Spanish builder Metrovacesa said it agreed to sell its 27 percent stake in French peer Gecina to a group of investors as it unwinds a costly acquisition made during Spain's housing boom in an effort to pay down debt. _0"> The buyers - Norges Bank, Credit Agricole Assurances, U.S. fund Blackstone and Ivanhoe Cambridge - will pay 92 euros each for the 16.8 million shares, Metrovacesa said, implying a deal value of 1.55 billion euros ($2.11 billion). Gecina shares closed up more than 4 percent at 110.95 euros on Friday. Metrovacesa said the stake sale price represented a 10 percent discount to net asset value. The transaction is expected to be completed by the end of September, Metrovacesa said in a statement late on Friday, provided "certain conditions" were fulfilled relating to the Spanish group's financial restructuring. Gecina welcomed the agreement, saying in a statement that it would "make it possible to continue putting in place a new sharehold