see
http://www.italymag.co.uk/forums/ita...html#post51957 for the main 'domestic' categories with their Italian designations.
see below for full list with english designations
A/1=Luxury habitation
A/2=Civil habitation
A/3=Economical habitation
A/4=Low cost habitation
A/5=Very low cost habitation
A/6=Rural habitation
A/7=Detatched house
A/8=Villa
A/9=Castles and palaces with artistic and historical value
A/10=Offices and privates studios
A/11=Typical regional habitation
B/1=Colleges, boarding schools, nursing homes, convents, barracks
B/2=Clinics and hospital
B/3=Prisons and borstals
B/4=Public offices
B/5=Schools, scientific laboratories
B/6=Libraries, art galleries, museums, academies
B/7=Chapels and oratories not for public use
B/8=Basement or underground storage spaces
C/1=Stores and shops
C/2=Wharehouses and storage depots
C/3=Laboratories for arts and crafts
C/4=Buildings and premises for sport activities
C/5=Bathing establishments and spas
C/6=Cow sheds, stables, barns and garages
C/7=Closed or open sheds