Padarn House including front railings

Padarn House is a two-storey house built with white-painted stucco and features a slate eaves roof with rendered end stacks, which are larger on the left side. The building has a slightly offset three-window range to the right. The ground floor is rusticated up to a zigzag sill course at the first floor, with rusticated quoins and moulded hoodmoulds over the windows that include keyblocks and moulded stops. The windows are twelve-pane hornless sashes with slate sills. The central door is set within a later 19th-century painted timber porch, which has double half-glazed doors and a traceried overlight featuring an unusual pattern of two ogee-pointed lights with coloured glass spandrels, along with similar overlights with one ogee arch on each side over the side lights. The porch is topped with a shallow pediment and has an inner half-glazed door with an overlight.

On either side of the porch, the front wall is adorned with low iron railings that have spearheads and scrolled wrought iron at a lower level. The rear of the house has 20th-century windows, except for one window in the upper right that retains marginal glazing bars. There is a rear wing that consists of four bays and two storeys, with the upper floor made of painted brick. This section features four-pane sashes, with the upper left sash slightly jettied over a 20th-century porch. To the right, there is a board door with an attached casement beside two six-pane windows.

The interior, described in 2000, includes early 20th-century details such as a central hall with a patterned tiled floor and a straight-flight staircase with turned balusters and four-panel doors. The left room on the ground floor has a slate flagged floor and a fireplace with a tiled insert and a marble-effect slate surround. There is a cupboard on the rear wall that likely covered a former door, and a blocked window to the right. The parlour features an elaborate fireplace with a marble-effect surround, while the dairy at the rear has slate shelving. A narrow winding stair is located in the rear wing. The upper storey of the main house has been stripped, and the roof is a three-bay collar-truss design.