"Temporary building" means any building or structure constructed of short-lived materials or permitted to be used by the competent authority or Commissioner of Building Control for a period not exceeding 36 months or such other period as may be prescribed.

The following temporary buildings do not require a permit or approval from the BCA:

1. any worker's quarters, site office, store, builder's shed or other sheds required in connection with any building works relating to permanent buildings;
2. any show-flat or show-house;
3. any stall or shed of light weight material within any premises used for the purpose of holding a trade fair, fun fair or any exhibition.

You shall display the permit on the completed building. The professional engineer submitting the application shall also submit to the BCA the relevant certificates of supervision upon completion of works.

You must demolish the building without delay and keep the BCA informed.

No. You cannot extend the permit when it expires. You must make a fresh application if you need to retain the completed building for an extended period.

No. You do not need further permission to occupy the building upon completion of works. However, the professional engineer must submit to the BCA certificates of supervision before allowing you to occupy the temporary building.

No. The Temporary Building Regulations only allow such applications to be submitted by a professional civil or structural engineer.

You need to obtain a TOP for the use.