(1) A developer contract is a contract that has as its object the construction or the conversion of a house or of a comparable building and that concurrently entails an obligation incumbent on the contractor to assign to the customer ownership of the plot of land or to establish or transfer a hereditary building right. The provisions of Subtitle 1 apply to the construction or the conversion unless the subsequent provisions lead to a different conclusion. The provisions governing purchase apply with regard to the claim to transfer of ownership to the plot of land or to the transfer or establishment of the hereditary building right.
(2) Sections 648, 648a, 650b to 650e, section 650k (1) as well as section 650l and section 650m (1) do not apply.