Unusual Swimming Pool

Private pools are usually smaller than public pools, on average 12 × 24 ft (3.7 × 7.3 m) to 20 × 40 ft (6.1 × 12 m) whereas public pools usually start at 80 ft (24 m). Home pools can be permanently built-in, or be assembled above ground and disassembled after summer. Privately owned outdoor pools in backyards or gardens started to proliferate in the 1950s in regions with warm summer climates, particularly in the United States.
Private pools are increasingly a feature of homes in greater latitudes. For example, in London many larger homes are now refurbished with indoor pools, usually in the basement or in a conservatory. In some European cities, including Munich, it is relatively common for people living in older properties to convert existing internal motorcar garages into indoor pool areas.