This security architecture employs a zoned, independent management approach for multi-story homes. Each floor is designated as a separate security zone, allowing for individual arming and disarming. Each zone is equipped with door/window sensors and infrared motion detectors; in the event of an alarm, the system quickly identifies the specific floor where the incident occurred. A central control unit aggregates the status of all zones and flags the affected area when an anomaly is detected. Environmental sensors are also integrated to monitor for fire or hazardous gas leaks on each floor. Video surveillance cameras are deployed by zone, enabling users to access footage for specific areas as needed. This solution is ideal for multi-story self-built homes or duplex-style residences; for instance, motion detection can be disabled on a floor currently in use by family members, while the remaining floors stay fully armed. This flexible, zone-based management prevents routine activity in one area from triggering a whole-house alarm.