Under most commercial leases—and applicable building codes—the landlord is generally responsible for installing and maintaining fire protection, including smoke detector and sprinkler systems.
But commercial tenants are usually responsible for maintaining smoke and carbon monoxide detectors within their leased premises, including testing the devices regularly and changing the batteries when necessary. Commercial tenants also generally have a responsibility not to obstruct or hinder fire escape routes or to create or maintain fire hazards within the leased premises.
In California, landlords of commercial properties are typically responsible for the installation and maintenance of fire protection systems, such as smoke detectors and sprinkler systems, in accordance with commercial leases and building codes. However, commercial tenants have the duty to maintain smoke and carbon monoxide detectors within their specific leased areas. This includes regular testing and battery replacement. Tenants are also responsible for ensuring that fire escape routes are clear and unobstructed, and they must avoid creating or allowing fire hazards to persist on the premises. Compliance with these responsibilities is crucial for both safety and legal reasons, as failure to adhere to fire safety regulations can result in legal consequences and jeopardize the safety of the property and its occupants.