How can I brighten up a large dark brown wall which isn't mine?

Petra Gillis
by Petra Gillis

I'm living on the ground floor of a flat and I'm looking at a high brown wall that is covered in some kind of slates, which I don't like. I covered it with 'heather' which came down during a storm. Meanwhile I found out that I'm not supposed to touch the wall with heather or bamboo or even paint it because it's a common wall and need permission etc. This could end up in a costly business as my neighbours would like cedar which is very expensive here.

Any ideas?

thank you very much in advance and keep up the networking :-)

All the best,

Petra

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