[Sergei]

The easiest way is to create an enum like:

pawn Code:

#define MAX_HOUSES somenumber

enum hInfo
{
  ID,
  Price,
  Float:X,
  //etc
}
new HouseInfo[MAX_HOUSES][hInfo];

You should have all that info saved somewhere (file, SQL, etc) if you want to have them more "dynamic". For those green icons use pickups.
You should take a look at GF, Carlito's, etc where you can get general idea of how to start, but then how cool you make it is a thing of your imagination