A General Construction Contract is a legally binding agreement between an employer (the person or entity commissioning the works) and a contractor (the construction company or builder) for the carrying out of construction works in England and Wales. It governs every aspect of the construction project from start to finish: the scope of works, the price and payment mechanism, the programme, the allocation of risk, the quality standards required, and the remedies available if things go wrong.

General construction contracts in England and Wales are governed by the common law of contract supplemented by a number of key statutes. The Housing Grants, Construction and Regeneration Act 1996 (HGCRA 1996), as amended, is the most important piece of legislation. It requires all construction contracts within its scope to include compliant payment provisions — including a mechanism for payment notices and pay less notices — and grants both parties a statutory right to refer any dispute to adjudication at any time. Where a contract does not comply with the HGCRA 1996, the Scheme for Construction Contracts (England and Wales) Regulations 1998 is implied by statute.

The Construction (Design and Management) Regulations 2015 (CDM 2015) impose health and safety obligations on all parties involved in a construction project. For projects involving more than one contractor, the client must appoint a Principal Designer and a Principal Contractor in writing before construction begins. The Building Safety Act 2022 introduced further obligations for those working on higher-risk buildings (broadly, buildings of 18 metres or more). The Defective Premises Act 1972 imposes a duty of care on those who carry out work in connection with dwellings.

The JCT (Joint Contracts Tribunal) publishes a suite of standard form construction contracts — including the JCT Standard Building Contract, JCT Minor Works, and JCT Design and Build — that are widely used throughout the UK construction industry. Our UK General Construction Contract template is modelled on the JCT approach and incorporates the mandatory HGCRA 1996 requirements, CDM 2015 provisions, and Building Safety Act 2022 obligations in an accessible format.

A General Construction Contract should be used for any commercial or large-scale residential construction project of substance where detailed contractual protection is required for both parties.

This form of contract is appropriate when commissioning: new commercial buildings such as offices, warehouses, retail units, or mixed-use developments; large residential developments involving multiple units; substantial extensions or major structural alterations to commercial properties; design and build projects where the contractor is responsible for both design and construction; fit-out works to commercial or industrial premises; civil engineering or infrastructure works forming part of a building project; or any project where the contract sum is significant and the employer requires robust protections for payment, delay, and quality.

A General Construction Contract is more appropriate than a simpler building contract in several situations: where the project involves multiple specialist subcontractors requiring coordination; where the employer requires detailed programme obligations and extension of time provisions; where the project requires Bills of Quantities or a detailed specification forming part of the Contract Documents; where the employer requires the full suite of HGCRA 1996 payment mechanisms with clearly defined Payment Notices and Pay Less Notices; or where the project involves obligations under the Building Safety Act 2022 as a higher-risk building.

Without a written construction contract of sufficient detail, disputes about the scope of works, the contract price, the programme, and the allocation of risk are inevitable. The courts of England and Wales will imply terms where necessary, but this is a costly and uncertain process. A well-drafted General Construction Contract provides certainty and a clear framework for resolving issues as they arise during the project.

A comprehensive General Construction Contract for use in England and Wales must address a number of key provisions to protect both the employer and the contractor throughout the project.

The scope of works is the foundation of the contract. It should describe the works with sufficient precision to prevent disputes about what is and is not included in the Contract Sum. Best practice is to attach detailed drawings and a specification to the contract, cross-referenced to the works description. The contract should also make clear which party is responsible for obtaining planning permission, Building Regulations approvals, and other regulatory consents.

The payment provisions are the most legally regulated aspect of a construction contract. The contract must comply with the HGCRA 1996 by specifying the payment due dates, the procedure for Payment Notices and Pay Less Notices, and the final date for payment. The practical consequence of the Pay Less Notice regime is that an employer who fails to issue a Pay Less Notice before the final date for payment must pay the full sum notified in the Payment Notice, regardless of any dispute about the quality or extent of the works.

The programme and completion date clause defines the Contractor's obligation to complete by a specific date and the consequences of delay. The liquidated damages clause — specifying a pre-agreed rate per week of culpable delay — provides the employer with a readily quantifiable remedy without the need to prove actual loss. The extension of time mechanism allows the Contractor relief from liquidated damages where delay is caused by employer risk events, preventing the employer from benefiting from its own delays.

The defects liability period (typically 6 to 12 months after practical completion) obliges the Contractor to return and make good any defects at its own cost. This period should be distinguished from the Contractor's wider liability for latent defects under the Limitation Act 1980, the Defective Premises Act 1972, and (for higher-risk buildings) the Building Safety Act 2022, which can extend to 12 or 15 years depending on the nature of the defect and the form of contract.

The adjudication clause must comply with section 108 of the HGCRA 1996 and grant each party the right to refer any dispute to adjudication at any time. Adjudication provides a rapid, binding (though temporarily final) dispute resolution mechanism that can resolve payment and other disputes in as little as 28 days, without the cost and delay of litigation.