If you have a 6 room house plan.
Living Room + Kitchen in the middle
Two bedroom on the left
On the right you have a bedroom + (mech/laundryroom+bathroom+hallway).
Then you can just run circuit to each room. 20A each.
(The kitchen might need more than just 1 circuit)
(The mech room might need one for each appliance)
And then a shutoff for the entire house.
You can run flexible conduit from the breakerbox to each room. and also pull the right gauge wires.
You can buy and prep all the outlets + switch + sockets.
All that the 'official' electrician have to do is connect the wires and then the power company has connect you to the grid.
On a different note. I like using different
water circuit for the laundry room/kitchen/bathroom, with pex manifold piping.