1 Eldon Terrace

1 Eldon Terrace is a 2-storey and attic building with a 2-window stucco front, displaying classical details similar to other contemporary terraces in Upper Bangor. The pairs of houses, Nos 1 to 4, are reflected in their design. The building features slate roofs with boarded eaves, and No 3 has a dentilled eave. There are brick and rendered chimney stacks, as well as gabled slate-hung dormers. The windows vary, with various sash and casement styles; Nos 3 and 4 include splayed bay windows. Nos 1, 3, and 5 retain stucco wreath motifs above an egg and dart cornice, with end pilasters adorned with acanthus foliage. Most windows have moulded architraves and bracket cills, topped with stucco lintel ornament. Each pair of houses has an overall doorcase featuring Ionic pilasters, a cornice, and foliage-carved brackets, which are also present at No 5. The doorways are recessed, with half-glazed doors at Nos 1 and 2, and twin-arched panelled doors at Nos 3 to 5.

The front is bordered by rubble walls that support ornate cast iron railings with intersecting pointed arches, although the railings have been removed from No 5. There is also stucco ornamentation above the door leading to the side passage.