In the present study, the author elucidates the history of the appearance of the contract of sale-purchase of the real estate under construction in the usual civil legislation of the Republic of Moldova. Or, by implementing this institute, rarely encountered in national systems of continental law, the Moldovan legislator comes to end the abuses of housing companies, which over the past two decades, using the principle of contractual freedom have taken advantage of the old artificial contract construction „contract on investments in constructions ”and, as a result, many individuals-investors lost their sums invested in housing construction due to the insolvency of these companies.