All homes should be protected by smoke detectors. It is not as important whether a specific code requires it as much as it is singly best thing you can do to protect you and yours from the threat of fire.
In compliance with current code, smoke detectors should be installed in:
- Hallways leading to bedrooms
- Basements with sleeping rooms
- Ceilings more than 24" higher than connecting bedrooms or hallways leading to bedrooms
- Stairway landings leading to upper floor bedrooms