1 Arethusa Quay, Maritime Quarter, Swansea, SA1 3XH

1 Arethusa Quay is a one-bedroom detached house in Maritime Quarter, Swansea, Swansea (SA1 3XH). It has a recorded floor area of 41 m² (around 441 sq ft), construction records dating it to 1983-1990 and council tax band D. The latest certificate (February 2023) shows a C (score 70). The rating has held steady at C across 2 certificates since March 2011. Between certificates, lighting went from Good to Very Good; while hot-water efficiency dropped from Very Good to Good and main heating dropped from Very Good to Good. At 41 m² this is the 2nd smallest of 19 units on EPC record in the building, where floor areas span 40–82 m². The building's EPC ratings span E to B across 19 units on file. Other recorded features include a balcony.

Held since June 2000 — that's 26 years off the open market, well above the local norm. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. Today's modelled estimate of £126,000 sits 117.2% above the 2000 sale of £58,000. On a £-per-square-foot basis, the last sale (£131/sq ft) was about 17.9% above the typical sold price in the postcode. At 41 m² it's 17.2% smaller than the typical home in the postcode (50 m² median across 18 EPCs).