There are also two by-elections in Hammersmith and Fulham
Voting is underway at polling stations across the borough, which will be open until 10pm.

Among those making an early visit to Askew Road Library polling station were Lady Crumble, pictured above, tweeted by Westie @Westie_63.
If you are not sure of the location of your local station, you can find it by entering your postcode here.
And if you cannot find your poll card, don't worry - you do not need it to vote as long as your name and address are on the electoral register.
The borough of Hammersmith and Fulham contains two parliamentary constituencies - Chelsea and Fulham, where five candidates at standing and Hammersmith, where six candidates are standing.
There are also two by-elections in Avonmore and Brook Green in Hammersmith and Sands End in Fulham.
The result in Hammersmith is expected between 3am and 4am tomorrow morning while the result in Chelsea and Fulham is expected to follow within the hour.
Hammersmith and Fulham Council says its staff are running the polling stations throughout the borough and counting all votes from the whole of those two constituencies.
Find out more about the elections and what to expect tonight at H&F Council's pages on Elections 2017.
June 8, 2017