need to have a door on the shower (saving space again). I would suggest the shower rose go on the left end of the shower and the opening (in lieu of door) and towel rail at the right end. I would position a wall hung vanity unit on the left wall where you currently have the toilet. Good luck!

Hi Paul In apartments, the killer for layout changes are always drains, then water supply, then load bearing walls. Before you consider doing any changes to the layout, I would advise you to locate the drains (pics would be good) as they will likely restrict you. The drains are important for obvious reasons but also important is the fall (ie downward slope) of any drain you wish to install in a separate location. It means you have to take into account more height the further away from the existing drain you go. It is likely that your existing laundry trough/basin has a drain going down to the floor, and this is going to interfere with the proposed ensuite entry location. Ditto if it is going into the wall. The big one is the new shower. It will need to have a 50mm waste (drain) in the centre of where your washing machine now is.... and the question is where is it going to go.... I would suggest swapping the vanity and shower over to access the existing trough waste if it is large enough. In a lot of these older apartment buildings, the waste sizes are down at 38mm, which is not going to drain fast enough for a shower. If your existing waste is that size, you will need to have a hob to the shower as it will fill up, and you will also need to check health regs to see if it is allowed in your state. To get the drain for the new ensuite vanity and new laundrette sorted, I would punch through the new kitchen wall and run drainage along the wall behind the new cupboards and around to the existing kitchen sink waste. This will give you plenty of fall and a place to hide the pipes. For the new basin to the existing, you will need to see if you can get it around to the existing basin waste in the bathroom adjacent by running it around and under the bath. Cheers

In Australia we have rules and regulations regarding waterproofing wet areas. Did you know that you had posted your query on Houzz Australia? Best of luck, Dr Retro of Dr Retro House