After the Second World War, new houses suitable for the middle classes in London tended to be built on infill sites in clusters or terraces, each house having a small garden and space for a car. They were designed to be easy to maintain and often the main living rooms on the ground floor were open-plan. The kitchen was still a separate room, but positioned to allow easy access to the rest of the house and garden. Towards the end of the century it became fashionable to convert former industrial and commercial premises close to the city centre into residential use, as apartments which became known as lofts. They were generally open-plan living spaces, which included the kitchen, with separate areas for bedrooms and bathrooms.