Originally Posted by ReelChief
With your point, about the left luggage being adjacent to the arrivals lounge, does that imply that one does not have to go out of the transit area to check in the luggage. A secondary question is does it make a difference if we check the single piece of luggage we take to CAI all the way through to CPT and then want to add to it with the 2 pieces we pick up from left luggage at LHR?
Further to SchmeckFlyer's reply, both the left luggage and the Arrivals Lounge are landside (same at T1). It's only the departures lounges that are airside.
I don't think that adding further pieces of checked baggage is a problem. I have done that myself.