Hi. If you have an existing drain via your shower, this can be converted to take care of a bath shower combination, even if you also need it to be a wet floor drain. A bath waste is normally a 40mm pipe, so if your existing pipe is a 32, you might need to do some conversion

@macymacmaples Its really old one (may be 40yo) and they did reno the tiles but may not change the fittings. I can see some left over tiles kept under house. I olden house always has bathtub and the last owner may took out the bathtub and put the shower for space. Lets make it easy, i dont want many plumber work. What will u suggest me? I do really appreciate ur comment. If possible pls put bathtub for kids purpose, if not then i will keep the shower :).

Alex..your shower of 1300mm won't give you enough room to walk out if it's a walk in shower...the screen really need to be around 1100mm so it doesn't splash everywhere. Opening the external door outwards is okie if you've got some shelter from the elements..our entry door open out and is under a carport/deck. As per oklouise drawings with 2100mm 600mm washer dryer 900mm shower leaves 600mm for WC which leaves you 100mm either side of the WC. It's doable though your shower door will need to swing out thus not sure if you can fit the vanity across from the shower being only 1800mm wide. unless your internal access is a sliding door.. then you can fit it where the washer dryer is. you'd still need an external access opening outwards as doors are 800-900mm and if you open in you'd bump into your shower door opening out..

Hi RE your relocation options, the plumbing is probably going to dictate what your design options really are. Apartment renovations are quite a bit different to normal reno works in that there are often a lot more restrictions as to what you can do. For example, in older buildings, the drain for the bath is often a smaller diameter pipe than the shower as it doesn't need the flow rate. This means that moving the shower to the bath results in long high pressure showers filling up the floor (so you definitely need a hob) because of poor drainage, particularly if you don't keep hair out of the drain. As the floor drain plumbing is often situated either within the slab or penetrates into the ceiling space below, it is not able to be changed without major works and cooperation of others. The water supply and the waste usually go back to a plumbing stack so your options also depend on the proximity to that. Many things can however be done, but the overall plan of the apartment needs to be looked at re stack/access to pipes/check pipe diameters. With a bit of creative re-working we have installed additional toilets and shown other residents some of the possibilities in the apartments we have done but every apartment is different. My tip would be to do some research within your complex as to what has been done by other owners and speak to them about the issues they had to overcome. If you don't know of any you could easily do a web search for your street address and you will see previous advertisements for apartments for sale along with (usually) pics. You could then approach them and ask how it went. It mightt save you some $$$ and time. Cheers