* 93,000 teachers qualify for a London allowance - either inner, outer or fringe
* The cash is in recognition of higher living costs in the capital.
* How much extra teachers receive depends on location: Inner London and six outer London boroughs get pound;3,000 extra this year, pound;3,105 next year; the rest of outer London - pound;1,974 this year, pound;2,043 next; fringe - pound;765 rising to pound;792 next year.