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UBWs in sub-divided flats

What are subdivided flats?

Subdivision of a flat into the commonly-known "subdivided units" generally refers to the subdivision of a flat as shown on the original approved plan of a building into two or more individual rooms.

Associated Building Works

Removal of the original non-structural partition walls
Removal of the original non-structural partition walls
Erection of new non-structural partition walls, installation of new toilets and kitchens
Erection of new non-structural partition walls, installation of new toilets and kitchens
Alteration or addition of internal drains
Alteration or addition of internal drains
Removal of the original non-structural partition walls
Removal of the original non-structural partition walls
Addition of door openings or ventilation openings
Addition of door openings or ventilation openings

Potential Impacts of Associated Building Works

The building safety and environmental hygiene may be adversely affected if these associated building works are not properly carried out.

  • Addition of unauthorised door openings which obstruct means of escape
  • Addition of openings for ventilation affecting the integrity of fire resisting construction
  • Improper drainage works causing water seepage
  • Overloading of the building due to addition of partition walls and thickened floor screeding
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