English: Langenhoven Park is a suburb situated north-west of Bloemfontein, Mangaung. It started as a garden suburb but is increasingly characterised by town house developments. The increase in impervious surfaces contributes to the amount and speed of storm water runoff. The storm water runoff negatively affects the groundwater levels. As an arid country, South Africa cannot afford to lose water, albeit on the surface or as groundwater. Recent literature regards the treatment of storm water at source as the best solution. This article examines the role of legislation in dealing with storm water and how to treat storm water as an asset, and not as a problem. Storm water in Langenhoven Park needs special attention with regard to all the hard surfaces in recent residential developments.