Our bylaws say we are not permitted to drill into the common property walls. Rather than ‘telling the committee what you plan to do’ you probably should ensure that’s not too dramatic to get them off side and make simple application for committee approval, using the other lots as precedent, outlining your respect for the structural integrity of the place, list your works and the pro who will do it with insurance. If they say yes, all good. If they say no you might or might not come back for round 2, but I’d bring them in on it first.