Derlwyn

Derlwyn: Nos 1-15 Arenig Street (odd), including forecourt walls and railings, and associated yard walls and outbuildings to the rear.

A highly accomplished Edwardian terrace built in 1909 in a sophisticated metropolitan baroque style, with dated hoppers.

The building comprises a refined two-and-a-half storey terrace of eight houses in English baroque style. It is constructed of brick with good quality red brickwork to the facade and sides, buff sandstone dressings, and original roughcast treatment to the rear elevation. A continuous hipped slate roof with feathered, oversailing eaves features wooden dentilated treatment. There are five chimneys with sandstone cappings; those serving nos 1 and 2 to the far right are rendered.

The terrace is symmetrical and conceived as an overall composition of 18 bays. Four paired bays at the centre and ends are advanced (bays 1, 5 and 7, 9 and 11, and 15). The centre pairs have large segmental pedimented gables with rolled leaded roofs, while the outer pairs have hipped slated roofs. Projecting sandstone ashlar quoins define each advanced pair.

The outer advanced bays each have two elegant sash windows to the ground and first floors: 18 panes to the ground floor and 12 panes to the first floor. These have flat arches with fine brick voussoirs and geometric stone keys. The central advanced bays have similar first-floor windows and paired 4-panel doors with rectangular overlights to the ground floor. The recessed end bays 1 and 5 have similar windows to the first floor with corresponding entrances. The remaining ground-floor bays (3, 5, 7, 9, 11, 13) have canted bay windows with 18-pane central sashes and 12-pane flanking sashes, with shaped moulded parapets to flat roofs, keystones and voussoirs. The attic floor has eight large flat-roofed dormers, each with a 16-pane casement.

The rear elevation is roughcast with segmentally-arched 12-pane sashes; 22 sashes serve the first floor. Eight slate-hung dormers as previously described are present. Each unit has a ground-floor rear entrance accessing a small brick-walled yard with boarded entrance and a wash-house or coal store block to the rear; one such block is shared between two units.

The terrace retains its original low brick forecourt walls to the front, surmounted by iron railings and gates in Art Nouveau style.

The interior was not inspected at the time of survey.