Best cost effective option?

[Rosco22]

Well with 300 down lights bout 160 power points and 2 double garages inc 3 phase commandos for machinery and a games room, gym and underground heating pump system the 3 phases are justified.

 

[shocking_eg]

Amen !

Just what I was talking about

 

[shocking_eg]

And I'm sure the house owners not going to be bothered about paying for the 3phase tariff

 

[Adam W]

TBH, with this list, do you even need 3ph anyway????? A premium billed expense when all you've got is probably coped with happily on an 80A single once you've done some diversity calcs.

That list just came off the top of my head. My point was there will be a much higher load on the ground floor than the other floors which will most likely just use lighting, occasionally appliances such as hairdryers and televisions, maybe heated towel rails, whereas the ground floor will have all the entertainment stuff, which is unlikely to be used at the same time as the stuff in the bedrooms.
As mentioned we're talking about stuff like swimming pool equipment, sauna, hot tub, air con condenser etc, some of which might need 3 phases to run anyway.

 

[rattlehead85]

Ok just realised having re-read the OP this is one house. I was under the impression it was a multiple occupancy dwelling with individual flats/ rooms per floor.Placing the ground floor on one phase would certainly not be ideal for correct balancing with it being one house.

 

[Rockingit]

Well with 300 down lights bout 160 power points and 2 double garages inc 3 phase commandos for machinery and a games room, gym and underground heating pump system the 3 phases are justified.

So NOW you tell me.........