My understanding is their is no exception of privacy on the common areas (think of street cameras of which their are millions). If the camera was aimed at a private yard on the lot, or a window within the private yard you might have problems. Not to sure about CCTV aimed at a common swimming pool within the strata (quite a lot have security cameras in this area anyway).
CCTV aimed at a swimming pool within the lot would def be clear breech in my opinion.