Bayfield, 12 Main Street, Port William

Bayfield, located at 12 Main Street in Port William, is an earlier 19th century building that originally consisted of a pair of cottages, now converted into a single dwelling. The structure is single storey with an attic and features five bays arranged in a 3-2 pattern. It is constructed of painted rubble with painted margins and a painted stone eaves course.

The east elevation facing Main Street has a doorway situated to the right of the center, featuring a deep-set modern boarded door with a fanlight above. The fenestration is regularly arranged, with a larger window in the outer right bay. There is a painted stone panel above a former doorway in the bay to the left of the center. Above the center and outer bays, there are later canted and piended dormer windows with timber finials. Smaller, shallowly-arched dormer windows are located above the bays to the left and right of the center.

The north elevation is gabled and blank, while the south elevation has a modern garage attached at the center and to the left.

The windows are fitted with plate glass glazing in timber sash and case frames, with a 16-pane glazing in the ground floor window of the outer right bay. The building features red sandstone coped skews and painted scrolled skewputts. The chimney stacks are made of painted rubble with red sandstone copes, with the gablehead and ridge being off-center to the north. The roof is covered with purple slates and has octagonal cans.