Dunraven And Gatepiers, 3 Broomieknowe, Lasswade

Dunraven is a house dated 1887, with later additions. It is a two-story, asymmetrical four-bay house featuring a corner tower and a mix of baronial and classical architectural details. The exterior is constructed from stugged and snecked cream-colored ashlar sandstone, with polished and stugged dressings. A continuous cill course runs along the ground floor, with a band course separating the ground and first floors on the gabled bay to the right. The tower features an ovolo moulding between its ground and first floors and an eaves course with a string course above. Window reveals are chamfered.

The southeast elevation (the main entrance front) is arranged in bays grouped 1-1-2. A pilastered and corniced doorpiece displays a decorative date stone and a swan-necked pediment sheltering an architraved doorway. The door itself is timber-panelled, with a leaded rectangular stained-glass fanlight above. To the first floor, a single window is situated above, and a bipartite mullioned window is to the right of the doorway. A three-light, two-story tower stands in the bay to the left, capped with a conical fish-scale slate roof and weather vane. A blind pedimented square panel is set above at first floor level, to the right of the tower. A coped ashlar wallhead stack includes a blind round-arched panel above. An advanced two-bay gabled wing is positioned on the outer right; each bay has a single window at both ground and first floor levels. Set into a pilastered and corniced surround with a round arched pediment is a gablehead window. A recessed two-story, two-bay later addition is located to the outer right, incorporating a boarded door with a lying pane fanlight above in one bay and a boarded garage door with a narrow window to the left in the remaining bay.

The northwest elevation (the rear) is three bays wide, two stories high, with a lower two-story, two-bay addition to the outer left, with walls continuous with the main block. A tripartite mullioned and transomed stained-glass stair window illuminates the center bay. Below it is a small, barred opening. A bipartite window appears on the ground floor to the left, and a single window is situated above. In the bay to the outer right, a two-story three-light canted window is present, complemented by single windows at ground and first floor levels in the bays of the addition. A later, flat-roofed timber and glass conservatory is slightly recessed to the southwest.

The southwest elevation presents a three-bay, two-story facade; a single window appears on each floor in the right bay. A two-bay gabled wing extends from it, with an attic window and single windows on each floor in the outer right bay of the gable. A coped gablehead stack features ashlar dressings. A conservatory is located in the outer left bay.

The house has two-pane and four-pane timber sash and case windows. The roof is covered with grey slate, and cast-iron rainwater goods are in place. Ashlar coped skews are also present.

Internally, the stair window is both stained and painted with glass. Other details include decorative plaster cornices and friezes, decorative round arched niches, architraved timber panelled doors and a dado rail.

The boundary walls are constructed from sandstone rubble with rounded ashlar coping. Stop-chamfered square-plan sandstone gatepiers feature pyramidal copes and replacement wrought iron gates.

An outbuilding, single-story, flat-roofed, symmetrical, and two-bay with castellated detailing, stands as a rectangular structure. It is built from stugged and snecked ashlar sandstone, with polished ashlar dressings. An eaves course runs along the top. Each bay contains a timber fixed pane window, topped with shouldered ashlar lintels and squared ashlar dies that project through the eaves course.