Penalties in construction
In construction, the term 'penalty' typically refers to a financial payment imposed in the event of a breach of contract.
In 'Legione v Hateley' [1983], Mason and Deane JJ defined a penalty as follows:
“A penalty, as its name suggests, is in the nature of a punishment for non-observance of a contractual stipulation; it consists of the imposition of an additional or different liability upon breach of the contractual stipulation …”
However, 'penal' clauses, ie those that impose a punishment may not enforceable. Until recently, it was considered that they must be based on a genuine calculation of actual damages incurred. In effect therefore 'penalties' were not allowed, albeit the phrase was still commonly used to refer to the payment of damages or some other liability imposed upon breach of a contractual stipulation.
For example, liquidated and ascertained damages (LADs) are common in construction contracts, generally relating to the failure of the contractor to complete the construction works before the date required by the contract. However, they are generally based on a genuine calculation of damages, and if they are not, or if they are exorbitant, they may be considered a penalty by the courts and therefore may be unenforceable.
For more information see: Liquidated and ascertained damages.
This precedent was set by Dunlop Pneumatic Tyre Co Ltd v New Garage and Motor Co Ltd, in which a contractual provision was considered to be a penalty if it was penal rather than a pre-estimate of loss. This determination is often made based on the terms and inherent circumstances of each particular contract, judged at the time of making the contract, not at the time of the breach.
However, in the case of 'Cavendish Square Holding BV v Talal El Makdessi (El Makdessi) and ParkingEye Ltd v Beavis' [2015], the Supreme Court re-considered the long-established principles underlying contractual penalty clauses. It held that the 'Dunlop rule' had been too rigidly applied, particularly where the inclusion of a penalty clause may have some clear justification, commercial or otherwise.
Lord Hodge stated that the "correct test for a penalty is whether the sum or remedy stipulated as a consequence of a breach of contract is exorbitant or unconscionable when regard is had to the innocent party's interest in the performance of the contract".
The new test set out by the Supreme Court recognises that the contractual party may have a legitimate interest which can be protected by a contractual penalty, and this interest need not be a genuine pre-estimate of loss. If that party is able to demonstrate that the penalty clause is being used to protect that legitimate interest, and it is not 'exorbitant or unconscionable', then they do not have to suffer a loss, and the predominant purpose of such a clause can be deter the other party from a certain breach of contract.
Examples of other penalties relevant to construction, not strictly related to breaches of contract, include:
- If landlords fail to carry out appropriate checks and rent a property to someone who is not allowed to stay in the UK, they could face a penalty of up to £3,000 per tenant.
- Local authorities can serve a legal notice on the person responsible for noise. If the noise problem persists they may be given a fixed penalty notice or taken to court and fined up to £5,000.
- Renting out a property that does not comply with the minimum energy efficiency standards might incur a penalty of up to £4,000 for domestic properties and up to £150,000 for non-domestic properties.
[edit] Related articles on Designing Buildings Wiki
- Compensation event.
- Contractual obligation.
- Damages in construction contracts.
- Delay damages.
- Liquidated damages in construction contracts.
- Liquidated v unliquidated damages.
- Measure of damages for construction contracts.
- Prompt payment code.
- Relevant event.
- The distinction between liquidated damages clauses and penalty clauses.
Featured articles and news
Do you take the lead in a circular construction economy?
Help us develop and expand this wiki as a resource for academia and industry alike.
Warm Homes Plan Workforce Taskforce
Risks of undermining UK’s energy transition due to lack of electrotechnical industry representation, says ECA.
Cost Optimal Domestic Electrification CODE
Modelling retrofits only on costs that directly impact the consumer: upfront cost of equipment, energy costs and maintenance costs.
The Warm Homes Plan details released
What's new and what is not, with industry reactions.
Could AI and VR cause an increase the value of heritage?
The Orange book: 2026 Amendment 4 to BS 7671:2018
ECA welcomes IET and BSI content sign off.
How neural technologies could transform the design future
Enhancing legacy parametric engines, offering novel ways to explore solutions and generate geometry.
Key AI related terms to be aware of
With explanations from the UK government and other bodies.
From QS to further education teacher
Applying real world skills with the next generation.
A guide on how children can use LEGO to mirror real engineering processes.
Data infrastructure for next-generation materials science
Research Data Express to automate data processing and create AI-ready datasets for materials research.
Wired for the Future with ECA; powering skills and progress
ECA South Wales Business Day 2025, a day to remember.
AI for the conservation professional
A level of sophistication previously reserved for science fiction.
Biomass harvested in cycles of less than ten years.
An interview with the new CIAT President
Usman Yaqub BSc (Hons) PCIAT MFPWS.
Cost benefit model report of building safety regime in Wales
Proposed policy option costs for design and construction stage of the new building safety regime in Wales.
Do you receive our free biweekly newsletter?
If not you can sign up to receive it in your mailbox here.























