Section 18A of the Principal Act is amended as follows:

(a) by omitting the definition of commencement of building from subsection (1) and substituting the following definition:

commencement of building means the date of completion of the laying of the foundations for the building or, if no foundations are to be laid, a date determined by the Commissioner;

(b) by omitting from subsection (2)(a) "1 July 2014" and substituting "7 November 2013";

(c) by omitting from subsection (2)(b)(ii)(A) "30 June 2014" and substituting "7 November 2013";

(d) by omitting from subsection (2)(b)(iii)(A) "30 June 2014" and substituting "7 November 2013";

(e) by inserting after subsection (2) the following subsection:

(2A)  If satisfied there are good reasons to do so and if a request by the applicant is made before a decision on the application has been reversed or varied under section 23 , the Commissioner may –

(a) extend the period referred to in subsection (2) for the commencement of building notwithstanding that that period has expired; or

(b) extend the period referred to in subsection (2) for the eligible transaction to complete notwithstanding that that period has expired.