19 The power to require the provision of public open space (or payment in lieu) can be traced back to Section 569B(8A) of the Local Government Act 1958, which came into force on 1 June 1967. Like the present provision, this requirement could only be imposed upon a subdivision. However, the Local Government Act 1958 also had a provision which allowed for the imposition of a public open space requirement upon the construction of a building which, in the opinion of the Council, is likely to be used and occupied for more than two flats or apartments; see section 569H. This provision was inserted on 27 May 1970, presumably to prevent developers or flats avoiding the payment of a public open space contribution by simply renting the flats and not subdividing them. When the Subdivision Act was passed in 1988, section 569H was replicated in section 21A of the Building Control Act 1981. In turn, this provision operated until the enactment of the Building Act 1991. For some reason, which is not explained, the provision was not continued under that Act. One explanation is that the Parliament simply overlooked the provision. Another explanation, which I prefer, is that Parliament deliberately decided that the provision was no longer appropriate or necessary.