Sharing my experience. In Miami the tax is 1.12%. My heuristic is mortgage is 1/2, HOA + Property tax is 1/2. Don't know if that scales to your market but it

Sharing my experience. In Miami the tax is 1.12%. My heuristic is mortgage is 1/2, HOA + Property tax is 1/2. Don't know if that scales to your market but it seems to hold true here. I'm not sure how rent control works in your city/country. But in my experience, you buy in at a market rate and then the amount of increase is capped by the government. I've not heard of people renting an apartment below market rate (for the first month) unless its classified as "affordable housing" which carries statutory requirements for the landlord and the tenet.