Maintenance and safety of property
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1. What are the MBIS and MWIS?

MBIS

Owners of buildings at least 30 years old (except domestic buildings not exceeding three storeys) are required to appoint a Registered Inspector (RI) once every 10 years to carry out the prescribed inspection and supervise any prescribed repair works found necessary to the common parts, external walls and projections or signboards of the buildings once every 10 years.

The inspection must cover the following building elements:

  • External elements and other physical elements;
  • Structural elements;
  • Fire safety elements;
  • Drainage systems; and
  • Identification of unauthorized building works (UBWs) in the common parts of the building, on the exterior other than the common parts of the building (such as external wall, roof or podium, yard or slope adjoining the building), or on the street on which the building fronts or abuts.

MWIS

The owners of buildings at least 10 years old (except domestic buildings not exceeding three storeys) are required to appoint a Qualified Person (QP) to carry out the prescribed inspection and supervise the prescribed repair works found necessary to all windows of the buildings once every five years.

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