The smaller arches (from No.1 on the Hove boundary running eastwards) could be leased annually by Brighton ratepayers and used in the summer (winter as well if you liked) as 'beach huts'. The bigger and swankier of these private ones were just to the west of the West Pier and the smaller ones to the east.  Many were equipped with electricity, water and drainage however you were not supposed to stay in them overnight. My mother rented No.82, just east of the West Pier and opposite the now-derelict paddling pool, for many years and she had a small fridge and a small electric cooker in hers. The electricity bill from Seeboard ('No. 82 Kings Road Arches') was delivered there.   I remember going down there with her one spring weekend in around 1963 and finding a whole group of Rockers in leather jackets lying on the ground in front of ours - they obligingly moved when we arrived.   Most of these smaller 'beach hut' arches now seem to be derelict which is a pity - put in a bathroom (and some were big enough for that) and you could partially solve Brighton's flat crisis at modest cost!