The excavation will descend over 50 feet below the surface say reports, deeper than the height of nearby houses, and will feature a 45-foot swimming pool, hot tub, sauna, massage room, ballroom, covered courtyards, staff accommodation, parking, a turning circle and car lift.
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The body of a 15-year-old boy has been recovered from the River Thames after he was spotting in difficulties in the water.
A woman and a boy have been killed after a car police were pursuing crashed into a family.
A 23-year-old man has died after being injured in an altercation inside a minicab.