670.56. Subject to section 670.58, a builder is entitled to a rebate determined in accordance with section 670.57 if(1) under an agreement, evidenced in writing, entered into between a particular person and the builder of a residential complex, other than a single unit residential complex or a residential unit held in co-ownership, or an addition to it, the builder makes to the particular person(a) an exempt supply by way of lease of the land forming part of the residential complex or an exempt supply of such a lease by way of assignment, and
(b) an exempt supply by way of sale of all or part of the building in which a residential unit forming part of the residential complex or of the addition is situated;
(2) the builder is deemed under section 225 or 226 to have made and received the supply of the residential complex or of the addition after 31 December 2007 as a consequence of(a) giving possession of the residential unit to the particular person under the agreement, or
(b) giving possession of a residential unit forming part of the residential complex or of the addition to a person other than the particular person under an agreement referred to in paragraph 1 entered into between the other person and the builder;
(3) it is the case that(a) the builder and the particular person entered into the agreement before 3 May 2006, or
(b) the builder and a person, other than the particular person, before 3 May 2006, entered into an agreement referred to in paragraph 1 in respect of a residential unit situated in the residential complex or in the addition that the builder is deemed to have supplied under paragraph 2 and that agreement was not terminated before 1 July 2006;
(4) the builder is deemed to have paid tax provided for in section 16 in respect of the supply referred to in paragraph 2;
(5) the builder is not entitled to claim an input tax refund or a rebate, other than a rebate under this section or any of sections 378.8, 378.14 and 670.28, in respect of the tax referred to in paragraph 4; and
(6) the builder is entitled to claim a rebate under subsection 1 of section 256.73 of the Excise Tax Act (Revised Statutes of Canada, 1985, chapter E-15) in respect of the residential complex or of the addition.