Bit late now to comment, I guess, but would like to share that we are contemplating the plans on a government website for a sustainable home. Have actually got to the point of getting prices to build. It is 3 bed and study but we have changed the front bed, making it larger for a separate media room. The study is large enough for a bedroom and we plan to install a wall bed with desk. Have changed the kitchen to incorporate a walk in pantry. Love the master bed suit which has a passage to the en suite which contains the only bath so could be used by anyone. Guests usually only shower and they are provided with a shower and toilet in their area. Works for us! The plan is free and changes are allowed.

Where it's always been I hope, just kidding. One thing you find on Houzz is the"Brief" is very brief so you don't have much to work with. With what was supplied and that the property was being "considered" for purchase, I wouldn't go any further. The current floor plan needed opening up which I did a rough layout for. the internal room could be kept if they wanted, just by using one of my favourite things, full height cavity doors/Barn Doors forming the corner of a room/rooms, no need for windows, could have an opening skylight if needed as per attached. If they purchase maybe the will look to extend, next chapter.

Thanks Siri.... having it drawn to scale certainly highlights the inefficiencies in my idea unless compromises/sacrifices are made. Your banquette dining might work in lieu of a normal dining table Siri? Either way, I think a walk in pantry in this house demonstrates that space will be a problem. But good for AJ to see that as they explore a range of options before potentially seeking out a pro :)

A slightly off-the-wall suggestion -- remove the wall on the 'right' of the lounge , so you incorporate the hallway into the lounge . Add a door between the entry and the lounge -- if your plan is accurate , there may have been one there at some stage ? This 'closes off' the front 2 bedrooms , they become what I call 'kids rooms' -- you can still entertain or even just watch TV when they have gone to bed . You also have a toilet for guests ( in fact , a whole bathroom to share ) , although it's not ideal for the 3 existing bedrooms , but workable , unless you are a big entertainer . This may not be possible , but in my head I'd then remove the wall between the lounge and dining ( reading your replies , this may be load bearing , but just an idea ) . So you then have a large kitchen/dining/lounge/family -- sort of 4 in one . Maybe even move the 'middle' wall along the kitchen and dining to the right by 1.5 metres ? And of course , move the laundry to the rear porch area , and what do you have ? Yes , a new Master , with the toilet already there , add a bath/shower/basin . No addition needed , but I certainly accept it has a few compromises and assumptions , and may not be possible , but might get your thoughts moving outside the obvious ?