A 16% budget-envelope rise before the final price — what Peterborough’s pre-construction reset means for your package

What happened

Peterborough City Council is progressing an increase in the budget envelope for its new Sports Quarter leisure centre from £37.1m to as much as £43m—an increase of approximately 16%.

That does not mean the agreed construction price has risen to £43m.

Alliance Leisure’s assessment at the end of RIBA Stage 3 was approximately £40.03m, with the council’s current overall requirement calculated at around £40.33m. The additional headroom is intended to manage unresolved project risks and reduce the prospect of the council having to return for further approval. The project team’s stated aim is still to deliver the scheme for less than £40m.

The RIBA Stage 3 assessment includes a 7% project contingency of approximately £2.52m, which is expected to reduce to 5% when RIBA Stage 4 concludes. However, the project team has identified further risks that may not be fully covered, including hazardous waste, utility diversions and highways improvements.

The proposed contractual structure is also important. Peterborough City Council intends to enter into Development Management Agreements with Alliance Leisure Services for the early works and main construction. Alliance Leisure has selected Willmott Dixon as principal contractor and intends to enter into a JCT contract with it. The council will not have a direct building contract with Willmott Dixon, although it expects to receive collateral warranties.

The current indicative programme shows:

• early works commencing in October 2026;
• planning determination in October 2026;
• RIBA Stage 4 and the final price concluding in December 2026;
• the main construction agreement being signed in December 2026;
• construction commencing in January or February 2027; and
• practical completion by the end of summer 2028.

The important commercial point is not simply that the budget has increased. It is that early works and material commitments may begin before the design, final price and main construction agreement are complete.

Does this affect you?

Directly, this matters if you are pricing or discussing a package with Alliance Leisure, Willmott Dixon or a member of their supply chain.

Indirectly, it is a useful example of the risks that arise on two-stage and preconstruction projects. A budget may be approved, a preferred contractor may be selected and early works may start—but that does not mean the design is frozen, the main-contract price is agreed or every package is ready to be placed.

A price submitted during preconstruction can quickly become out of date as the design, quantities, programme and risk allocation develop.

The lesson is straightforward: do not allow a preliminary or Stage 3 price to drift into a fixed-price subcontract without confirming exactly what has changed.

Subby Mate: if you are on the tools

The one thing: If you have submitted a price for this project, ask whether it is still being treated as a budget, an outstanding quotation or an agreed price.

Send this:

“Please confirm whether our current submission remains a budget price or is being relied upon for order placement. Our price is based on the stated scope, programme and validity period and will require review before acceptance if any of those have changed.”

• If your quotation has not been accepted, confirm its expiry date and the date on which it must be updated. Do not assume that an old submission remains commercially safe because nobody has challenged it.
• If your quotation has already been accepted or incorporated into an order, you cannot simply increase it because market prices have moved. Check the order, agreed qualifications and any fluctuation provisions before committing further expenditure.
• The council’s own budget increase does not automatically entitle you to increase your price. Any revision should be supported by an expired quotation, updated supplier prices, design development, scope changes, revised quantities or a changed programme.
• Early works may include site setup and orders for materials or machinery. Do not place an order or reserve production capacity without written authority stating what you are being paid to do and what happens if the main works do not proceed.
• If you are asked to hold labour for October or the main construction start, obtain an actual mobilisation date and required duration. A proposed programme is not the same as a confirmed instruction.

If you are a subcontractor QS

The £43m figure is a client budget envelope, not a pot of money available to settle supply-chain risk. The project contingency gives subcontractors no automatic entitlement to recover inflation, design development or unforeseen costs.

Every preconstruction submission should identify:

• the quotation date and validity period;
• the design stage on which it is based;
• the drawings, specifications and schedules included;
• the quantities and scope assumptions used;
• the proposed start and completion dates;
• the anticipated procurement and manufacturing periods;
• exclusions relating to inflation or price movement;
• design responsibilities and coordination allowances;
• access, logistics and working-hour assumptions; and
• the status of unresolved risks and provisional allowances.

When the Stage 4 information is issued, prepare a proper reconciliation against your Stage 3 submission. Do not simply replace the total. Show what has changed in scope, quantity, specification, design responsibility, programme and risk.

The early works package requires particular care. Before accepting an instruction to procure materials or commence enabling work, establish:

• the value and scope of the authorised work;
• whether it is a separate order or part of the proposed main subcontract;
• the payment terms;
• the expenditure cap;
• the cancellation and suspension provisions;
• responsibility for abortive costs;
• ownership and vesting of materials;
• insurance and storage requirements;
• responsibility for price increases after the order; and
• what happens if the main construction contract is not executed.

