<prompt> Translate the following text to EnglishKwa sababu ya upungufu wa maji na ukosefu wa uwanja wa ndege, mwendo wa ujenzi na mabadiliko umewekwa ndani ya mipaka ya busara, na kanuni zinaamuru, kwa mfano, kwamba majengo hayawezi kuongezeka zaidi ya ghorofa nne.  <response>: Constrained by the limited water supply and the absence of an airport, the pace of construction and change have been kept within reasonable bounds, with regulations stipulating, for instance, that buildings may not rise higher than four storeys. 