What is hybrid flooring? If you are installing flooring throughout I believe you will have to ensure you meet insulation requirements to prevent noise transmission.
In terms of the works – a lot will depend on whether it affects common property – for example if you are renovating the kitchen you may be changing pipes or electrics that are common property. If that is the case then you will need a by-law. It is not a good idea to draft a by-law yourself.
Perhaps you should ask the strata manager why a by-law is required.