At what stage should cost planning begin?

Ideally at RIBA Stage 0 or 1. The earlier we are involved, the more influence we can exert over the budget and the fewer surprises arise later.

How accurate are early-stage estimates?

Order of cost estimates typically carry a ±15–20% tolerance. Accuracy improves as the design develops, with elemental cost plans at Stage 3 typically within ±5–10%.

Do you handle final accounts?

Yes. We manage the final account process from initial assessment through to agreed settlement, ensuring the contractor is paid fairly and the client is protected.

Can you work with our existing design team?

Absolutely. We regularly integrate with architect-led teams, providing cost oversight that supports design decision-making without duplicating effort.

Cost Planning & Budgeting

Rigorous cost planning from concept through to completion, ensuring your construction project remains financially viable and free from unwelcome surprises.

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Financial Clarity, From Day One

Effective cost planning is the foundation of a successful construction project. Our quantity surveyors and cost consultants work alongside your design team to establish accurate budgets, monitor expenditure, and provide regular cost reports that keep stakeholders fully informed throughout.

Order of Cost Estimates

Early-stage budget estimates based on functional units and benchmarked data to establish project affordability.

Elemental Cost Plans

Detailed elemental breakdowns at each RIBA stage, tracking cost against design development.

Cash-Flow Forecasting

Monthly expenditure projections aligned to the construction programme for treasury planning.

Post-Contract Cost Control

Ongoing monitoring of variations, valuations, and final account negotiations.

Benefits of Professional Cost Planning Keep your project on budget

Budget Certainty

Establish and maintain a realistic budget that reflects project scope and market conditions.

Risk Mitigation

Identify and manage cost risks with appropriate contingencies and mitigation strategies.

Design Accountability

Hold the design team accountable to the approved budget at every design stage.

Stakeholder Reporting

Clear, concise cost reports that keep clients, funders, and boards fully informed.

Value Optimisation

Continuous value engineering to maximise quality within the approved budget.

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When to Engage Cost Planning Services

The earlier a cost consultant is appointed, the greater the opportunity to influence project outcomes and avoid costly redesign.

Pre-Design

You need a realistic budget before briefing architects or appointing a design team.

Design Development

Your project is progressing through RIBA stages and you need cost checks at each gateway.

Tender Stage

You require bills of quantities or an employer's cost estimate for competitive tendering.

Construction Phase

You need post-contract cost management including valuations, variations, and final accounts.

The Greenwave Advantage

Chartered Surveyors

Cost advice from RICS-qualified professionals with extensive market knowledge.

Independent Service

Impartial cost advice that protects the client's financial interests at all times.

Market Intelligence

Up-to-date benchmarking data and supply chain insight for accurate pricing.

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Need Cost Planning Support?

Speak with our cost consultants to discuss your project requirements and how we can help you maintain financial control.

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Cost Planning & Budgeting Frequently Asked Questions

Common questions about our cost planning and budget management services.