Aft cabin motor yachts are powerboats in which an enclosed cabin occupies the full beam of the hull at the stern — the space that on a conventional layout would be an open cockpit or swim platform deck. The aft cabin adds a guest or owner stateroom at the same level as the main deck, and the primary outdoor relaxation area moves to a sundeck on the cabin roof. The configuration is well established in European production motor yachts from approximately 10 to 18 metres.
The practical advantage is accommodation volume: an aft cabin at full beam can contain a double berth, an en-suite heads compartment, and reasonable stowage in a space that an open cockpit would leave as recreational deck area. The trade-off is that the aft cabin placement pushes the engine room amidships, which requires shaft drives rather than the pod or sterndrive installations that suit a more open stern arrangement. This limits manoeuvrability compared with pod-drive alternatives. A second configuration has emerged more recently — the beach club variant — in which the aft cabin opens to a water-level terrace via large sliding doors, functioning as a social and leisure space rather than a conventional sleeping cabin.
Construction is GRP for production boats; aluminium is used on custom and semi-custom builds where layout flexibility or northern-Europe seakeeping requirements are priorities. The superstructure including the aft cabin is moulded separately and joined to the hull. Propulsion is inboard diesel with shaft drive on traditional aft cabin designs; some builders have integrated pod drives into compact stern arrangements where the hull form permits.
