Property price

[Pedro Lopez]

Hi everyone!!
I need some help with an issue on evaluating the price of a property that I'm trying to put under contract. It's a vacant lot of roughly 1000 sf in a highly populated area of my city and the owner has been trying to sell for a while without results The asking price is around $ 435, but I did some research and all online comparison sites seem to be way off from each other( Eppraisal $175 ,Zillow $250 ,Cyberhomes $600) The lot is sorrounded by multifamily ,SFR , and some commercial units.How do I know what to offer in this case? Thanks in advance!!!