Clause Centre

No claim for site conditions

05 August 2026
Clause Text

The Sub-Contractor is deemed fully to have satisfied itself as to all matters of access and site conditions and the Sub-Contractor shall have no claim against the Contractor in relation to any such matters.

Why is this clause problematic?
The clause allocates all access and site-condition risk to the Sub-Contractor. It deems the Sub-Contractor to have fully investigated and understood all relevant conditions before entering into the subcontract and prevents any claim arising from those matters. Disputes commonly arise where actual conditions differ from tender assumptions or where significant constraints only become apparent after commencement.

The clause is intended to place the risk of access arrangements and site conditions on the Sub-Contractor. It operates in two principal ways:

  1. Deemed satisfaction: the Sub-Contractor is treated as having satisfied itself, before entering into the subcontract, as to all matters affecting access to the site and the conditions likely to be encountered there.
  2. Exclusion of claims: the Sub-Contractor is prevented from pursuing a claim against the Contractor arising out of those matters, whether by way of additional payment, loss and expense, or an extension of time.

On its face, the clause is drafted broadly. It seeks to allocate to the Sub-Contractor the risk that access arrangements or site conditions may prove more difficult, restrictive or costly than anticipated. The Contractor is therefore likely to contend that the Sub-Contractor accepted that risk when pricing and entering into the subcontract.

The practical difficulty is that a subcontractor will often tender on the basis of limited information and within a restricted period. It may have had little opportunity to inspect the site, observe actual working conditions, assess access and logistics, investigate concealed conditions, or understand the effect of the Contractor’s proposed sequence and the activities of other trades.

Disputes are therefore likely to arise where the conditions encountered differ materially from those reasonably assumed at tender stage, or where significant constraints become apparent only after the Sub-Contractor has commenced work.

Typical matters giving rise to dispute

These may include:

  • restricted or altered access routes;
  • security and permit procedures causing delay;
  • limited delivery, unloading or storage areas;
  • out-of-sequence or fragmented working;
  • congestion caused by other trades;
  • unexpected underground services;
  • contamination;
  • unforeseen ground conditions;
  • restrictions imposed by the Contractor, employer or other subcontractors; and
  • changes to the planned method, sequence or timing of the works.

In those circumstances, the Sub-Contractor may argue that the matter was not disclosed, was not reasonably discoverable, or arose from events occurring after the subcontract was entered into. It may therefore seek additional time or payment.

The Contractor’s response is likely to be that the Sub-Contractor was contractually deemed to have satisfied itself as to the relevant matters and expressly agreed that no claim would arise from them.

The resulting dispute will commonly turn on the proper construction and scope of the clause. In particular, questions may arise as to whether it extends to concealed or undisclosed conditions, post-contract changes, inaccurate information supplied by the Contractor, or constraints caused by the Contractor’s own acts or omissions. Although the wording is wide, it should not automatically be assumed to exclude every possible claim connected with access or site conditions. Its effect will depend on the subcontract as a whole and the factual cause of the additional cost or delay.

What were the cost consequences?

The clause may leave the Sub-Contractor unable to recover substantial additional costs arising from restricted access, congestion, unforeseen site constraints, loss of productivity, re-sequencing, delay and prolongation. This risk is particularly significant where the Sub-Contractor had only a limited opportunity before tender to inspect the site, assess the proposed working arrangements or investigate concealed conditions.

The resulting financial exposure may include:

  • additional labour costs;
  • reduced productivity and disruption;
  • re-sequencing and fragmented working costs;
  • additional supervision and management;
  • abortive attendance;
  • extended preliminaries;
  • demobilisation and remobilisation costs;
  • plant standing time;
  • acceleration costs; and
  • prolongation costs.

For example, where deliveries are subject to an unexpectedly restrictive security or booking procedure and unloading takes materially longer than anticipated, the Sub-Contractor may incur substantial additional labour, supervision and plant costs. The Contractor may nevertheless rely on the deeming provision and claims exclusion to argue that those costs are irrecoverable.

Similarly, where unforeseen site constraints impede progress, the Sub-Contractor may be required to bear both its own prolongation costs and any contractual liability arising from delay. The commercial risk is therefore twofold: the Sub-Contractor may lose its entitlement to additional payment while remaining exposed to delay damages, backcharges or other downstream liabilities.

The clause is especially onerous because many of the affected costs will not be apparent at tender stage. They may emerge only once the works are under way and the actual access arrangements, logistics, sequencing requirements and site constraints become clear.

Relevant authority

The most helpful authority is Obrascon Huarte Lain SA v Her Majesty’s Attorney General for Gibraltar [2014] EWHC 1028 (TCC).

Under the relevant FIDIC provisions, the contractor was responsible for interpreting the pre-tender site data and was deemed, so far as practicable, to have obtained and considered the information necessary to assess the risks and circumstances affecting the works. Applying the objective standard of an experienced contractor, the court rejected the contractor’s case that the contaminated soil and groundwater encountered were unforeseeable. The available information, considered together with the site’s history, should reasonably have alerted an experienced contractor to those risks. See [13]–[14], [213]–[227] and [229]–[235].

The case supports the proposition that, where the contract places responsibility on the contractor to interpret available information and assess site risks, the court may hold the contractor to the standard of what an experienced contractor ought reasonably to have appreciated at tender stage. It does not, however, establish that every access or site-condition claim will necessarily be excluded. The effect of the clause will still depend on its wording, the subcontract as a whole, the information made available before tender, and whether the relevant constraint existed at that time or arose later through the Contractor’s acts, omissions or changes to the planned working arrangements.

Amendment to Standard Form

Not applicable.

Associated Clauses

Not applicable.

Relevant Case Reference

A helpful authority is Obrascon Huarte Lain SA v Her Majesty’s Attorney General for Gibraltar [2014] EWHC 1028 (TCC).

Contract Type
Subcontract
Jurisdiction / Region
England & Wales
Clause Function Category
Payment
Variations
Extensions of Time
Liquidated Damages
Design Responsibility
Practical Completion
Risk Allocation
Risk Type
Unclear or Disputed Trigger Event
Timing / Extension of Time Risk
Non-Payment / Late Payment
Valuation / Under or Over-Measurement
Imbalanced / One-Sided Terms
Change Management / Variations Risk
Scope Creep / Scope Ambiguity
Interpretation / Legal Classification Dispute
Design Liability Allocation
Risk Allocation (e.g. force majeure, ground conditions)
Known outcomes?
Led to dispute
Adjudicated
Clause BEE Score
Bias 5
Exposure 4
Enforceability 4

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Reminder - The Three Dimensions

1. Bias (B-Score)

How is risk structurally allocated?

  1. Extreme Imbalance
  2. Significantly Unfair
  3. Moderately One-Sided
  4. Slightly Skewed
  5. Balanced

Higher numbers indicate increasing allocation of risk to one party.

2. Exposure (E-Score)

What happens if the clause operates?

  1. Severe / Litigation Likely
  2. High-Risk Outcome
  3. Material Exposure
  4. Manageable Impact
  5. Low Consequence

Higher numbers indicate greater real-world cost, delay, or dispute risk.

3. Enforceability (Enf.)

Is the clause likely to be upheld and applied as written?

  1. Highly likely to be enforced
  2. Generally enforceable
  3. Contestable / uncertain
  4. Legally vulnerable
  5. Unlikely to be enforced

Higher numbers indicate greater likelihood of legal effect.