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The Defective Premises Act 1972 fills an important gap in disrepair law. It makes landlords legally responsible for defects in property they own, even when those defects are in parts of the building the tenant doesn't occupy, such as the roof, communal stairwells, or the flat above yours.
The core duty (Section 4)
Section 4 of the Act says that a landlord who has a duty to maintain or repair a property also has a duty of care to:
- The tenant and everyone in the property
- Visitors to the property
- People next door or anyone affected by defects in the building
The duty applies whenever the landlord knows, or ought to know, about the defect. It covers defects the landlord could have fixed through reasonable inspection, not only ones they were told about directly.
What "defect" means
A defect is a condition of the premises that creates a risk of damage to persons or property. Courts have held this to cover:
- Structural failure (walls, ceilings, floors collapsing or cracking)
- Leaks from the roof or from flats above
- Defective communal areas (broken stairs, lifts, walkways)
- Disrepair to drains, pipes, or gutters that causes damage to the tenant's home
- Work done on the property that was carried out negligently (e.g. a previous repair that fails)
Why this matters for communal areas
In a block of flats, the landlord (council, housing association, or private freeholder) keeps control of the communal areas, roof, and structure. When these cause damage to a tenant's flat, Section 4 gives the tenant a direct claim for:
- Property damage (furniture, belongings, decoration soaked by a leaking roof)
- Personal injury (slip on a broken communal stair, ceiling collapse)
- Loss of enjoyment of the home
This runs in parallel with a Section 11 disrepair claim, which focuses on the landlord's duty to repair, while the Defective Premises Act focuses on the duty of care arising from the landlord's position as owner.
Leaseholders and communal areas
Leaseholders who own their flat but rent the building from a freeholder can use Section 4 when:
- The freeholder owns and is responsible for the structure and communal parts
- A defect in the structure or communal areas causes damage to the leasehold flat
For major works disputes, leaseholders also have the Section 20 consultation route (see our Section 20 guide).
Duty for building work
Section 1 of the Act imposes a separate duty on builders and developers (not just landlords) to ensure that any work done on a dwelling is done in a workmanlike manner and with proper materials. If your landlord carried out a previous repair that was done badly and the failure now causes you harm, Section 1 can apply.
Time limit
You normally have 6 years from the date the damage occurred to bring a claim under Section 4. For personal injury, the limitation period is 3 years from the date you first knew (or should have known) that the injury was caused by the defect.
How this works in practice
A typical Section 4 claim runs alongside a housing disrepair claim under Section 11 LTA 1985:
- Report the defect in writing to your landlord. Even though Section 4 does not require prior notice for its duty of care to arise, a written report strengthens your case.
- Document damage caused by the defect, photographs of water damage, spoiled belongings, structural failure.
- Send a Letter of Claim under the Pre-Action Protocol for Housing Disrepair Cases.
- Quantify your losses, damaged furniture, decoration, medical costs if injured.