English translation: Pre-sale, prior to completion of construction
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Explanation: Given your previous question, I assume this is a building that is sold before the contractor has finished building it. See, for instance:
Aztec Group: Services
... whole. Pre-Sales, We arrange the advance purchase of income producing
real estate prior to completion of construction. Investment ... www.aztecgroup.com/services.htm
File Format: Microsoft Powerpoint 97 - View as HTML
... Pre-Sales: 73% of all units have been sold prior to commencement of construction (1996-2001). 85% of all units have been sold prior to completion of construction. ...