Firefighters were called to a shed alight at an allotment on Long Drive in Ruislip on Monday 28 July.
London Fire Brigade said their Control Officers received the first of 14 calls at 16:57. Two fire engines from Northolt Fire Station were sent to the scene.
There were no reports of any injuries.
Footage sent to Harrow Online showed a large amount of smoke rising from the fire.
The cause of the blaze is under investigation.
Chris Mitchell is the founder and editor of Harrow Online, Harrow’s leading local news platform.
He launched Harrow Online in 2010 as a Facebook page sharing local news and information. Since then, it has grown into a trusted source for breaking news, crime, council decisions, planning, transport, business and community stories across the borough.
Harrow Online reaches hundreds of thousands of readers each month and has a social media audience of more than 200,000 followers.
For news tips, press releases or enquiries, contact Chris at info@harrowonline.org.
