Approved document F, Ventilation, suggests that a ‘habitable room’ is:
Whereas an ‘occupiable room’ is:
‘…a room in a building other than a dwelling that is occupied by people, such as an office, workroom, classroom or hotel bedroom, but not a bathroom, sanitary accommodation, utility room or rooms or spaces used solely or principally for circulation, building services plant or storage purposes.
The English Housing Survey Housing Stock Report, 2014-15, prepared by the Department of Communities and Local Government, defines a habitable room as:
'A room in the dwelling that offers ‘living accommodation’. Includes bedrooms, kitchens if there is additional space to provide a dining area large enough to accommodate a table and chairs (typically an area of 2m² in addition to kitchen space). A fully converted room in the loft space is classified as a habitable room even if it can only be reached by a fixed ladder or unsafe staircase.'
 Related articles on Designing Buildings Wiki
Featured articles and news
What is Modernism?
Modernist architecture and its many international variations explained.
BRE support Europe-wide strategic heating plans for local and national authorities.
Work set to begin on 'one of America's greatest parks', which will be 10 times bigger than Central Park.
One of our most popular articles - RSHP's Mike Davies writes about the concept design process.
As Cuba mourn the death of Castro, major renovation of this symbolic landmark may be a reflection of the country's fresh start.
How cannabis plants are used to create an alternative building material with plenty of advantages.
What does Mayor Sadiq Khan's first policy statement mean for London's infrastructure?
Bjarke Ingels Group announced as winners of design competition for new residential landmark in Amsterdam.
Designing Buildings Wiki has reviewed a well-designed and researched set of architecture city maps.
Designing Buildings Wiki attended the second annual Building Live conference, tackling the challenges facing construction.