Forcing appreciation to a property

[Johnny Beautelus]

Good evening everyone, I'm in a dilemma, where I purchase a property in Kalamazoo, MI. Long story short I put too much trust into a realtor who I thought I can trust but it turns out I was wrong, now that property is being condemned. I'm trying to figure out how to force appreciation on the property. The property is only 650 ft square foot and has 1 bed, 1 bathroom. But is zoned to be a two-family home aka duplex. The goal was to renovate the property into a duplex and increase the square footage to around 1200-1500 square feet and add 4bed/2 bath on each side of the unit. But for some reason, I cannot find any property that I can compare it to. How can I force appreciation of the duplex and what will the appraiser look for if they cannot find anything to compare the property? Need help, please