Rules & Regulations
(a) Building Structure/Space Considerations
Concerning the building structure/space considerations, the building owner/occupant is advised to make reference to approved plans of the parent building and to consult building professionals to ensure that the existing building is structurally safe to support the additional system components, and that the prescribed windows as well as the means of escape including any roof designated as refuge floor thereof are not obstructed. Where alterations and additions to the existing building structure are involved to support the additional system components, prior approval and consent from the Building Authority under the Building Ordinance and Lands Department are required. An Authorized Person (AP) (Architect, Engineer or Surveyor registered under the Buildings Ordinance) and the respective District Lands Offices should be consulted in case of doubt.
Some relevant ordinances and documents:
Other relevant pages on Buildings Department website:
(b) Plumbing/Drainage Considerations
Retrofitting a solar water heating system may sometimes involve alteration of the existing water supply system. Prior approval of any such alteration shall be sought from the Water Supplies Department.