Most definitely. This is a legal requirement for commercial premises, and certain other premises under the Regulatory Reform (Fire Safety) Order 2005 and indeed any regulations made under it. It is, of course, for the safety of the occupants of the building so that consideration has to be given to fire exits, fire extinguishers, and so on. There is also an argument that any buildings insurance may be invalidated by the lack of a fire risk assessment in the case of a fire at a property. The bottom line is that anyone owning a property is committing a criminal offence if there is not a fire risk assessment in place.