Thanks BAS
Here goes witha descriptino of the works:
The existing incoming main is located in the garage I'm not sure on type.
The existing 'fuse unit' is old and has about 4 fuses in it currently, one of which has three circiuts on it!!
The cable route to the house (a three bed bunbalow) is underground via a circular pipe which I assume comes up in the corner of the house, adjacent to the garage, inside the cavity and into the loft where it is distributed around the bungalow.
The house has the standard circuits, power, lighting, cooker plus a warm air blower unit which blows though channels in the flooring.
I'm not 100% sur eif any of this requires re-newing but it should be checked and ok'd where appropriate.
The new works consist of:
Moving the consumer unit inside the house, this will require new tails from the meter going through the underfloor channel and across the loft to the new location (approx 15-20 metres). The CU should be up to date and include enough circuits for the original plus exterior lighting, 2no showers, alarm, heating to new conservatory plus any others required.
All existing circuits require moving to the new location (should be enough slack already!!)
In the garage another CU will be required for the gargae circuits and external power requirements to the garden.
Obviously with 2no electric showers, cooker, warm air blower and immersion heater the requirements are high but I imagine everything can be accommodated with diversity etc.
Any thoughts are welcome.