Dwellings Design and construction 30 Architecture, Domestic 23 Energy conservation 23 Housing 18 Remodeling 17 History 15 Aged 14 Heating and ventilation 11 Maintenance and repair 10 Social aspects 9 Architecture 8 Buildings 8 Environmental aspects 7 Interior decoration 7 Labor and laboring classes 7 Ecological houses 6 Energy consumption 6 Psychological aspects 6 Social life and customs 6 Defects 5 Designs and plans 5 Security measures 5 Air conditioning 4 Architecture and the aged 4 Barrier-free design 4 House furnishings 4 Older people 4 Patients 4 Addresses, essays, lectures 3