Bathrooms are difficult. I can relate to all you are going through! Your are very lucky to have the window. and putting the toilet behind a solid wall will most likely take away your light source. Sure you have thought about the alternatives: - Similarly to an idea - Lampert Dias Architects Inc. put forward . . . What about a frosted glass wall shielding the toilet from the view as you open the door? Completely frosted or glass with a band (e.g. 42") of sandblast through the lower area, even with a clear area the bottom few inches - to get max light. Or a semi solid wall, solid on the bottom half and frosted glass on the top area or wooden vertical slates or plantation shutters on the top half. (though this may look too heavy keep it simple, keep it light - this is what I like about the pic you posted) Unless you are able to make the wall quite long you may still risk the chance of still being able to see the toilet when you open the door - the ultimate test is what you see when you open the door. Putting your shower where the toilet is now is a good idea, then you can create a wall of glass, even frosted glass, you retain the light and shower in a beautiful space (like the pic you posted) - But is there an alternative place for the toilet? Hopefully you can place the toilet behind the door or similarly out of the way. Lampert Dias Architects Inc. idea of the french doors opening onto the garden from your shower is fantastic - we are hoping to do this in another bathroom which will contain a bath. But your situation may not allow this. Also, and this may not apply in your case, some people may argue the negative of your ideas . . e.g. some will say having the shower where you now prepose (in front of the window) risks see a naked body when you open the bathroom door but that's got to be preferable to an intrusion on ones privacy. (Sure Houzz has done a piece on this exact subject) - hey that's their opinion, all you can do is work out the best alternative for you and your situation and stick to it. Hmmm . . . We have been think about the layout of the interior, as you original discussion is all about water falling on window frames, but what of the view from the outside of the window? Is the window just a small one usually found next to or behind a toilet? If privacy is an issue Lampert Dias Architects Inc. sandblasted idea is a good one or a textured glass. Think it through, take your time even though you are keen to get it done. Patience may save you some money and get you what you want and need. G'luck with your project!

Well here we are yet again! I've not changed my opinion. The toilet-loo-privy- whatever one wants to call it needs a room of its own. Makes no sense to me having a "privacy wall" behind which to hide the pedestall if it is placed in a shower or full bathroom...the locked bathroom door is all that's needed. Seems to me that the concept of a separate toilet room or "Powder Room" (Why that title is anyone's guess)...was a sensible and accepted concept of homes in the 50's. It wasn't in need of any "polite" title, it was simply referred to as "The Toilet"..meaning basically -".where to freshen up". My idea of a perfectly sensible toilet is a separate little room housing the pedestal (toilet bowl) and a little basin with running water. Optional- a paper hand towel dispenser or one of those blowers...or a small towel rack and/or a nook for toilet paper...mabye to accomodate wet wipes in the absence of a basin or even where there's a basin....a nice comfy little Toilet Room..

my biggest problem with your plan is the bed placement. Facing straight through ensuite is a lousy idea. I'd do one of those wir which creates a back wall for your bed (wide enough for bed and bed side tables) and then walk through to ensuite. This reduces the likelihood of waking up every time one person has to use ensuite. Forgive my appalling drawing!

always best to plan the long term extension and then do the work in stages rather than make changes that may block future improvements but what is the width and length of the whole block and distance of the house from all four boundaries, can you drive into the backyard and is there an existing garage ...your site plan suggests extra space at the front that could potentially be used better but some photos and a Google Earth view of the roof would help and keep in mind your children will not be small for long and i would never have a free standing bath at the expense of a separate toilet there must be better options for the new bathroom but before changing the old bathroom you should consider the whole house