There is also a potential highways interface. The council may procure highways-related works through M Group under its existing highways contract or instruct them through Alliance Leisure.

If your package touches external services, access roads, drainage, utilities, boundaries or public-realm works, obtain a written demarcation. Do not assume that everything shown outside the building footprint is included—or excluded—without checking.

If you are a main contractor QS

Before converting preconstruction pricing into the final construction sum, review every significant second-tier quotation against the latest Stage 4 information.

For each package, check:

• when the quotation was submitted;
• whether it remains open for acceptance;
• which design information it covers;
• which supplier quotations support it;
• whether the proposed programme remains achievable;
• whether design or coordination responsibility has increased;
• which qualifications remain outstanding; and
• whether the package includes the risks now identified by the project team.

The main construction start is only a few months away, but that does not make price validity irrelevant. Steel, timber, insulation and M&E equipment have been identified as areas of cost pressure. A quotation can become unreliable quickly where supplier validity periods are short or manufacturing slots are limited.

The council report anticipates a fixed-price turnkey approach transferring a significant proportion of design, construction and delivery risk to the contractor. Before accepting that position upstream—or passing it downstream—identify which risks are properly priced and which remain dependent on further investigation or design.

A general instruction to “include all risk” does not produce certainty if the information required to assess that risk does not yet exist.

The early works position is equally important. Materials and machinery may be ordered before the Stage 4 price and main construction agreement are final. Before making commitments, confirm:

• that the relevant planning, budget and contractual conditions have been satisfied;
• who has authority to approve expenditure;
• the maximum authorised commitment;
• how early expenditure will be valued and paid;
• who carries cancellation and redesign costs; and
• whether the commitment will transfer into the main contract.

Do not treat the £43m budget envelope as authority to spend. Expenditure still requires approval through the relevant contract and governance process.

Risks and what to do about them

The final price is not yet agreed

The current assessment is based on RIBA Stage 3 information, with the Stage 4 design and final price expected in December.

Action: Reconcile every package against the final Stage 4 information before accepting or placing a fixed-price order.

Early commitments may precede the main contract

Early works may include site clearance, setup and orders for materials and machinery before the main construction agreement is signed.

Action: Use a clearly defined early works order with an expenditure cap, payment mechanism and provisions covering cancellation, ownership and abortive costs.

Project contingency does not protect package margins

The council’s budget includes contingency, but this is controlled at project level and is not automatically available to the supply chain.

Action: Price identifiable package risks and qualify matters that cannot reasonably be assessed. Do not rely on recovering them from the client’s contingency later.

Unresolved physical and infrastructure risks remain

Hazardous waste, utility diversions and highways improvements have been identified as risks that may not be fully covered by the current contingency.

Action: Establish who owns each risk and whether it is included, excluded, provisional or subject to remeasurement before agreeing a lump sum.

Highway works may follow a different contractual route

Highways works may be delivered through M Group or instructed through Alliance Leisure.

Action: Obtain a scope and responsibility matrix for anything that crosses the building, site-boundary and public-highway interfaces.

Accepted and unaccepted prices require different treatment

An outstanding quotation may still be capable of withdrawal or revision. A price already accepted or incorporated into an order cannot be changed unilaterally.

Action: Separate live quotations into “unaccepted”, “accepted” and “ordered” before deciding what commercial action is available.

Do this week

Ten minutes: Review your latest Peterborough submission and ask:

1. Is this still a budget price or is it being relied upon for an order?
2. What design revision and programme is it being assessed against?
3. When is the package expected to be placed?
4. Will we be invited to update it following completion of RIBA Stage 4?

Save the response.

A day, if you can spare it: Review every live two-stage or preconstruction submission your business currently has outstanding. Record:

• the date submitted;
• the validity period;
• the design revision used;
• the assumed start date;
• the principal supplier quotations;
• the current procurement status; and
• whether the price has been accepted or incorporated into an order.

Where an offer remains unaccepted and has become outdated, formally withdraw or supersede it with a revised submission. Where a price has already been accepted, review the contract before assuming that it can be changed.

The commercial takeaway

Peterborough’s increase from £37.1m to a budget envelope of up to £43m shows how significantly the cost and risk picture can develop between early design and the end of Stage 4.

The council is providing additional financial headroom, but the proposed procurement model is still intended to transfer substantial design and construction risk to the delivery chain.

For subcontractors, the protection is not the client’s contingency. It is a properly qualified quotation, a clear validity period, an agreed scope and a written order that states exactly what happens if the design, programme or main contract changes.

A preconstruction price is not automatically a construction price.

Source: Adapted from publicly available construction industry news, analysed by QS-AI.