Needs in the living environment change over time, depending on the personal life situation. What innovative business models are there to meet changing needs? One approach that has become established in other industries is pay-per-use. Here, products are not sold, but services are charged according to use. For example: number of pages printed vs. printer, number of coffees brewed vs. coffee maker, amount of compressed air used vs. compressed air system, etc. This allows users to flexibly access infrastructure without having to purchase it themselves. These business models have the potential to take on a pioneering role in terms of sustainability. Durable products become a competitive advantage and incentivize the development of low-consumption products, as these costs are often borne by the provider. But are such models even in demand in the residential environment? What are the technological possibilities?