NOTE Nº 0621 · REV B

Limitation Periods for Building Defect Claims UK

How long you have to claim for building defects: the 6 and 12-year contract limits, the Latent Damage Act, the DPA's 15/30 years, and a decision table.

By The Renovation Notes Team · 5 min read · Published 25 August 2026 · updated within the last month · Sources checked 30 September 2026

Construction worker aligning bricks on site in Hải Phòng, Vietnam, illustrating craftsmanship and dedication.

In short

Building claims run out: six years from breach for ordinary contracts, twelve for deeds, six from damage in negligence (or three from discovery under the Latent Damage Act, capped at 15), and 15 or 30 years for Defective Premises Act habitability claims. Which clock applies, and when it started, decides more building cases than the merits do, so date the defect early and take advice before assuming you're out of time.

Every building claim carries an invisible expiry date, and defects, inconveniently, love to surface late. The crack appears in year five; the flat roof fails in year eight; the misconnected drain announces itself in year eleven. Whether you can still do anything about it depends on which limitation clock governs, and when it started ticking. This is the map.

The clocks

Contract, 6 years (Limitation Act 1980) from the breach: normally when the defective work was done, at latest around practical completion.¹ Not from when you noticed. A defect surfacing in year seven is out of time in contract even though you couldn’t have known, the harshness the other clocks below exist to soften.

Deeds, 12 years. Contracts executed as a deed get double.² Few domestic building contracts are executed as deeds, since most are simply signed, but architect appointments and some warranties can be, so check the signature block for “executed as a deed”.

Negligence, 6 years from damage, plus the Latent Damage Act. Claims in negligence run six years from when damage occurs (not when work was done).³ Where damage stays hidden, the Latent Damage Act 1986 adds 3 years from the date you knew, or reasonably could have known, the material facts.⁴ All of it capped by a 15-year longstop from the negligent act.⁵ Negligence has its own doctrinal limits in defects cases, the contract vs negligence guide covers when it’s actually available.

Defective Premises Act, 15 / 30 years. For work connected with providing a dwelling that leaves it unfit for habitation: 15 years (work completed after 28 June 2022), 30 years retrospectively for earlier work, the Building Safety Act’s dramatic 2022 extension.⁶ Since 28 June 2022 a second duty, in section 2A of the Act, also covers work done in the course of a business on an existing home, such as an extension or refurbishment, but only for work completed after that date.⁷ It carries the same 15-year limit.⁶

The odd ones: fraud or deliberate concealment postpones the start until you discover it, or could with reasonable diligence have discovered it (the builder who knowingly buried a defect can’t hide behind the clock they ran out).⁸ Claims under guarantees and insurance-backed warranties follow the policy’s own terms.

The quick table

Route	Clock	Starts	Longstop
Contract	6 yrs	Breach (work done)	-
Deed	12 yrs	Breach	-
Negligence	6 yrs	Damage occurs	15 yrs from act
Latent Damage Act	3 yrs	Knowledge	15 yrs from act
DPA 1972	15 yrs	Completion	30 yrs (pre-2022 work)
DPA s.2A (work on existing homes)	15 yrs	Work finished	Post-June 2022 work only

What this means in practice

Within six years of the work: straightforward, contract (or the Consumer Rights Act) is your route; proceed via the normal escalation.

Years six to fifteen: an ordinary contract claim is gone (a deed runs to twelve years); the question becomes negligence-with-latent-damage (three years from discovery, so the clock is running from the moment you find the defect) or, for habitability-level defects, the DPA. This is the zone where early advice pays: the discovery date needs evidencing (get the expert report promptly, it both proves the defect and dates your knowledge), and delay can itself expire the claim.

Beyond fifteen years: the DPA’s 30-year retrospective window for pre-2022 work is realistically the only door, for defects serious enough to clear its bar, against whichever firms in the chain still exist.

