For residential, you could go to a number of sites to see a collection of recent transactions of comparable apartments to get a feel for price of a potential target. I usually go to centadata to scrape a list of recent transactions in the neighbourhood to ballpark a sale or purchase.
I was wondering if there was a similar website for commercial property where the actual transaction prices are recorded? I was trying to weigh wether investing or leasing commercial property would be most viable, but I don't have any frame of reference. Are any of you familiar of any websites or services that provide similar transaction data?