Comfort, health, and control - the technological advancements in housing during the early decades of the 20th century cater to these needs. The new building technology influences the design, aesthetics, and perception of structures. Not least due to the emergence of electricity, innovative architectural solutions became possible: climate control of indoor air allows for large windows and flowing floor plans; automatically retractable windows open the house to the garden; passenger and service elevators enable the reception of guests even on the rooftop terrace; centrally regulated speakers can transform any room into a music room; telephone connections for internal and external calls indirectly enhance the separation between the areas of the household and those of the staff. The equipment of a house becomes a topic of conversation and a status symbol.