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Q&As . Minor Works

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  • 1. How many classes of Minor Works are there?
  • There are 3 classes: Class I includes mainly those relatively more complicated minor works; Class II comprises those works of comparatively lower complexity and risk to safety; Class III mainly includes common household minor works.
  • 2. Who should be appointed before carrying out Class I minor works?
  • The owner is required to appoint a prescribed building professional who will submit a notification of commencement of works in the specified form, prescribed plans etc. to the Buildings Department (BD) and supervise the works. The owner is also required to appoint a prescribed registered contractor to carry out such works.
  • 3. Who are the prescribed building professionals?
  • Authorized Persons, Registered Inspectors*, Registered Structural Engineers*, Registered Geotechnical Engineers*. *if required
  • 4. Who are the prescribed registered contractors?
  • Registered General Building Contractors, Registered Minor Works Contractors (Company), Registered Minor Works Contractors (Individual), Registered Specialist Contractors of respective registered category of specialized works.
  • 5. What are the common types of household minor works?
  • Erection/replacement/removal of supporting frames/structures for air-conditioners/water cooling towers, drying racks, canopies, drains, replacement of windows and erection of brick walls, etc.
  • 6. What are the common types of minor works involving the common parts of a building?
  • Repair of external wall rendering /finishes, fence walls, metal gates at the entrance of buildings and removal of UBWs on the common parts of main roof /flat roof/light well of buildings, etc.
  • 7. Is it necessary to appoint registered minor works contractors to carry out common household redecoration works or other very small scale works?
  • Common household redecoration works, such as painting, internal rendering/ plastering and sticking wall-paper are exempted works under the Buildings Ordinance. It is not necessary to appoint prescribed building professionals and registered minor works contractors to carry out such works.
  • 8. Where can owners find the registers of prescribed building professionals and prescribed registered contractors?
  • Please visit the BD's websiteBuildings Department website.
  • 9. When do I have to notify the BD before commencement of Class I and II minor works?
  • The BD should be notified at least 7 days before the commencement of works.
  • 10. When do I have to report to the BD after completion of Class I, II and III minor works?
  • A certification of completion of works should be submitted to the BD within 14 days after completion of works.
  • 11. Do I have to submit plans and obtain the approval of the BD before erection of partition walls?
  • Erection of non-load bearing block walls are minor works, such works may be carried out under the simplified requirements of the Minor Works Control System.
  • 12. How can we retain some unauthorised minor household installations?
  • They may be validated through the Household Minor Works Validation Scheme to ensure they are safe for continued use.
  • 13. What minor household installations are eligible for joining the Validation Scheme?
  • Unauthorised minor household installations erected or completed before 31 December 2010.
  • 14. What types of minor household installations may be retained for use through the Validation Scheme?
  • Air-conditioner supporting frames/structures, drying racks and small canopies.
  • 15.What are the criteria for unauthorised air-conditioner supporting frames for joining the Validation Scheme?
  • The criteria are: Projection ≤ 600mm; Weight of the cooling plant ≤ 100kg; and no projection over street or common part of building if the highest point of frame ≤ 3m from ground.
  • 16. What are the criteria for unauthorised drying racks for joining the Validation Scheme?
  • The criteria are: Projection ≤ 750mm; and No projection over street or common part of building if the highest point of rack ≤ 3m from ground.
  • 17. What are the criteria for unauthorised canopies for joining the Validation Scheme?
  • The criteria are: Projection ≤ 500mm; No concrete; and No projection over street or common parts of the building if the highest point of canopy ≤ 3m from ground.
  • 18. What kind of financial support is available to owners for carrying out minor works for building maintenance and repair?
  • Owners who have financial difficulties may seek assistance from the BD’s “Building Safety Loan Scheme”. For details, please call 2626 1579.
  • 19. Is it possible to appoint a Registered Inspector (RI) who is not an Authorized Person to co-ordinate and supervise Class I minor works?
  • If the works are the prescribed repair works or any associated demolition works under the Mandatory Building Inspection Scheme, an RI may assume the role of an Authorized Person in respect of such works.
  • 20. What would be the consequence if a Registered Contractor carried out minor works but did not submit the required documents in accordance with the simplified requirements?
  • The completed minor works would be regarded as unauthorised building works (UBW). The BD may order the owner to remove or modify the UBW to an acceptable standard. The contractor would have committed an offence and shall be liable on conviction to a maximum fine at level 5 (HK$50,000 at present) and may be subject to disciplinary action. The maximum penalty would be the removal of its name from the relevant register permanently.