How can I get an estimate on the value of a building in Lodz?

have an option to buy property - a whole building . in Lodz in ul Podrzeczno - how can I get an estimate on the value of the place?

how much should I estimate to fix a whole bldg.?

Errr...go to a valuer. Or do it yourself - workout how man flats you could fit there, at what rent and what occupancy.

This sounds łike a serious financial decision so honestly you would be better shelling out a few thousand zloty for a pro than relying on this forum