Critique my floor plan

[Sassybynature]

Can anyone help with advice on my floor plan. we hope to build a side extension to give us more space to create a bigger bathroom and an ensuite.
However my plans leave a room in the middle with no window!
The stud wall between the front bedroom and hallway can easily be removed to make a bigger master bedroom.
Any ideas how to make the space more useable.

Would you be able to fill the whole gap in behind the above garage room?

Is there a reason why you can't put a window on the right hand side wall of the current windowless room? I'm not great at reading plans so there may be an obvious reason for this! What are you planning on using that room for? What are the dimensions? What is the room above the garage used for? Might help with some suggestions.

We are currently toying with the idea of building the double side extension from the garage to the end of the kitchen (to fill in the gap) but still leave a path for entry to the garage. This gives us extra space upstairs, but the layout means the window in the middle bedroom looks directly to next doors wall, unless it is a frosted window, in which case that becomes a bathroom. I would rather have the bathroom at the rear. The two pics show the current and my rather novice plan drawings.
The ensuite measures 1.20x1.70 is this enough space?
The room above the garage is currently a bedroom.

If I was spending money extending I'd want to create another room upstairs rather than just a larger bathroom and an ensuite - knocking the toilet and bathroom into one will make a difference for much less cost. Moving the bathroom will add extra cost too. Why do you want the bathroom to be at the back of the house?

Have any other houses on the street extended? Have a look online at the plans and see what they done in terms of layout.

Wow fudge you may have a point about keeping the bedroom at the rear and just knock down the wall between the toilet and bathroom. It's a four bedroom house and would like aleast two showers one being an ensuite. Just don't know wher to put it.

I would keep the bedrooms where they currently are and knock through the wall between the current toilet and bathroom to make it into a large family bathroom. I assume the bedroom on the top left of the diagram is the master - do you have enough room to move the door into that bedroom so that the new door is opposite the current toilet door and then fit ensuite into the bottom right hand corner of that bedroom (if that makes sense)?

You seem to be losing a bedroom in your plan. Is there any reason you can’t leave the bathroom where it is (assume this will be easier plumbing wise?) and have what you’ve currently marked as bathroom as the 4th bedroom?

Have you seen those sun tunnels? A great way to bring in natural light.

You can also add ventilation.

www.google.com/search?q=light+tunnel&tbm=shop&source=lnms&sa=X&ved=0ahUKEwj37vTIkMzfAhV8WhUIHb1WDzMQ_AUICigB&biw=1360&bih=626&dpr=1