Issued just in time counts: limitation stops when proceedings are issued, not resolved.⁹ Where a deadline looms mid-negotiation, a protective claim (or a written standstill agreement pausing the clock) preserves the position, a solicitor’s move, cheaply made and routinely decisive.

Date the problem the day you find it, in writing with photographs; the site records you kept during the build tell the other half of the story, when the work was done. Between those two dates lives every argument this guide describes.

This guide is general information for homeowners in England and Wales, not legal advice.

References (9)

Figures in this note were checked against the sources below on 30 September 2026. Superscript numbers in the text point to them. Every source the site cites, by topic.

1technicalvery strongThe National Archives (legislation.gov.uk), legislation.RN-L5C0B9Section 5 of the Limitation Act 1980: an action founded on simple contract cannot be brought more than six years after the cause of action accrued. This is the six-year limit on suing a builder over a contract that was not executed as a deed, and it runs from the breach, not from when the defect was discovered. The single most important date in a dispute about defective work.
2technicalvery strongThe National Archives (legislation.gov.uk), legislation.RN-AUJII4Section 8 of the Limitation Act 1980 explains why a building contract executed as a deed is worth insisting on. Subsection (1): an action upon a specialty shall not be brought after the expiration of twelve years from the date on which the cause of action accrued. Subsection (2) confirms this does not override any shorter period prescribed elsewhere in the Act. A specialty is a contract executed as a deed, so where a homeowner and contractor sign the building contract as a deed the claim window for breach is twelve years from breach rather than the six years that section 5 gives for a simple contract. That difference matters for defects that take years to surface, such as inadequate foundations, failed damp proofing or a roof that only leaks under sustained driving rain. Read alongside section 14B, which imposes a fifteen year longstop on negligence claims, and the Defective Premises Act 1972 periods extended by the Building Safety Act 2022.
3technicalvery strongThe National Archives (legislation.gov.uk), guidance.RN-NAVTMPSection 2 of the Limitation Act 1980 sets the six-year limit for claims in tort, including negligence, from when the cause of action accrued, which in negligence is when damage occurs.
4technicalvery strongThe National Archives, guidance.RN-MHLPHLThe latent damage rule inserted by the Latent Damage Act 1986: a negligence claim for damage other than personal injury may be brought within six years of accrual or three years from the date of knowledge, whichever is later.
5technicalvery strongThe National Archives (legislation.gov.uk), legislation.RN-NT0BCVSection 14B of the Limitation Act 1980 is the absolute cut-off for negligence claims against a builder, designer or engineer where no personal injury is involved. Subsection (1): an action for damages for negligence, other than one to which section 11 or 11ZA applies, shall not be brought after the expiration of fifteen years from the date, or if more than one from the last of the dates, on which there occurred any act or omission alleged to constitute negligence and to which the damage is alleged to be attributable. The fifteen years runs from the negligent act itself, not from the date the homeowner discovered the problem, and it overrides the more generous three-year date-of-knowledge extension in section 14A. In practice a latent defect discovered sixteen years after the work was done is out of time in negligence however reasonable the delay in noticing it.
6technicalvery strongThe National Archives, guidance.RN-2HF4ITThe limitation section inserted by the Building Safety Act 2022 on 28 June 2022. It sets a 15-year limit for Defective Premises Act s.1 and s.2A claims, and 30 years for s.1 claims that accrued before that date.
7technicalvery strongThe National Archives, guidance.RN-LEM6X3The section that inserted s.2A into the Defective Premises Act 1972. It came into force on 28 June 2022 and applies only to work completed after that date.
8technicalvery strongThe National Archives (legislation.gov.uk), guidance.RN-FKNOW7Section 32 postpones the start of the limitation period where the claim is based on fraud or a relevant fact was deliberately concealed, until the claimant discovered it or could with reasonable diligence have done so.
9technicalvery strongThe National Archives (legislation.gov.uk), guidance.RN-H5ML1ECivil Procedure Rule 7.2 says proceedings start when the court issues the claim form, which is the point at which a claim is brought for limitation purposes.