Quantity surveyor

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A Quantity Surveyor (QS) is a professional in the construction industry concerned with construction costs and contracts, with expertise in construction cost consulting and cost estimating. They are not to be confused with Land Surveyors or Land Survey Engineers.

Services provided by a quantity surveyor may include:

  • Cost planning and commercial management throughout the entire life cycle of the project from inception to post-completion
  • Value determination
  • Risk management and calculation
  • Procurement advice and assistance during the tendering procedures
  • Tender analysis and agreement of the contract sum
  • Commercial management and contract administration
  • Assistance in dispute resolution
  • Asset capitalisation
  • Interim valuations and payment assessment
  • Cost management process
  • Assessing the additional costs of design variations
  • Production of company pre-qualification questionnaire (PQQ) documentation in line with company policies.

Traditional quantity surveying services[edit]

  1. Cost planning
  2. Estimating
  3. Contracts negotiation
  4. Procurement advice
  5. Preparing Bill of Quantities (BOQ) and Tender Document
  6. Monitoring Budget
  7. Preparation of Payment Application, certification and valuation of construction work
  8. Assessment of variations
  9. Dispute resolution
  10. Preparing feasibility studies
  11. Cost control
  12. Value estimation
  13. Advice on cost limits and budgets
  14. Whole life cycle costing
  15. Valuation for insurance purposes
  16. Project management
  17. Advice on contractual disputes
  18. Preparation of final account

Professional duties[edit]


  1. Provide procurement and contractual advice
  2. Provide 'Order of Magnitude' costs for construction projects
  3. Refine, monitor and control costs during design development
  4. Prepare contract documentation

Tender review[edit]

  1. Identify cost-risks in tender returns
  2. Prepare tender reports
  3. Recommend preferred tenderer
  4. Estimates tenure of the project

Notable Quantity Surveyors[edit]

See also[edit]