1 Rowallan Street, Helensburgh

A N Paterson, 1895. 2-storey, asymmetrical L-plan Scottish Arts and Crafts villa. Harled with red sandstone dressings. Windows with raised sandstone margins to S elevation, corniced at ground; sandstone cills and lintels to windows elsewhere; ashlar mullioned windows; cill and lintel courses; crowstepped gable.

E (ENTRANCE/ROWALLAN STREET) ELEVATION: lop-sided gabled bay with architraved doorpiece to centre, basket-arched opening with stop-chamfered roll-moulded surround, panelled fanlit door (lead-pane glazing to fanlight and upper panels of door), deep-set modern vestibule door, open-apex pediment with canted window above rising from tympanum. Wallhead stack to left, small window to far left at 1st floor. Window to right at ground. Later 2-storey block to outer right, harled at ground with window, grey slate-hung to 1st floor. N return, gabled slate-hung at 1st floor with tripartite window.

S (GARDEN) ELEVATION: single storey and attic crowstepped gabled bay to outer right with corniced canted window at ground, tripartite attic window. 2 windows to left at ground, tripartite flat-roofed dormer above.

W (SIDE) ELEVATION: lop-sided gabled bays to outer right and far left.

4 windows at ground, door off-centre left. Ashlar pedimented window breaking eaves to right, 2 windows to right. Window at 1st floor to gabled bay to far left. Lower block to outer left with lean-to porch, gabled dormerheaded window breaking eaves above.

N (REAR) ELEVATION: 2 small windows at ground in re-entrant angle, tripartite timber stair window with cross bar above, segmental-arch to each light, lead-pane glazing with stained glass. 2-storey service wing advanced to right, bipartite window in re-entrant angle, door to right. Later 2-storey wing to right joined to old by engaged circular tower with door facing NE and small window above. Small window slapping to outer right. Gabled return to N with wallhead stack removed.

Mostly sash and case windows with plate glass to lower sashes, 6-pane to upper sashes. Grey/green slate roof, ashlar coped skews, beak skewputts, ashlar coped stacks.

INTERIOR: original chimneypieces, timber balustered stair.

GATEPIERS AND GATES: red sandstone piers. Wrought-iron gates.