Friday 12 July 2013 12.19pm
Picking up the fire safety issue (rather than the letting agent ones) -
Since 2002, there has been a requirement to have an escape window in all habitable rooms above ground floor. These are known as egress windows: the word egress is the opposite of access. Part B of the Building Regulations is specific about what constitutes an egress window : http://www.planningportal.gov.uk/buildingregulations/approveddocuments/partb/
Hope this is helpful.