When will Brent Central, Hammersmith, the City of London and the London constituencies declare results of the 2015 General Election vote?

Emma Haslett and Billy Ehrenberg

They say the election will be won or lost on just a few marginal seats - but nowhere is this more true than London, the seat of power.

Read more: Regional roundup: Everything you need to know about your constituency

Among the key marginal seats are Brent Central, declaring at 3:00am, one of the most diverse places in the UK, where Labour and the Lib Dems are jostling for power. In Hammersmith and Fulham, which declares at 4:00am the Conservatives are fighting to wrestle back power from Labour, which won last time with a margin of more than seven per cent. And in Ealing Central and Acton, incumbent Conservative Angie Bray is fighting against Labour candidate Rupa Huq - sister of TV golden girl Konnie - although we won't find out who's won until 5:00am.

Lest we forget, the capital is also home to the UK's most marginal constituency: Hampstead and Kilburn. Last time, Labour's Glenda Jackson clinched it by 42 votes.

Tap or click on the constituencies on the map below to find out their vital statistics, including who's standing, when they declare and what happened last time.

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