We have installed wallpaper behind glass splash backs on many occasions without any problems, the glass usually being attached by a thin beading of clear silicon applied around the inside perimeter of he glass, then fitted the day after the wallpaper install. MOST importantly the INSIDE of the glass be kept perfectly clean on install as even fingerprints will stand out

There are some beautiful patterns around, even from the seventies. As long as you dont clad the entire walls and ceiling in wood panels i think the 70s has some parts worth retaining.

You're welcome! Roof/city scapes are like landscapes, but the views are of roofs not plants. Google roofscapes images and you'll get the idea : ) And if you're not bothered by the roof next door then I'm not bothered by the roof next door! I'm sad to say though that your metal outside stairs idea will likely not get approval from your local Council. I say that approval is unlikely because that roof next door seems very close, so I imagine the setback of your house (and theirs) is likely as close as Council will let you get. In other words, no building of any structure such as stairs would be allowed in the space that's there now. But never say never...give their planning department a call or submit an enquiry online and just run the plan past them. Maybe instead of stairs you actually mean a Juliet balcony? (google it!) Even that plus the type of window it's attached to is subject to Council approval so again, you would need to contact them. Plants on a Juliet balcony would indeed be very charming but I'm not sure how realistic this option is. So all that being said, I'm still going for my roofscape/cityscape option to better incorporate next door's roof. Roofscapes can include trees too you know!

One can express their thoughts and ideas using wallpaper much more than bland paints and the final outcome can be a thing of beauty such as in the pictures posted. The internet, especially Pinterest, is full of images that will blow you away and there are innumerable sites that supply the many variations available. at reasonable cost.