The results for the Mayoral and Assembly elections down to constituency level are available (including turnout and spoils etc). Please note that due to boundary changes, 2016 ward data is not comparable with previous years' data.   More info on the 2016 elections can be found on the London Elects website.

...in some turnout figures. The spreadsheets above all contain the correct revised figures. The spreadsheet contains a summary of all the London elections results since 2000. This includes Mayoral, Assembly list and Constituency member election results. In the 2000 election, only data for constituencies was collected, so no borough or ward breakdowns are available for that year. Data shown includes: the winner in each area (the candidate or party with most votes). This does not include second preference votes in the Mayoral election, the winning majority (the highest number of votes minus the second highest number of votes), the percentage turnout...