A new design was introduced under the same model name of Lagoon 42 in 2016, but it is now usually referred to as the Lagoon 42-2 or Lagoon 42-2016 to differentiate it from the earlier 1990 design.[1][2][5][6][7]
The boat has a draft of 4.42 ft (1.35 m) with the standard twin keels.[1][2]
The boat is fitted with either twin British Perkins Engines or Japanese Yanmardiesel engines of 27 hp (20 kW) each, for docking and maneuvering. The fuel tank holds 80 U.S. gallons (300 L; 67 imp gal) and the fresh water tank has a capacity of 160 U.S. gallons (610 L; 130 imp gal).[1][2]
The design in "owner's" configuration has sleeping accommodation for six people, with a double berths fore and aft in the port hull and aft in the starboard hull. There are two heads, one amidships in the port hull and one in the starboard hull bow. The charter version adds an extra cabin in the starboard hull bow and moves the head to amidships. The main salon has a U-shaped settee, plus there is a U-shaped settee in the cockpit. The galley is located on the port side of the salon. The galley is L-shaped and is equipped with a stove, an ice box and a double sink. Cabin maximum headroom is 75 in (191 cm).[1][2][10]
The design has a hull speed of 8.33 kn (15.43 km/h).[2]