Construction Phase Plan (CPP) Cost Considerations.
A Construction Phase Plan (CPP) must be drawn up before site setup begins. The cost of drafting, updating, and enforcing the CPP forms part of the site preliminary expenses.
Authored by Alexandr Vreme | Reviewed by Maksym Vasylkov
Published — Next review
Who this guide is for
Principal contractors, site managers, and safety officers. Scope: UK-wide.
What the CPP Cost Build-up Covers
The CPP details site rules, emergency protocols, fire plans, traffic management, and high-risk activity controls. Estimators must allow for both initial document creation and ongoing management updates.
Competent-Person Review
While digital templates provide a baseline draft, every CPP requires review and adaptation by a competent site professional to reflect site-specific hazards.
Miniature Example
Drafting and reviewing a site-specific CPP for a complex structural underpinning project requires 6 hours of senior manager time (£300), separate from ongoing site inspection costs.
Primary Sources & Further Reading
Official reference sources: GOV.UK Building Regulations, Legislation.gov.uk, and HSE CDM 2015 Guidance.
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