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TIS (Netherlands)

Mobility and Transport

TIS (Netherlands)


Seconed is a Technical Inspection Service (T.I.S.) that conducts independent assessments of the technical construction quality of structures, including the inspections regarding compliance with the applicable laws and regulations.
In the TIS concept, SECONED performs inspections beginning in the design phase up to and including completion. At the end of the inspection process, SECONED issues a declaration regarding the construction quality. Among other things, this declaration can be used to demonstrate to the following parties that the requested/required construction quality was achieved:

  • Commissioning party of the project
  • T.A. or a financial institution
  • Future owners
  • Insurers (Contractors’ All Risk Insurance, Hidden Defect Insurance, Warranty Insurance)
  • Municipal Building Department
  • SPC validation in PPS projects
  • Other parties concerned


The standard assessment framework for a TIS assignment looks at whether the design and the completed structure are in compliance with the Buildings Decree.  The commissioning party of the TIS can also elect to request individual scopes or add other assessment frameworks. The figure below illustrates the relationship between the standard assessment framework and the individual scopes.

Instead of, or in addition to, the Buildings Decree, other assessment frameworks can be used, such as the requirements from output specification, or a set of standards, guidelines and/or statutory frameworks.
This allows assessment in the following scopes:

  • Health and safety
  • Comfort requirements (acoustics, heating, air quality, air/water tightness, visual appearance)
  • Flexibility
  • Integrated Accessibility
  • Sustainability
  • Energy Performance
  • General Performance
  • Auxiliary Structures
  • Impact on the surroundings