Snowdon Mill and Ty'r Felin

A large former mill comprising 2 parallel ranges on a sloping site. The original, front range, facing Snowdon Street, is of slate-stone rubble in large blocks and laid in rough courses, under a slate roof. The 3-storey SE front has windows grouped 3+4. On the L side the middle-storey windows are partly obscured by an added pebble-dashed lean-to, which has a lower weatherboarded lean-to on its R side. Windows are all replacement small-pane and single-pane windows in original openings, of which the 3 L-hand windows are smaller. Between 2nd and 3rd storeys is a repainted stone tablet inscribed 'RG BR AD 1862'. At the L (SW) end is a slightly lower 3-storeyed 2-window house (Ty'r Felin) of pebble-dashed walls, slate roof and stack to the L, and replacement windows and entrance on its R side.

The NE gable end of the mill, where the ground level is lower, has an abutting wall of a former lower lean-to engine house at basement level, and a small-pane attic window. The rear of the front range and house have replacement windows, and the mill has a boarded door at 3rd-storey level. A short rear wing, part of the original link between the 2 ranges, has higher eaves and lower ridge, a half-hipped roof, replacement windows and lean-to against the lower storey. A narrow weatherboarded link is between wing and the rear mill range. On the NE side is a C20 flat-roofed link of cement render projecting in front of the gable end of the front range.

The 4-storey rear range is slightly higher than the front range and its ground storey is at a lower level. Its SW gabled front is rendered and painted and has a replacement door and enlarged flanking windows in the lower storey. Above are 3 superimposed boarded doors under shouldered heads, and the bracketed and gabled wooden frame of a former hoist, flanked by 2-light casement windows in each storey in original openings. The 6-window L (NW) side is cement rendered, except for the rubble-stone basement. It has replacement windows, in a larger openings lower R and a blocked doorway immediately to its L. The 3-window rear (NE) gable end has exposed slate-stone rubble laid in rough courses, a replacement door in the basement flanked by windows, of which the R-hand is blocked. Above are 2-light windows replaced in original openings.

Floors are carried on cast iron posts by J.H. Williams of Porthmadog, and retain trap doors.