The first big decision for the movers and shakers in Hampstead and Highgate on leaving the voting booth will be which party to attend.

Heathman learns that Baroness Helena Kennedy, who threw the political equivalent of the Oscar night Vanity Fair party for Labour supporters in 1997, is having a much smaller gathering this year.

Dame Joan Bakewell will be among guests, as will author Kathy Lette, after “ricocheting” around town first.

Kathy plans to start her evening at the Donmar Warehouse to see Dame Judi Dench and comedian Catherine Tate in the political play Vote.

She tells Heathman: “After rubbing shoulder pads with my favourite thesps at the after-party, it’s on to Jemima Khan’s election party for a little light flirtation with Hugh Grant.

“But as Jemima’s friends are a human minestrone of political affiliations, if any Tory crowing kicks in, it’s on to a gathering of my Labour party pals.

“There I’ll hopefully be quaffing celebratory champagne with Helena Kennedy and lovely company.”

Kathy says that she then plans to stagger to the Groucho Club for breakfast to analyse the results with Julia Hobsbawm.