Last edited 14 Oct 2016

Elemental cost plan for design and construction

Cost plans are generally prepared by cost consultants (often quantity surveyors). They evolve through the life of the project, developing in detail and accuracy as more information becomes available about the nature of the design, and then actual prices are provided by specialist contractors, contractors and suppliers. They range from very early initial cost appraisals through to tender pricing documents and the final account:

Other than initial cost appraisals, these all relate to the construction cost of the project (rather than wider project costs that the client might incur, which could include; fees, equipment costs, furniture, the cost of moving staff, contracts outside of the main works and so on). It is important that the client makes clear what costs should be monitored by the cost consultant and what will remain within the control of the client organisation.

The elemental cost plan is a detailed cost plan which is broken down into a series of elements. Initially, the elemental cost plan will simply be the total construction cost for the project divided into elements on a percentage basis. As the design becomes more detailed however, the elemental cost plan will be 'measured', based on the actual quantities of work and materials that will be required to construct the project.

The elemental cost plan should be prepared in a spreadsheet format that is easy to interrogate and import into costing software and should adopt a standard approach such as that defined by the new rules of measurement (NRM).

The elemental cost plan should set out any assumptions that have been made, should identify any exclusions agreed with the client and should present an outline assessment of whole life costs. It might also include a list of abnormal or non-standard items, to help inform any value management exercises.

The elemental cost plan will be monitored by the cost consultant. The client's project cost plan is monitored by the client's finance officer and is calculated by adding items such as:

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