Queenslanders, post-war cottages and 1960s to 80s brick homes were wired when a room needed a lamp and a radio. The same room now runs a TV, a console, two chargers and a heater.
There's a hard limit on how many outlets share a circuit. AS/NZS 3000 allows 10 power points on a 20 amp circuit. Glenn counts what's already on yours before adding anything, and if it's near the limit the new outlets go on a new circuit.
Rooms that usually need the most. Kitchens want benchtop outlets spaced along the work surface so the kettle and the toaster aren't sharing one. Bedrooms want one each side of the bed. A home office is worth putting on its own circuit.
Your wall decides how the cable runs. With ceiling access, cable drops down inside the wall and you never see it. Solid brick or concrete with no cavity sometimes means surface conduit, and Glenn tells you that before he starts.
