Thank you for the replies to my request for historical information on the Imperial Buildings in Llandudno Junction, the site of the Crosville garage. I have found an interesting link to two letters suggesting that the previous occupier was "Electricity Distribution of North Wales and District Limited". The letters were sent to a customer in Pwllheli, from the electricity company whose address was "Imperial Buildings, Llandudno Junction, N.Wales". The letters were dated 24th & 27th July 1926. I will keep on digging...!