Any websites to look up past commercial property prices for free?
Hi, currently a student working on a real estate project. I was wondering if there are any websites where I can look for prices of commercial properties that are sold already for free? I can only find currently listing ones on google which doesn't help my analysis. Thanks for any help!

Edit: Thanks for the help guys, I also went to ask my prof, he said Canada has non disclosure, so I’d have to either contact a broker, find a recent appraisal or pay for the info myself. I’ll probably choose a different valuation method if I can’t get the info for free haha.
[{"id": "hl63gcy", "text": "You need access to costar. You should email them and request a free student account as a real estate student.", "replies": [{"id": "hl64ukq", "text": "Second this ^", "replies": [], "depth": 2}, {"id": "hl655mu", "text": "Got it, thanks, will email them", "replies": [], "depth": 2}], "depth": 1}, {"id": "hl6ezog", "text": "Tax assessors office.", "replies": [], "depth": 1}, {"id": "hl6hvkh", "text": "Any county parcel viewer can help you if you know the address. \n\nGoogle \"Your City Parcel Viewer\"\n\nEnter address, click on the parcel and look for the date last sold and the amount should be right there.", "replies": [{"id": "hl72of2", "text": "Not in non disclosure states.", "replies": [{"id": "hl94hi5", "text": "He\u2019s in Canada", "replies": [], "depth": 3}], "depth": 2}], "depth": 1}, {"id": "hl6oaiw", "text": "Free no.  Paid Costar pricy. Most appraisal companies stopped subscripting.   One source could be through title companies.", "replies": [], "depth": 1}]