Quantification and costing of construction work
This content is reproduced from the RICS Associate pathway guide.
This competency covers the measurement and definition of construction works in order to value and control costs. It covers the candidate's understanding and involvement with the various methods of quantifying and pricing construction works used throughout a project.
Note: The measurement and costing of works for estimates and cost plans is dealt with under the competency Design economics and cost planning.
Demonstrate knowledge and understanding of the principles of quantification and costing of construction works as a basis for the financial management of contracts.
Apply your knowledge to the quantification and costing of construction works, including the use of appropriate standard methods of measurement and forms of cost analysis. Carry out measurement and costing of works at all stages of the construction process.
Examples of likely knowledge, skills and experience
- the quantification of construction works (including both measurement and definition)
- the various standard methods of measurement
- the costing of construction works
- the measurement of buildings and structures to agreed standards
- quantifying construction works at the various stages of a project
- producing pricing documents, such as bills of quantities, schedules of activities/works, schedules of rates or contract sum analyses
- carrying out the costing of construction works by methods such as tendered rates, quotations or dayworks
You must provide four different documents as evidence for each competency. The list of examples below is not a definitive list but is for illustration only. It is for you to ensure that the documents provide evidence of the knowledge, skills and experience listed above.
Evidence should demonstrate involvement with the preparation of the following:
- manual or computerised take offs/measurement or re-measurement of site works
- pricing documents, such as bills of quantities, schedule of activities/works, schedule of rates, builder's quantities, variation accounts
- valuation of variations using tendered rates, fair valuation/rates for new items of work, quotations, or dayworks
- agreement/negotiation of variations
Documentation must clearly show the candidate's involvement with the piece of work and how he/she dealt with matters, such as:
- design queries/Q&A sheets
- to take lists
- quantity checks
- building up rates from first principles
- prime cost and provisional sums
- preliminaries, overheads and profit within variations
- professional and other fees within variations
isurv recommended reading and services
- Conceptual cost planning (available in isurv Construction)
- Cost management (available in isurv Construction)
- Whole life costing (available in isurv Construction and isurv Sustainability)