Moorgate, 4 Albert Street, Helensburgh

Moorgate, located at 4 Albert Street in Helensburgh, is a two-storey, asymmetrical, L-plan gabled Scottish Arts and Crafts villa designed by A N Paterson in 1903. The exterior features harled and painted surfaces, with squared, stugged, snecked cream sandstone detailing on the north elevation and cream ashlar dressings. The villa has ashlar mullioned windows, cills, and lintels, along with some crowstepped gables.

On the north elevation, which serves as the entrance, there is a shaped gable at the entrance bay that is advanced to the center. The ground level is finished in stugged, snecked sandstone, while the upper portion is harled. The off-centre left doorway has a timber door with vertical mouldings and a roll-moulded, shouldered surround. To the right of the doorway is a small bipartite window with a roll-moulded surround. Above, a Venetian window features a keystone that rises to an ashlar panel inscribed "WL 1903". To the right, there is a return with a window at the center on the ground floor and a bipartite window to the right. A taller gabled bay with an apex stack is recessed to the left, with windows on both the ground and first floors. A single-storey and attic wing is recessed to the right, featuring two ground floor windows and a window breaking the eaves to the left on the first floor. An adjoining lower single-storey and attic L-plan wing is located to the right.

The east elevation has a window at the center and another to the outer right on the ground floor, with a window at the center on the first floor breaking the eaves. There is also a small two-light window to the outer right. A full-height deep semicircular bow on the outer left includes three two-light mullioned and transomed windows at the ground level and three bipartite windows on the first floor.

On the south elevation, there is a taller gable to the outer right with an apex stack, a doorway to the left, and narrow windows flanking to the right and far right, with a flat canopy porch above. A window is centered on the first floor, with a small attic window above. A single-storey and attic wing advanced to the left has a curved eastern angle, corbelled to a square at the first floor, with two windows at the ground level and two dormer windows breaking the eaves above. A service wing adjoins to the left.

The villa predominantly features 12-pane sash and case windows. The red tiled roof has windows that break the eaves with cat-slide roofs, and the ashlar coped skews are complemented by scrolled skewputts. The harled stacks are also ashlar coped, with thistle-style tops to the flues.

The interior has not been seen. The boundary walls and gatepiers are made of stugged, snecked grey sandstone, with simple square-plan piers topped with ball finials.