East lodge (Logan’s Lodge), Drenagh Demesne, 38 Broad Road, Limavady, Co Londonderry

East Lodge, known as Logan's Lodge, at Drenagh Demesne is a neat late Georgian gate lodge with gothick overtones, constructed between 1820 and 1839. It contrasts markedly with the neoclassical style of the adjacent entrance gate piers.

The lodge itself is built of pink sandstone ashlar and comprises a single storey in T-plan form with slated roofs that are hipped and faceted over a canted gable of quasi-gothic character. Twin-light pointed windows with diamond-pane leaded lights are set in plain broad square-headed surrounds, neatly moulded and painted white. The walls rise from a low projecting plinth and merge into the roof edge, which is masked by a half-round gutter. The ridge and hips are tiled with conventional tiles, while those of the canted bay employ imbricated or overlapped narrow flat tiles similar to details seen at outhouses of Streeve House. A single low chimney stack carries two decorative pots. The lodge has been extended in length, with these additional walls rendered smooth. A small rear extension with outhouses has been added, faced with crudely built sandstone towards Broad Road and connected to the main house by a trabeated opening. The plinth entrance door is positioned in the angle of the T. The lodge sits within the imposing gates and railing and is surrounded by a well-tended garden.

The entrance gates and screen form an imposing composition set back in an elliptical sweep. Four tall square sandstone piers are panelled on each face with bands of vertical fluting beneath square-headed copings. Between the piers runs a low wall which diminishes as the ground rises, fitted with simple cast iron or wrought iron railing approximately 150 millimetres high topped with pikes. The gates between the central piers are slightly more elaborate, featuring a curved dipping top rail. The width between piers is approximately three metres. The neoclassical style of the gates contrasts deliberately with the gothic character of the lodge.

The Ordnance Survey Memoir records that "a handsome new entrance was built by Mr McCausland on the Coleraine Road in 1830, and from it the avenue now winds gracefully to the house." This dates to a period when Robert McCausland was considering designs by architect John Hargrave for a new Drenagh, which designs incorporated canted bays. It is reasonable to assume that the east gate lodge was the first element of this scheme to be realised. Following the deaths of both owner and architect in the early 1830s, this lodge and the Robinsonian approach to avenue layout and demesne landscaping represent the only parts of the comprehensive new design that were built, though the realignment of the road around Drumachose old church occurred later.

Historically, the lodge functioned not merely as a gate lodge but as a schoolhouse for housekeeping, run by the gate-keeper's wife with assistance from the Misses McCausland. The mistress received extra payment for these teaching duties, as recorded in the Ordnance Survey Memoirs.