the royal borough of kensington and chelsea, and a tenth in camden. in fact, an awful lot of this property is within a mile of buckingham palace, so there really is quite a concentration, right in the heart of the city. the o2 arena will reopen from 10 o'clock this morning after having to close following damage caused during storm eunice. the greenwich landmark was evacuated on friday last week as gusts of up to 80 miles per hour shredded the roof. the 02 said that they had carried out rigorous safety checks and deemed the venue "safe, secure and structurally sound". workers in london put in over £7 billion worth of unpaid overtime last year, that's according to analysis by the trades union congress. the findings — published today — also suggests that almost a fifth of londoners did unpaid overtime, averaging around 8 hours a week. if you're heading out on public transport this morning,