Kuala Lumpur City Hall (DBKL) will launch a programme to clamp down on property owners who make illegal renovation and extension.

DBKL Building Control and Monitoring Department director Alias Marjoh said said the programme aims to ensure that property owners did not make renovation without getting their prior approval.

"Extension work should be undertaken by a contractor registered with the Occupational Safety and Health Department to ensure safety of the building.

"If the extension collapses, the owner can refer to the contractor as it is his responsibility," he told reporters after a conference on Building Control in Malaysia, here today.

DBKL was reviewing and updating the guidelines before implementing the six-months programme.

Alias said home renovation without the approval of local authorities could lead to problems when reselling properties or submitting insurance claims.

Legal action would be taken against house owners who failed to comply with the guidelines beginning from January 1, 2017.