Not ruling out a tax grab/ inflated municipal operating costs, but if you own a detached place in the Lower Mainland, that place is definitely going to be appreciating in value (a lot) faster than other real estate in the city, such as condos or townhouses. (This is why the notion of a "property ladder" is sort of funny - you might build equity in your tiny condo, but it's probably not going to be enough to help you reach the next rung when you want more space.)

Anyhow, that greater rate of appreciation for detached houses likely means that, based on mill rate calculations, your share of the overall property tax burden is going to increase as well.