Out-Law Guide 5 min. read

Construction projects: contractual and non-contractual acceleration

Acceleration applies when an employer on a construction project requires the contractual completion date to be brought forward.

Acceleration can come about either through the employer exercising an existing contractual right to require accelerated completion, or by the employer and contractor entering into an agreement to accelerate which sits alongside the existing construction contract and serves to vary its terms.

When acceleration occurs, it will be critical to understand what additional responsibilities and risks the parties are taking on and what entitlement to additional payment the contractor might have.  Recording all of these points in a separate agreement between the parties is important.

In the current climate, with so much pressure on supply chains and resource not readily available, it might prove to be a brave contractor who takes on a commitment to accelerate. Nevertheless, these market pressures may well provide a contractor with the prospect of significant addtitional profitable revenue and so, if the risk profile is acceptable, acceleration may prove to be a welcome opportunity and a risk worth taking.

Acceleration should not be confused with a contractor taking steps to finish earlier in circumstances where a project is running late because of that contractor’s culpable delay. Efforts to finish earlier in these circumstances – and thereby avoiding a liability for delay damages – are more likely to be characterised as mitigation than acceleration.

Acceleration under a contractual provision

Where an employer instructs a contractor to accelerate under an agreed contractual provision, the basis for the contractor to be paid costs associated with that acceleration might already be identified in that provision. These additional costs are usually agreed by the employer accepting a quotation from the contractor to accelerate and a formal instruction to accelerate is then issued. For example, a contractor might be paid its acceleration costs on a lump sum basis or on a cost reimbursable basis.

Contracts also ought to identify how further delay – whether culpable or excusable – is to be addressed and what happens if, for whatever reason, the accelerated completion date is missed. If there are deficiencies in the contractually agreed process, it may be that a separate acceleration agreement is entered into which addresses these points.

What if the contract does not provide for acceleration?

If the construction contract does not provide for acceleration, but the contractor and employer nevertheless agree that accelerative measures should be taken, the commercial terms on which acceleration is to take place ought to be recorded in a supplemental agreement before those measures are put into effect. This agreement will act as a variation to the original construction contract and so any provisions in the existing contract which regulate how the construction contract is to be varied need to be properly addressed. 

What acceleration measures might be employed?

A variety of measures that might be taken for the purposes of accelerating progress or recovering delay. Often, a number of these measures will be deployed together.

Potential options the parties may wish to consider include:

  • increasing labour resources, including introducing longer or additional shifts in the form of evening or weekend working;
  • increasing the quantity of available plant and equipment;
  • increasing the allocation of head office or other administrative or supervisory resources;
  • adopting alternative construction methods, such as off-site manufacturing;
  • re-sequencing or compressing activities in the programme;
  • increasing quality control resource and enhancing quality control procedures; or
  • adding new suppliers to the existing supply chain.   

For these measures to work effectively, the contractor might require certain commitments or assurances from the employer. For example, the employer might be required to issue design information or approve designs by an earlier date, perhaps subject to the contractor providing regular and reliable ‘look-ahead’ forecasts which identify when approved design information is required. 

What should be covered in an acceleration agreement?

The main points that you would expect to see covered in an acceleration agreement include:

  • details of the works that are to be completed early. The agreement to accelerate might apply to all the works or it might just apply to certain sections of the project;
  • the agreed acceleration measures and any entitlement for the employer to instruct additional measures;
  • an agreed acceleration programme which has been re-programmed or re-sequenced based on the agreed acceleration measures so that the new target completion date is hit. The accleration agreement might include an obligation for updated programmes to be provided at regular intervals;
  • the additional payment to the contractor for taking the acceleration measures and any further payment that the contractor is entitled to as an incentive to hit the accelerated completion date;
  • details of how any existing claims for time and money are to be addressed. Are these compromised by the acceleration agreement or are they held over to be resolved later?
  • provisions which explain the consequences if the new completion date is missed, whether this is the result of excusable delay or a breach of the agreement by the contractor; and
  • confirmation that work performed under the acceleration agreement is deemed to be part of the works delivered under the main contract. This means that existing provisions around defects, for example, will apply to the accelerated work as well as the original work.

Parties to an acceleration agreement should also reflect on what the impact of early completion might be on other agreements of early completion. For example, if certain events are triggered under an ‘agreement for lease by completion’ under the building contract being reached, are the parties to that agreement prepared for early completion? Consider also whether obligations from a guarantor or funder need to be stated as continuing to apply following a variation to the main bulding contract.

Constructive acceleration

If a contractor is delayed for reasons which it argues are not its responsibility, but the employer disagrees and refuses to award an extension of time or instruct acceleration, the contractor has a tough decision to make: whether to make a formal claim for an extension of time that the employer has already refused; or to accelerate, at its own cost, to avoid or mitigate its potential exposure to liquidated damages. The latter scenario is described as “constructive acceleration”.

Claims for constructive acceleration have yet to succeed in the courts in England and Wales. However, courts in other Commonwealth jurisdictions have been more sympathetic to this line of argument.

A recent Australian case, V601 Developments Pty Ltd v Probuild Constructions (Aust) Pty Ltd, shows the potential for a contractor to claim acceleration costs where it can establish a breach of contract by the Employer in not awarding an extension of time in circumstances where it was obliged to do so. See our coverage of the Probuild case for more on construction acceleration.

Unless there is a shift in approach in the courts of England and Wales, contractors may wish to seek an early decision through adjudication as to whether they are entitled to an extension of time.

Co-written by Frankie Bell of Pinsent Masons

We are processing your request. \n Thank you for your patience. An error occurred. This could be due to inactivity on the page - please try again.