Consider using water saving taps and appliances. See the Waterwise web site and the page Water Conservation
Both hot and cold water normally reach the kitchen and utility areas via 15mm copper or push-fit plastic pipework. The cold water should be off a rising main (i.e. directly from the mains rather than [...]
Potable water is usually supplied by the local water company to a stop tap in the road adjacent to your building site. They will charge for this connection. It is then your responsibility to run a supply pipe from that stop tap to your building.
If you have a private water supply then other [...]
See the government web site on Building RegulationsThese are the legal regulations which govern how a house is constructed. (not to be confused with Planning Permission which is about whether you are allowed to build the house at all or what it might look like) see Building Regulations)
Building Regulations deal with whether the building is built properly and is safe and energy efficient etc. more+/-»
They are not to be confused with Planning Consentthe legal basis for being allowed to do some form of development such as building a house. (not to [...]