Bron Derw

Bron Derw is a pair of intentionally asymmetrical estate cottages built in the 19th century, forming a rough L-shape. The long range, known as Bron Derw, runs parallel to the road, while the projecting gabled range, Tan-y-bryn, has a short continuation of the long range to its left. The cottages are designed in a mild Gothic style, reflecting the estate's architectural choices, while also showing influences from the emerging Arts and Crafts movement.

The exterior features snecked rubblestone with large slate-stone lintels. The first floor is slate-hung, except for the short continuation of the long range at Tan-y-bryn. Both cottages have slate roofs with bargeboards on the overhanging verges, and the gable ends of Tan-y-bryn display decorative king-post trusses at the apexes.

Bron Derw has a wide gabled dormer on the right that breaks the eaves, featuring an inset 2-light, 12-paned window directly above a similar 3-light window on the ground floor. A roughly central 20th-century half-glazed door is located under a bracketed lean-to hood at the angle with a slightly projecting lean-to break on the left. This break includes a 2-light, 12-paned window on the ground floor and a 3-light flat-roofed dormer with a pediment directly above. The integral end stack on the right has a rendered base and two diagonal brownish brick shafts with stepped capping, while a similar stack on the left behind the ridge has three diagonal shafts.

Tan-y-bryn features two centrally placed 2-light, 12-paned casements on the first floor of its projecting gable. To the left and right of a narrow chamfered rectangular window on the ground floor, there are 2- and 3-light mullioned and transomed windows with glazing bars. A hip-roofed, largely glazed porch is located at the left return, where it meets the short continuation of the long range. This continuation has an integral stack with paired diagonal shafts and two 2-light, 12-paned windows on the first floor of the left gable end. A prominent stack with three clustered diagonal shafts is found in the roof slope of the right return of the gabled range.

The interior was not inspected at the time of the survey.