The problem with Bye Laws in Spain at least is that they are effectively written in stone.
To change them takes 100% agreement within the community and to police them properly is almost impossible.
Court actions have been commenced against illegal pergolas etc. but as Pommers says this takes forever and could be costly so owners who wish to flout the law, do so.
Sail types shades were put in place in a number of communities and at the last phase 2 AGM it was decided it was not cost effective to go to Court.to ask for them to be removed.
What is apparent is, rather than attempting to change bye laws, each and every suggested idea should be put to Housing and the President or Committee of a Community, who will hopefully be sympathetic to new ideas, whereby common sense may hopefully prevail, however it must be remembered that if you allow certain changes then someone else will always want to bend the rules a little further, so some give and take on both sides is needed along with approval of other owners at AGMs or EGMs.
At present the Bye Laws are the same for each community but there is no consensus of agreement about what alterations may be permissable, time for the Entidad to work with the Communities.
If you have a proposal, take it to Marisol and to your President for consideration, a number of owners of ground floors especially on the ends have asked what could be done to alleviate the winds and draughts, so perhaps it is time for a sensible conversation that everyone can be happy with.
It seems that currently glass curtains would be acceptable but blinds requiring frames are not, perhaps better suggestions exist.