By  ANNAMARIA ANDRIOTIS http://online.wsj.com/article/SB10001424052702304526204579099312415627006.html?mod=WSJ_3Up_RealEstate There have been 12 land sales across all areas of Greenwich, since the beginning of the year…ranging in price from $420,000 on Bruce Park Ave, to $3,700,000 at 12 Flagler. Most with great central Greenwich locations (no wonder here)There are also 13 in contract status – from accepted offer to executed…