You talked about cameras - how will they be powered? Do you need an electrical outlet for each camera? An Ethernet jack?
Look into 'Power over Ethernet', where DC power is provided by the Ethernet cable. It requires PoE cameras and extra equipment at the switch, but eliminates AC power runs for the cameras.
When running conduit between floors or attic to under house, consider using as large a conduit as practical to make it easy to add/replace cables. Mice like wires . . .
Not automation related:
Do you want to plan for a burglar alarm? You can run an unconnected cable from the attic into the wall at a convenient location(s), even if you don't want it now.
Assuming you live in the U.S., city building codes and National Electric Code will specify minimum electrical wire size, outlet spacing/requirements, and requirements for wet locations like bathrooms.
Consider using 'arc fault' circuit breakers if they are not already required by code. Intermittent connections are a serious source of fires.
If you want to install ceiling fans (now or in the future), use 'Fan Rated' junction boxes. Not needed for all fan sizes, but nice to know the fan weight won't limit your choices.
Garage - do you want to put one (or two) EV charging stations in it?
You talked about cameras - how will they be powered? Do you need an electrical outlet for each camera? An Ethernet jack? Look into 'Power over Ethernet', where DC power is provided by the Ethernet cable. It requires PoE cameras and extra equipment at the switch, but eliminates AC power runs for the cameras.
When running conduit between floors or attic to under house, consider using as large a conduit as practical to make it easy to add/replace cables. Mice like wires . . .
Not automation related:
Do you want to plan for a burglar alarm? You can run an unconnected cable from the attic into the wall at a convenient location(s), even if you don't want it now.
Assuming you live in the U.S., city building codes and National Electric Code will specify minimum electrical wire size, outlet spacing/requirements, and requirements for wet locations like bathrooms.
Consider using 'arc fault' circuit breakers if they are not already required by code. Intermittent connections are a serious source of fires.
If you want to install ceiling fans (now or in the future), use 'Fan Rated' junction boxes. Not needed for all fan sizes, but nice to know the fan weight won't limit your choices.
Garage - do you want to put one (or two) EV charging stations in it?