Four fire trucks and around 25 firefighters were called to a fire in Kymberley Road at today’s 3.31 am (April 24).
When the crews arrived, the flames were visible outside the underground parking.
Firefighters quickly brought a small fire on the lower ground floor under control.
A man was treated at Burns’s scene by firefighters before being hospital tasks for the London ambulance service.
Harrow, Northholt and Wembley Fire Stations attended teams.
The incident was declared at 4.38 am
The cause of the fire is now under investigation by fire officers and the Metropolitan Police.
A spokesman for the London Fire Brigade said: “Four fire trucks and around 25 firefighters were called to a fire in an underground parking lot over a block of floors in Kymberley Road in Harrow.
“Upon arrival, flames were outside the underground parking.
“The crews extinguished a small fire on the lower ground floor.
“A man was treated by burns fire teams and was tasks for the hospital for the London ambulance service.
“The 999 control officers of the Brigade received their first call alerting them on the fire at 0331, they deployed the teams from the Harrow, Northholt and Wembley Fire Stations.
“The incident ended by 0438”.
The cause of the fire is under investigation by the fire investigators of the Brigade and with the Police.