Plâs Ifan

Plâs Ifan is a single-storey house that retains the high eaves level of the original chapel, with a lower two-storey annexe on the right (south). The building is roughcast overall and features slate roofs. There are tall roughcast chimneys on either side of the centre in the main range and at the end of the annexe. The front (west) of the main range is symmetrical, with 12-pane hornless sash windows and margin glazing on either side, positioned where the original doors were, and a high-level 4-pane window above the central porch. The main entrance is centrally located, featuring a panelled and half-glazed door behind a large flat-roofed glazed porch. The windows have stone sills.

To the right, set back, is a one-window annexe that served as the former manse for travelling preachers. It has a 12-pane unequal-sash window above and a 16-pane window below, both hornless but lacking the margin glazing of the main range and evidently of earlier date. In the angle between this annexe and the main range is a lean-to single-storey entrance lobby with a door and 20th-century casement windows.

At the rear of the main range, there are two original hornless sash windows with 12 panes and margin glazing, set in larger camber-headed openings with additional lights above a transom. There is also a modern 12-pane sash window with margin glazing centrally located in the former pulpit position. The rear features a conservatory, a timber annexe, and a lean-to glazed verandah.

The interior has been converted from the original single room of the chapel by adding a central corridor and creating rooms at the front and rear. Decorative ceiling roses from the original chapel remain, particularly the large central one, which has been slightly cut into by the corridor walls. The ceilings are approximately 4 meters high.