If you are playing the DLCs ( Episodes from Liberty City ), safehouses are also unlocked through story progression:
Note: This house eventually burns down and becomes inaccessible after the mission "Roman's Sorrow". how to buy a house in gta 4
: Unlocked after completing either "Smackdown" or "A Long Way to Fall" . Expansion Pack Safehouses If you are playing the DLCs ( Episodes
In , you cannot actually buy houses or properties like you can in GTA: San Andreas or GTA V . Instead, you unlock safehouses for free by progressing through the main story missions. How to Unlock All Safehouses how to buy a house in gta 4