me me - good suggestion on the fixed panel at bottom of windows. will definitely take note. Thanks.

bigreader - you just described exactly what was suggested however the glass balustrade will be inside rather than out. Guessing it's the best option and approach. But wonder how it would look like if the fixed glass balustrade is outside the window. Interesting and will take note. Thank you. I just can't find similar designs to compare or get ideas from.

as suggested, glass Juliet style balcony

Could use louvre windows.... even potentially from floor level to head height....

Check with the manufacturer of louvre glazing sizes and opening as they do vary.

Thanks siiuskey! it does look like an option but it just wouldn't work with the design we have.

Thank you Sophie c and spmm, great suggestions! SPMM The current sliding doors we have put a restrict opening and considered that approach too. So, thank you. If that would be acceptable to council then that would be our best bet. The whole window will be taken down to allow for the new windows which will be heavy and will need better support. So yes, the shelf will be removed.

I have also explored this type of window opening perhaps. Again restrictive opening. The husband is not that keen on the idea.

This is the sketched house. So would like a seamless and minimal look as it will be all windows on the front second level of the house.

If you are keeping existing windows then the restricted opening on the sliding windows would fix the problem at a very small cost, we had to do this with a couple of windows overlooking our pool

. If you are looking to replace the windows as already suggested some louver windows at the sides of the sun room with fixed panels else where.

I agree with siriusky that the restricted opening lock is an option for compliance. Alternatively awning windows are great. We have just had all apartment windows changed to awning with optional restricted kiddie locks. What about having some fixed and others awning perhaps?

I see you have an awning window photo above!

Thanks siriuskey! Glad that would be acceptable to council. We prefer not to have louvres on the front windows, but we do have on the sides. We are replacing all windows as part of our renovation.

Helenscolour, thank you, yes, I have considered that and will note. So that's what they are called, awning window! :)

Helenscolour, would you have any idea how big they would allow an awning window? Tempted to do a full section of awning type so it looks like a picture window too when closed off. Thoughts?