[iFiras]

pawn Код:

#define MAX_HOUSES 3

You can change this to whatever you want anytime.

Use your variable to check the houses owned by the player:

pawn Код:

if(pHouses[playerid] > MAX_HOUSES) return SendClientMessage(playerid, -1, "You have the maximum amount of houses.");

Change the variable name to whatever you want, that's just an example.

The post above is correct, I felt like doing this in a different way.