Does size matter

My question relates to a by-law for a 3 bed apartment we are buying off the plan. It states that pets are allowed (specifically dogs up to 10kg). We have a 25kg Labrador who is house trained, doesn’t bark and is generally afraid of her own shadow. Do I ignore the by-law and just move in with my dog or do I do the right thing and apply for an exemption?. In which case, given the OC and EC don’t exist yet, how do I go about it.

I don’t want to get anyone offside, but nor do I want to give up my companion.

This is my first post so please forgive me if this is the wrong forum or format.

Thanks