The London stock market closed higher on Thursday, with FTSE 100 up 15.02 points, or 0.28 percent, at 5,412.88 points. Property companies performed best. Land Securities Group rose 4. 26 percent, followed by Hammerson with a rise of 3.97 percent, while British Land rose 3.25 percent. BT was the biggest loser, falling 1.6 percent. 