CSV Make a Difference Day is the nation's biggest single day of volunteering.
Although most of the events are taking place today (Saturday 27th October), there are also special volunteering initiatives throughout the next week.
In addition to the project in Wembley, Londoners will also be:
- Helping plant spring bulbs and mow lawns on the Thames View Estate in Barking.
- Making over a garden in Wandsworth.
- Creating artworks to display on the wall of a recently-built community garden in Newham.
- Baking cupcakes for elderly people in Camden.
More top news
Police arrived at the 73-year-old's home after Alfie chased a delivery man.
Officers believe the three assaults are linked and are appealing for information about the suspect.
Nine addresses in Lewisham were searched and 13 arrests made early on Tuesday morning in a planned, intelligence-led operation.