What duty is owed by a landlord under the Defective Premises Act 1972 (DPA 1972)? This Practice Note covers the landlord’s duty, when it applies, duty to third parties and trespassers, the need for disrepair, whether knowledge or notification of the defect is necessary and the position when works are carried out during the tenancy. For guidance in respect of the duties under DPA 1972, ss 1(1) and 2A (introduced by section 134 of the Building Safety Act 2022), for a person who takes on work for or in connection with the provision of a dwelling, or other work in relation to a dwelling, and how those duties are applied, and how those duties may be relevant in the context of fire safety defects, see Practice Notes: Defective Premises Act—work in relation to dwellings and Fire safety defect claims for construction lawyers. A landlord's liability to a tenant for the state and condition of premises is generally determined by the terms of the tenancy. However, under DPA 1972, where the lease imposes repairing obligations