However, security concerns should be seriously considered in the location of housing, and in protective walls and security guards. More and more expatriate business executives are leasing compound housing, as these arrangements are more modern and secure. Water and 220 volt 50 Hz single phase and three phase electricity are available. The British three blade plug is used widely. Interruptions of electrical power supply frequently occur, including cuts in industrial zones during evening peak hours.
Most housing has attic reserve water tanks.
Permanent or long term residents should consider purchase of standby electrical generators as electricity demand often exceeds generating capacity with frequent interruptions or brown outs. Bottled LPG is available, but supply cannot always be guaranteed. Adequate medical services are available in Nairobi. Malaria is not prevalent in high elevations, but precautions must be taken in lower areas, especially in the coastal regions. Residents should follow a strict sanitary regime in washing and preparing food.