This flat fire in Fulham at the end of last year was dealt with by London Fire Brigade (LFB).
It involved rescues and evacuation of occupants from surrounding flats. It shows that fires can spread beyond one compartment and the value of a fire risk assessment for the building as a whole.
https://www.london-fire.gov.uk/incidents/2019/october/flat-fire-fulham/
For fire risk assessments In Fulham please visit:
http://www.whalefire.co.uk/london/fire-risk-assessments-fulham.aspx