"laverock" was long overall and between perpendiculars, with a beam of and a draught of . displacement of the l-class was normal and deep load. three yarrow boilers fed steam to direct-drive parsons steam turbines which drove two propeller shafts. the machinery was rated at , giving a design speed of . two funnels were fitted. the ship's main gun armament consisted of three qf mk iv guns on the ship's centreline, with 120 rounds per gun, supplemented by a .303 in (7.7 mm) maxim machine gun. the ship carried two twin 21 inch (533 mm) torpedo tubes, and was fitted with rails to carry four vickers elia mk iv naval mines, although these rails were never used. a single qf 2-pounder pom-pom mk. ii gun was fitted from 1916. the ship had a complement of 73 officers and men.