Quendale House, 31 Commercial Street, Lerwick

Quendale House, located at 31 Commercial Street in Lerwick, was built in 1865 and is a three-storey and attic building with a symmetrical three-bay design, currently used as offices. The principal elevation features stugged ashlar, while the side and rear elevations are constructed of harl-pointed random rubble with droved and stugged ashlar dressings. The building has a base course and an eaves cornice, with chamfered arrises around the openings on the front and margined openings on the side and rear.

On the north (principal) elevation, there is a six-panel timber entrance door with a plate glass fanlight, centrally located at the ground level. Above it, there is a round-arched window, with tripartite windows in the outer bays at both the ground and first floors, and bipartite windows in the outer bays at the second floor.

The west gable features narrow windows, with a rubble infill at the ground level centered with a window adjacent to the right. The first floor has windows flanking the center, and a small window is centered at the second floor.

The south (rear) elevation is irregularly fenestrated, featuring a round-arched stair window at the upper level to the left of center.

The windows throughout the building are primarily timber sash and case, with predominantly six-pane designs, three-pane sidelights for the tripartite windows, and four and twelve-pane windows on the rear elevation. The round-arched windows have 22-pane border-glazed fixed lights. The roof is covered with purple-grey slate and features a profiled cast-iron gutter, piend-roofed slate-hung timber dormers, and six-pane timber windows with top-hung sashes. The building also has stugged ashlar eight-flue apex stacks, which are capped with octagonal cans, along with ashlar skew copes and skewputts.

The property includes a concrete-coped rubble retaining wall to the north, with stone steps flanking the elevation. The boundary walls consist of a rubble wall topped with an ashlar cope and iron railing along Commercial Street, with flanking gateways made of stugged ashlar piers that have bases and pyramidal caps. To the south, there is a random rubble wall with an ashlar cope and a gate at the southern end, featuring stugged and droved square gatepiers with pyramidal caps and a cast-iron gate adorned with fleur-de-lys finials.