In a ruling made public on Friday, Greece's Council of State effectively lifted the final barrier to a major investment at the site of the capital's old airport at Elliniko.
The decision of the country's highest administrative court deemed as legal the procedures that have been followed to date as regards feasibility studies and environmental issues.
Greek real estate company Lamda Development announced on Wednesday that its board of directors will call an extraordinary general meeting to agree on a share capital increase of up to 650 million euros.
In its announcement, Lamda Development also said the company held talks with its partners of Global Investment Group over the last few months but did not reach an agreement.
Greece's bourse index came down from a six-week high to record moderate losses on Tuesday, but listed companies are mainly focused on the two-day London roadshow they are launching on Wednesday, with the participation of Finance Minister Christos Staikouras on Thursday. That may also explain the fresh slump in turnover on Tuesday.
Chinese company Fosun has agreed to acquire 75 percent of UK group Thomas Cook's tour operations and 25 percent of its airline business for 450 million pounds (497 million euros) while the group's creditors - banks and bondholders - will put up a similar amount to buy 25 percent of the tour business and 75 percent of the airline business.
Banks led the way on Monday at Athinon Avenue, where trade was notably slower due to it being the start of the traditional summer holiday season, while the election frenzy that started on May 27 appears to have subsided. The benchmark edged nearer the 900-point landmark, but the majority of stocks ended up on the losing side.