NKA is a Cost Consultancy Company, which provide full range of quantity surveying services. NKA is owned and operated by Nilan Kellapatha, who is a qualified Quantity Surveyor with over 25 years of experience in the construction industry. He is a full member of the Australian Institute of Quantity Surveyors (MAIQS). Nilan also a registered Tax Agent for the preparation of Tax Depreciation Schedule.


  • BSc(QS) Honours Degree, University of Moratuwa Sri Lanka in 1993
  • Post Graduate Diploma in Construction Project Management, University of Moratuwa Sri Lanka in 2002
  • Diploma of Engineering (Technical – Project Planning and Scheduling), Challenger Institute, Perth in 2011
  • Member of Institute of Quantity Surveyors of Australia (MAIQS)
  • Registered Tax Agent
  • Synopsis;

    • A Professional Quantity Surveyor with 25 years construction industry experience.
    • Extensive experience in preparation of Schematic / Preliminary / Detail / Pre Tender Estimates
    • First Principle Estimating – Labour / Plant / Material / Freight calculations
    • Builders Quantities – Digital Measurement software
    • Preparation of BOQ
    • Project Management
    • Project Planning & Scheduling – MS Project
    • Replacement & Decommissioning Estimates
    • Value Engineering
    • Assessment of construction work / Progress claims / Bank Reports
    • Tax Depreciation Schedules